Linking flood impact forecasting and satellite rapid mapping in Europe
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Linking flood
impact forecasting
and satellite rapid
mapping in Europe
Francesco Dottori, Milan Kalas, Peter Salamon,
Annett Wania, Ines Rivero (EC JRC)
Copernicus EU Copernicus EU
Copernicus EU www.copernicus.eu
Copernicus Programme
Emergency
Management
• It is the European Union's Earth Observation Programme,
• It offers information services based on satellite Earth Observation, models,
and in situ (non-space) data
• Copernicus Emergency Management Service (EMS) provides information
(with a global reach) for emergency preparedness, response and recovery
activities in relation to natural and man-made disasters.
Copernicus EMS - EFAS
Emergency
Management
European Flood Awareness System
Objective: Provide complementary, added value flood early
warning & monitoring products to improve the
preparedness and emergency response of national
stakeholders (e.g. hydrometeorological services)
Products:
different forecasting &
monitoring products (ensemble
river flood forecasts, flash flood
forecasts, impacts etc.)
Available through web interface
or OGC web services (WMS-T &
SOS)
Copernicus EMS - Rapid Mapping (RM)
Emergency
Management
• Mapping information of disaster events for emergency response
• Fast delineation of flood extent from satellite imagery
• 24/7/365 on-demand service
Image data provision
Crisis
Mapping
Authorised
Service ERCC Service
Request Criteria check activation
User
Service Provider
SFTP
EMS Portal Product specification &
Satellite image ordering
Service Production
delivery Map delivery
4
Linking Early Warning and Rapid Mapping
Emergency
Management Motivation
• Reduce time for image acquisition (66% of RM workflow)
• Optimise acquisition time with respect to event time
• improve timeliness of map production through pre-alerting
of potential RM activations for flood events (pre-tasking of
satellites)
How?
5
Linking Early Warning and Rapid Mapping
Emergency
Management Flow forecast
Identify river reaches
potentially affected and local
flood magnitude for any
event forecasted by EFAS
Linking Early Warning and Rapid Mapping
Emergency Rapid flood
Management Flow forecast mapping
Identify river reaches Calculate flood-prone
potentially affected and local areas (using
flood magnitude for any catalogues of flood
event forecasted by EFAS maps and protection
levels) and derive
forecast-based
inundation maps
Linking Early Warning and Rapid Mapping
Emergency Rapid flood
Management Flow forecast mapping
Identify river reaches Calculate flood-prone
potentially affected and local areas (using
flood magnitude for any catalogues of flood
event forecasted by EFAS maps and protection
levels) and derive
forecast-based
inundation maps
Impact assessment
Combine hazard maps with
exposure (pop. – landuse) and
vulnerability information
(damage functions) to
evaluate affected population
and urban areas, and
economic damage
Linking Early Warning and Rapid Mapping
Emergency Rapid flood
Management Flow forecast mapping
Identify river reaches Calculate flood-prone
potentially affected and local areas (using
flood magnitude for any catalogues of flood
event forecasted by EFAS maps and protection
levels) and derive
forecast-based
inundation maps
Impact assessment Satellite pre-tasking
Areas with high potential
Combine hazard maps with impact are identified and
exposure (pop. – landuse) and used to pre-task and
vulnerability information prioritize acquisition and
(damage functions) to processing of satellite
evaluate affected population images for monitoring flood
and urban areas, and events
economic damage
Linking EFAS and RM: Procedure
Emergency
Management
– Pre-tasking maximum 24 hours before the predicted event
– Service available only for authorized users (Emergency Response Coord.
Centre (ERCC – EFAS partners…)
Rapid Mapping availability (incl.
EFAS EFAS partner
activation procedure)
Alert (expected time,
peak, affected area)
Pre-tasking
ERCC
activity
Rapid
Mapping
Rapid Mapping Authorised
User
Satellite Map
tasking production Scheduled image acquisition
time & area
10
Legend: Actor Tasks UserLinking EFAS and RM: Procedure
Emergency
Management Development and status
• 2015-2016: Development of the procedure for test cases (e.g. Balkan
floods 2014, Ebro floods February 2015)
• 2016: Testing in pre-operational mode(France floods 2016, Romania
2016)
• 2017: Finalization of the procedure
• 2017- Now: notifications for RM pre-activation sent for 5 river flood
events with 3 requested RM activations (France flood 2018, Albania,
Spain)
11France Floods June 2016
Emergency
Management From end of May until beginning of June 2016
Mainly affecting Seine and Loire river basins
Estimated total cost of 1.3 billion euro
and 172,000 people having declared
damages
12France Floods June 2016
Emergency
Management Areas of Interest for
pre-tasking of satellite images
EFAS impact forecast (30th May)
Image pre-tasking (30th May)
13France Floods June 2016
Emergency Comparison of AOIs:
Management EFAS impact forecast (30th May)
Image pre-tasking (30th May)
RM user defined AOIs (1st June)
• Very good correspondence between pre-
tasked AoIs, user request and affected
areas....
• ....but image acquisition was delayed by
communication problems
14France Floods January 2018
Emergency
Management Mainly affecting Seine river basin and the Paris area (as in 2016 floods,
but with lower impacts)
1. First image (Sentinel-1) acquired on 22/6.
2. Radarsat images requested on 22nd and acquired on the 23rd.
3. First map produced on the 24th at 00:56
Sentinel-1 Radarsat-2 Expected peak Activation start
EFAS warning SPERF acquisition
acquisition
22/01/2018 22/01/2018 23/01/2018 23/01/2018 23/01/2018
22/01/2018
09:47 10:45 17:27 12:00 19:17
05:49
15France Floods January2018
Emergency
Management Proposed pre-tasking was actually requested by French authorized users
Flood monitoring with RM requested also for areas downstream of Paris
16Procedure
Emergency
Management Outlook
• Positive results from the EFAS-RM integration: significant time gain is
possible
• Raise awareness on user side about time gaps between request for
mapping and actually possible image acquisitions
• Connects EFAS and Mapping communities improved decision tools for
emergency response
• Expansion to the global scale (GloFAS-RM)
17Questions &
Comments?
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