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Who is Responsible for Checking Flood Models
R Van Drie1 I Ghetti 2 P Milevski 11Floodplain Management Engineer Wollongong City Council Wollongong Australia
E-mail rudybalancerndcomau2Unit Leader Floodplain Management Team Wollongong City Council NSW Australia
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Mmm hellip Time for changes- Scott Hoganrsquos Acronymhellip C H A N G E- As an industry do we need to just breathehellip and take philosophical look at ourselves
- (Interesting discussionshellip Similar issues )
- Why am I here
- What is our role
- Keeping our Communities from Harm - (what is hampering this evolving at a better rate)
httpswwwdropboxcomsz8sqex9dcpl6c8s2018_ASFPM_VanDrie_etal_Finalpdfdl=0
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Mmm hellip Time for changes- What are we connected by (What is the common thread)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Mmm hellip Time for changes- As an industry do we need to just breathehellip and take philosophical look at ourselves
- Why am I here
- What is our role
- What do I know - about HAZARD- VxD
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
VxDhellipfor RayhellipQuestion
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Models (amp the Wollongong Context)
This presentation is generally about the need to check a flood model but specifically about the experiences at Wollongong City Council- About Wollongong- About Flooding (in Wollongong)- About Responsibility (for flood models)- What we currently do - What the future holdshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Wollongong Flood HistoryIn the past 50 years Wollongong has experienced over 30 floods classified as
serious severe or very severe During this period there were also three floods that
were classified as extreme In February 1984 850mm of rain fell in a 24 hour period
The last widespread extreme flood occurred in 1998 causing millions of dollars worth ofdamage and one fatalityNoting that a similarly localised floodoccurred in 1999 (1 year later )
- This is not unique to Australia as has
been shown in the US in Baltimorehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Hydrologic Features of Wollongong
bull Triangular Coastal Strip ndash 0km ndash 15km wide (N-S)
bull Orographic effectsbull Multiple catchmentsbull Small catchmentsbull Fast responsebull Early Development
(Clearing)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Development- Heavily Cleared of Vegetation- Progressed from the Ocean to
the Mtn- Flood capacity not considered
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Mmm hellip Time for changes- Scott Hoganrsquos Acronymhellip C H A N G E- As an industry do we need to just breathehellip and take philosophical look at ourselves
- (Interesting discussionshellip Similar issues )
- Why am I here
- What is our role
- Keeping our Communities from Harm - (what is hampering this evolving at a better rate)
httpswwwdropboxcomsz8sqex9dcpl6c8s2018_ASFPM_VanDrie_etal_Finalpdfdl=0
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Mmm hellip Time for changes- What are we connected by (What is the common thread)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Mmm hellip Time for changes- As an industry do we need to just breathehellip and take philosophical look at ourselves
- Why am I here
- What is our role
- What do I know - about HAZARD- VxD
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
VxDhellipfor RayhellipQuestion
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Models (amp the Wollongong Context)
This presentation is generally about the need to check a flood model but specifically about the experiences at Wollongong City Council- About Wollongong- About Flooding (in Wollongong)- About Responsibility (for flood models)- What we currently do - What the future holdshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Wollongong Flood HistoryIn the past 50 years Wollongong has experienced over 30 floods classified as
serious severe or very severe During this period there were also three floods that
were classified as extreme In February 1984 850mm of rain fell in a 24 hour period
The last widespread extreme flood occurred in 1998 causing millions of dollars worth ofdamage and one fatalityNoting that a similarly localised floodoccurred in 1999 (1 year later )
- This is not unique to Australia as has
been shown in the US in Baltimorehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Hydrologic Features of Wollongong
bull Triangular Coastal Strip ndash 0km ndash 15km wide (N-S)
bull Orographic effectsbull Multiple catchmentsbull Small catchmentsbull Fast responsebull Early Development
(Clearing)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Development- Heavily Cleared of Vegetation- Progressed from the Ocean to
the Mtn- Flood capacity not considered
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Mmm hellip Time for changes- What are we connected by (What is the common thread)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Mmm hellip Time for changes- As an industry do we need to just breathehellip and take philosophical look at ourselves
- Why am I here
- What is our role
- What do I know - about HAZARD- VxD
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
