Project funded by

Mark Braggins, Hampshire Hub Partnership (mark.braggins@hants.gov.uk)Tim Pearson, RSAC Ltd, Project Manager (tim@rsacl.co.uk)Local Authority Discovery Day13 March 2015Satellite Applications Catapult, Harwell, UK

FLOODING INFORMATION FOR HAMPSHIRE

HAMPSHIRE HUB

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 3

WuDoWuD

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 4

DIFFERENT FIRE SERVICE EVENTS ARE CONCENTRATED IN DIFFERENT AREAS

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 5

Geology Surface water Distance to surface water

Spot heights Flood extents Road and rail interactions

CRUNCHING THE DATA – BUILDING UP A PICTURE

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 6

FIRST PASS AT A PREDICTIVE MODEL

– White represents areas with a high probability of flooding

– Green represents areas with a low probability of flooding

– Red crosses indicate known flood callout locations (positive targets)

– Blue crosses indicate non-flooded locations (negative targets)

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 7

FLOOD RISK IN HAMPSHIRE

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 8

Southern Daily Echo

Winchester Today

BBC

BBC Southern Daily EchoBBC

FLOODING INFORMATION FOR HAMPSHIRE

– Investigate, through example-led consultation, the interest amongst Hampshire Hub partners in EO-derived products with the potential to enhance flood risk management

– including improving the effectiveness of Whether You Do or Weather You Don’t

– 3-month project (initially)– January – March 2015

– Report on perceived utility of products, provide recommendations for operational implementation and possible integration within WUDOWUD

– Proposed portfolio of products promises to improve the efficiency of flood risk management and response activities within HCC and the wider public sector by facilitating smarter operations

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 9

Led by the UK Space AgencyDelivered in collaboration with the Satellite Applications Catapult

PRODUCTS AND APPLICATIONS PORTFOLIO

– Flood maps– accurate and timely maps of flood extent and depth– derived from radar and optical satellite images

– Flood extent vs flood plain capacity– indicator of impending criticality in natural systems

– Land cover information for flooded areas– the nature of submerged land– to inform emergency response strategies, recovery prioritisation, compensation payment

calculations– Catchment sensitive farming

– information about farming practices potentially linked to increased flood risk– Landscape change maps

– information potentially relating to altered risk of flooding– Flood plain characterisation

– detailed, up-to-date elevation models– support for mitigation scenario testing

– Property damage survey by UAV– Crowdsourced geo-tagged eyewitness information about evolving flood events

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 10

Project funded by

FLOOD MAPS

FLOOD MAPSOptical

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 12

Testwood Lakes

Flood map for1 February 2014 (orange) shown over Landsat 8 false colour composite (middleinfra-red, infra-redand red)

© RSAC 2014; Landsat imagery courtesy of NASA Goddard Space Flight Center and U.S. Geological Survey

FLOOD MAPSVHR SAR

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 13

Romsey

Flooding on24 December 2013 appears blue in a multi-temporal composite of COSMO-SkyMedVHR SAR images (30 August 2013, 24 December 2013)

COSMO-SkyMed Product – © ASI 2013 processed under license from ASI – Agenzia Spaziale Italiana. All rights reserved. Distributed by e-GEOS.

FLOOD MAPSVHR SAR

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 14

Testwood Lakes

Flooding on24 December 2013 appears blue in a multi-temporal composite of COSMO-SkyMedVHR SAR images (30 August 2013, 24 December 2013)

COSMO-SkyMed Product – © ASI 2013 processed under license from ASI – Agenzia Spaziale Italiana. All rights reserved. Distributed by e-GEOS.

COPERNICUS SENTINEL-1 SAR DATA

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 15

IWS mode250km-wide swathVV polarisation16 November 2014

acquisition repeated routinely every 12 days

FLOOD MAPSSentinel-1 SAR

Pulborough, West Sussex16 November 2014

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 16

Flooding visible in November 2014 Flooding has regressed by December 2014

FLOOD MAPSSentinel-1 SAR

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 17

West Sussex

Flood map for16 November 2014 (blue) shown over Sentinel-1 IWS image

FLOOD MAPSSentinel-1 SAR

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 18

Project funded by

LAND COVER IN FLOOD-PRONE AREAS

LAND COVER INFORMATION

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 20

ENHANCED LAND COVER INFORMATIONLand Cover Plus

– Annual crop map in the context of the UK’s national Land Cover Map– Produced from multi-temporal satellite radar data– Provides detailed, up-to-date and consistent cropping data

– Operational service planned from 2015 using free Sentinel-1 data

– Innovate UK co-funded feasibility study included trial site in eastern Hampshire for 2014

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 21

LC+: CROP MAP OF EASTERN HAMPSHIRE, 2014

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 22

LAND COVER INFORMATION INTERSECTED WITH FLOOD RISK

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 23

R i v e r I t c h e n

Project funded by

LANDSCAPE CHARACTER

CROWDSOURCING LANDSCAPE CHANGE

Develop an innovative solution to extract information about changes in the landscape from archived aerial photography and satellite imagery using crowdsourcing via an online platform– Invite citizens to identify/map/describe changes between two image vignettes of the same

area acquired on different dates

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 25

First pre-commercial service demonstrator to be based on HCC archive aerial photography– Crowdsourcing campaign aligned with Hampshire Hub– Task involving description of the makeup of the Hampshire landscape and

the changes that are occurring within it– Addresses some flood risk management requirements as well as providing

new county-wide datasets giving an overall picture of the health of the county

– Launching soon!

LANDSCAPE WATCH HAMPSHIRE

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 26

THEMATIC DISPLAY OF RESULTS

– Data presented as thematically coloured raster maps

– Using any one or combination of a number of landscape character parameters

– Holistic view of the state of the country and hotspot locations for various types of change for end users

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 27

Project funded by

UAV SURVEY

ULTRA-HIGH RESOLUTION SITE SURVEY

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 29

Romsey flood plain5 March 2015

RSAC-owned eBee UAV

N >

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 30

Resolution = 3cm

© RSAC Ltd 2015

ULTRA-HIGH RESOLUTION SITE SURVEY

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 31

N > Romsey Flood Plain

Derived elevation model

ULTRA-HIGH RESOLUTION SITE SURVEY

Oblique imaging capability

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 32

© RSAC Ltd 2014

FURTHER PLANNED WORK

– Case studies finalisation– Integration with WUDOWUD

– Demonstration Workshop at HCC– detailed presentation of case studies

– Products utility assessment

– Recommendations for further development and operational implementation of flooding information services, and their integration within current processes

Local Authority Discovery Day | 13 March 2015 | SAC, Harwell, UK 33