Embed Size (px)
Citation preview
iMOD in India Ganga Basin iMOD User Day - Delft Software Days 2016
Roelof Stuurman
(Frans Roelofsen, this week in Delhi: [email protected])
The main focus is the river system. The groundwater study is supporting the river assessment
High level objectives (TOR WorldBank)
To significantly strengthen the capability of relevant central and state government agencies to undertake comprehensive evidence-based strategic basin planning for the Ganga River basin
To develop, document and disseminate (through detailed analytical work and stakeholder engagement) a set of plausible scenarios that balance significantly improving the health of the river and maintaining an acceptable level of economic productivity, and
To build stronger and more accessible information and knowledge base to guide ongoing dialogue around and management of the Ganga River basin
To establish ongoing multi-stakeholder engagement processes in the basin to support strategic basin planning
7 november 2016
7 november 2016
Set-up of the River Basin Model
WFlow
hydrology
routing
iMOD
ground water
pollutants
database
DWAQ:
water
quality
GANGA Dashboard
SPHY
mountain
hydrology RIBASIM:
water
resources
ecological
knowledge
rules
GANGA WIS
7 november 2016
Global scale water
demand model
(10x10 km grid)
Conceptual model
Stakeholder participation,
training
iMOD groundwater
model
Complex groundwater surface water interaction
7 november 2016
Types of groundwater – surface water interaction
7 november 2016
1. Continuous draining river,
3. Continuous Infiltrating river
(hydrological connection)
5. Continuous infiltration, (surface
water and groundwater
disconnected)
2. Periodically changing from
drainage into infiltration,
4. Through flow situation
iMOD model set-up
Project Advantages of iMOD:
• iMOD is open source and free
• Fast, flexible and consistent sub-domain modeling techniques.
• Can handle very large, high resolution models. Ganga basin > 3 million
grid cells
• Geo-editing of the subsurface
• Easy to use Graphical User Interface
• Powerful 2d/3d data visualization (also long time series)
• Easy model linking with other Deltares software for hydrology and water
resources ( e.g. WFlow/D-Hydrology and Ribasim)
7 november 2016
Infiltration / drainage Maps
What will be the results
Conceptual model
What will be the results
7 november 2016
Ground water model
Data sharing
Infiltration / drainage Maps
Conceptual model
Map of Groundwater Management Unit
iMOD initial model results
GW quantity –SW/GW interaction
? ?
?
? Flow direction unknown
Loosing river
River
7 November, 2016
3 day iMOD training in Delhi an Kolkatta
40 participants at 2 courses of each 3 days
7 November, 2016
Number of iMOD downloads in India
INDIA:
Largest number
of downloads
outside The
Netherlands,
30 downloads
7 november 2016
Status of the project
• Present (November 2016)
> Still some requests for data (geohydrology)
> Validating and processing data for mode input
> Linking iMOD with Wflow and Ribasim (set up tools to exchange water
fluxes / waterlevels)
• Near Future
> (ground)water models ready: March 2017
> Defining and calculating scenarios / measures: March - September 2017
> Project ready: December 2017
• Far Future
> On-going update and use of models by national/state governments and
consultants
7 november 2016
7 november 2016