VxDhellipfor RayhellipQuestion
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Models (amp the Wollongong Context)
This presentation is generally about the need to check a flood model but specifically about the experiences at Wollongong City Council- About Wollongong- About Flooding (in Wollongong)- About Responsibility (for flood models)- What we currently do - What the future holdshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Wollongong Flood HistoryIn the past 50 years Wollongong has experienced over 30 floods classified as
serious severe or very severe During this period there were also three floods that
were classified as extreme In February 1984 850mm of rain fell in a 24 hour period
The last widespread extreme flood occurred in 1998 causing millions of dollars worth ofdamage and one fatalityNoting that a similarly localised floodoccurred in 1999 (1 year later )
- This is not unique to Australia as has
been shown in the US in Baltimorehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Hydrologic Features of Wollongong
bull Triangular Coastal Strip ndash 0km ndash 15km wide (N-S)
bull Orographic effectsbull Multiple catchmentsbull Small catchmentsbull Fast responsebull Early Development
(Clearing)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Development- Heavily Cleared of Vegetation- Progressed from the Ocean to
the Mtn- Flood capacity not considered
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Mmm hellip Time for changes- As an industry do we need to just breathehellip and take philosophical look at ourselves
- Why am I here
- What is our role
- What do I know - about HAZARD- VxD
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
VxDhellipfor RayhellipQuestion
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Models (amp the Wollongong Context)
This presentation is generally about the need to check a flood model but specifically about the experiences at Wollongong City Council- About Wollongong- About Flooding (in Wollongong)- About Responsibility (for flood models)- What we currently do - What the future holdshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Wollongong Flood HistoryIn the past 50 years Wollongong has experienced over 30 floods classified as
serious severe or very severe During this period there were also three floods that
were classified as extreme In February 1984 850mm of rain fell in a 24 hour period
The last widespread extreme flood occurred in 1998 causing millions of dollars worth ofdamage and one fatalityNoting that a similarly localised floodoccurred in 1999 (1 year later )
- This is not unique to Australia as has
been shown in the US in Baltimorehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Hydrologic Features of Wollongong
bull Triangular Coastal Strip ndash 0km ndash 15km wide (N-S)
bull Orographic effectsbull Multiple catchmentsbull Small catchmentsbull Fast responsebull Early Development
(Clearing)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Development- Heavily Cleared of Vegetation- Progressed from the Ocean to
the Mtn- Flood capacity not considered
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
VxDhellipfor RayhellipQuestion
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Models (amp the Wollongong Context)
This presentation is generally about the need to check a flood model but specifically about the experiences at Wollongong City Council- About Wollongong- About Flooding (in Wollongong)- About Responsibility (for flood models)- What we currently do - What the future holdshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Wollongong Flood HistoryIn the past 50 years Wollongong has experienced over 30 floods classified as
serious severe or very severe During this period there were also three floods that
were classified as extreme In February 1984 850mm of rain fell in a 24 hour period
The last widespread extreme flood occurred in 1998 causing millions of dollars worth ofdamage and one fatalityNoting that a similarly localised floodoccurred in 1999 (1 year later )
- This is not unique to Australia as has
been shown in the US in Baltimorehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Hydrologic Features of Wollongong
bull Triangular Coastal Strip ndash 0km ndash 15km wide (N-S)
bull Orographic effectsbull Multiple catchmentsbull Small catchmentsbull Fast responsebull Early Development
(Clearing)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Development- Heavily Cleared of Vegetation- Progressed from the Ocean to
the Mtn- Flood capacity not considered
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Models (amp the Wollongong Context)
This presentation is generally about the need to check a flood model but specifically about the experiences at Wollongong City Council- About Wollongong- About Flooding (in Wollongong)- About Responsibility (for flood models)- What we currently do - What the future holdshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Wollongong Flood HistoryIn the past 50 years Wollongong has experienced over 30 floods classified as
serious severe or very severe During this period there were also three floods that
were classified as extreme In February 1984 850mm of rain fell in a 24 hour period
