flooding information for hampshire
TRANSCRIPT
Project funded by
Mark Braggins, Hampshire Hub Partnership ([email protected])Tim Pearson, RSAC Ltd, Project Manager ([email protected])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