The last widespread extreme flood occurred in 1998 causing millions of dollars worth ofdamage and one fatalityNoting that a similarly localised floodoccurred in 1999 (1 year later )
- This is not unique to Australia as has
been shown in the US in Baltimorehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Hydrologic Features of Wollongong
bull Triangular Coastal Strip ndash 0km ndash 15km wide (N-S)
bull Orographic effectsbull Multiple catchmentsbull Small catchmentsbull Fast responsebull Early Development
(Clearing)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Development- Heavily Cleared of Vegetation- Progressed from the Ocean to
the Mtn- Flood capacity not considered
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Wollongong Flood HistoryIn the past 50 years Wollongong has experienced over 30 floods classified as
serious severe or very severe During this period there were also three floods that
were classified as extreme In February 1984 850mm of rain fell in a 24 hour period
The last widespread extreme flood occurred in 1998 causing millions of dollars worth ofdamage and one fatalityNoting that a similarly localised floodoccurred in 1999 (1 year later )
- This is not unique to Australia as has
been shown in the US in Baltimorehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Hydrologic Features of Wollongong
bull Triangular Coastal Strip ndash 0km ndash 15km wide (N-S)
bull Orographic effectsbull Multiple catchmentsbull Small catchmentsbull Fast responsebull Early Development
(Clearing)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Development- Heavily Cleared of Vegetation- Progressed from the Ocean to
the Mtn- Flood capacity not considered
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Hydrologic Features of Wollongong
bull Triangular Coastal Strip ndash 0km ndash 15km wide (N-S)
bull Orographic effectsbull Multiple catchmentsbull Small catchmentsbull Fast responsebull Early Development
(Clearing)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Development- Heavily Cleared of Vegetation- Progressed from the Ocean to
the Mtn- Flood capacity not considered
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Development- Heavily Cleared of Vegetation- Progressed from the Ocean to
the Mtn- Flood capacity not considered
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
More issueshellipbull Watercourses run Perpendicular to major
transport infrastructure (Road and Rail)bull Lack of staff with expertise to check Modelsbull Worrying Trends in the Industry
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Flood Studies
bull 320km2 of catchment run directly from the Escarpment to the sea
bull LGA (Red) bull East flowing catchments
(Lgreen)bull Studies completed
(orange)bull ~ $5-10million
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Historic Level of Checking
bull Flood Studies have been conducted under a jointly funded structure since 1982 (with State and Federal monies and state oversight)ndash However with very limited technical oversight from
State authorities
bull Corporatisation of Local Government has resulted in a loss of internal expertise (1990rsquos)ndash Once had technical staff to undertake checking
bull Including at times independent modelling checks
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Found1 Instabilities at culverts and bridges2 Culverts poorly or wrongly placed 3 Culvert data wrong (size etc)4 Poor model construction glass walls5 Poor hydrology used as in input (in Hydraulic Model)6 Poor Sub Area subdivision in hydrologic model7 Use of lumped storage in 2D model8 Missing minor tributaries9 Missing major overland flow paths and areas10 Cross catchment flows not identified11 Cross section locations and spacing resulting in unrepresentative flow path capacity
(or restriction) 1D12 Poorly defined Mannings Roughness13 Poor description of building polygons resulting in excessive obstruction to flow14 Extent of model insufficient to cover flow width extent15 Poor production of Maps with errors (Eg 120 yr level higher then 1100 year level)bull hellipetc etc
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull In the context of a single catchment
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Drilling down into the catchment resultsndash Placement of Hydrograph impact on Depth ndash Connection of 1D elements interfacehellip
01
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Errors Exposed in Design Processndash Placement of Hydrograph impact on Depth
02
From Flood StudyAdoptedhellip(Ins) etc
Through Design Process
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Artificially high Flat pond ndash Properties (wrongly) identified as flood prone
03
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellip
bull Model predicting velocities that make no sense ndash Peak velocity through a house
bull Impact on Hazard definitionhellip
04
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Model error and post processing plotting
errorndash 5yr extent of flooding larger than 100 year
15 year Event
1100 year Event
05
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Errors Exampleshelliphelliphellipbull Poor Practices
ndash Glass wallsbull False raised flood heightbull (not picked up adopted)
ndash Study Redonebull Similar issues in new one
06
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Impact of Errorsbull Organisation embarrassed to have to identify errors publicallybull COST TO REDO Flood Study (s) Multiple timeshellipbull COST OF Issuing incorrect information (to developers etc)bull Impacts of Flood Insurancehellip
bull Some errors (placing hydrograph in wrong location) have resulted in houses being built where models show no flooding But reality
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Checking Capabilitybull In Australia most Local Authorities have very
limited capacity (especially since corporatization)
bull Larger councils (WCC amp Brisbanehellip) have staff with expertisendash The only real viable approach to date was limited to
reading the report reviewing data reviewing results plots etc Realistically non effective
bull Very limiting given its over a total catchment
ndash Many more errors uncovered in time with using the resultshellip
bull Water level enquiries for development (S149 certificates)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Better Approachesbull Model build Report
ndash Steps taken by consultant to create their flood models including all data input and changeshellip
bull Warranty Clausehellipbull Shadow Check Models
ndash Availability of Free Open Source Modelbull ANUGA (and its capabilities)
ndash A Model Frameworkbull Built on ANUGA and Python codebull Know your Maths (more laterhellip)
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA bull Finite Volume shock capturing discontinuous
rainfall on grid flexibly sized triangular gridbull Flexible to apply due to Pythonic controlsbull Single output file holds Full time history
bull Momentum ElevationStage any otherbull Open source increasing contributors in time
ndash Eg Mareila Perignon (Univ Colorado)bull ANUGA Featured at the University of Colorado (Community
Surface Dynamics Modeling System) CSDMS ANUGA Clinic 24 May 2018
httpsenwikipediaorgwikiANUGA_Hydro
httpsgithubcomGeoscienceAustraliaanuga_core
httpscsdmscoloradoeduwikiHydrological_Models
Run Eg 1 Run Eg 2
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Why ANUGA
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
IMPACT of ANUGA bull FAST MODEL DEVELOPMENTbull Fast to determine Flow Paths
ndash Used to aid consultant in setting up models
bull Shadow Check modelsndash Have uncovered many problems with consultants
modelsndash Used to assist in correcting mistakesndash Used to compare volume and Hydrographs
bull Improved outcome for Flood Studies
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Frameworkbull What is a Framework
bull Systematic structured approach whereby complex computationally intensive tasks can be reproduced (and updated) consistently and efficiently
bull Additional Outcomeshellipndash Flash Flood Warning System
bull (linked to Radar Rainfall)
ndash Community Flood Feedback Frameworkndash Design input tool for Council projectshellip
bull Proof of Concepthellipbull The Maths
httpswwwfloodplainconferencecompapers2014Rudy20Van20Driepdf
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
Conclusionbull Of the now 100rsquos of flood studies conducted for
WCC since 1982 not a single one has been free of significant errorsndash Modelling Errors Processing Errors
bull How to Check Modelsndash WCC Shadow check models
bull Leading to a FRAMEWORK (Autonomous Flood Modelling)
bull Who is Responsiblebull We are ALL Responsiblehellip (bring back honesty)
ndash Burdened (the Authority)ndash Leverage (Contractually)
bull Limitedhellip -Warranty Concepts
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
RECOMMENDATIONS
bull Hold your Consultants Accountable ndash Warranty Period Concepts
bull Withholding payments till study has been used and tested for 12 months
bull Building and maintaining library of Modelsndash (That are owned and kept active and up to date)
bull Consideration of a In-house Modelling Framework (Using ANUGA FOSS)ndash Autonomous Modelling
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
TAKE HOME MESSAGE
Make your Consultants Accountable
Consider how to develop Checking Methods
Check Models
Benefit of Organisational Autonomous Flood Model Framework hellip
We are all responsiblehellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
KAHOOT
Please use your device to log into
KAHOOTit
We will progress through 5 questionshellip
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
rudybalancerndcomauDirect any Questions to
Session F1 330 ndash 500pm 20052018
QUESTIONS
bull rudybalancerndcomau
If any one has any questions about- this presentation or - the ANUGA model or - Training in the use of ANUGA
- I would like to propose to prepare a Workshop on the use of ANUGA- 2019 (would there be any interest )
Feel free to contact me
![Package ‘leaflet.extras’ file2 R topics documented: Leaflet [ctb, cph] (leaflet-draw library), Alexander Milevski [ctb, cph] (leaflet-draw-drag library), John Firebaugh [ctb,](https://img.pdfslide.us/doc/110x75/5e11b7bc0d58387ad2599954/package-aleaietextrasa-r-topics-documented-leaiet-ctb-cph-leaiet-draw.jpg)
![Package ‘leaflet.extras’€¦ · 2 R topics documented: Leaflet [ctb, cph] (leaflet-draw library), Alexander Milevski [ctb, cph] (leaflet-draw-drag library), John Firebaugh](https://img.pdfslide.us/doc/110x75/608d006aa2bcbb1cea58a1f4/package-aleaietextrasa-2-r-topics-documented-leaiet-ctb-cph-leaiet-draw.jpg)