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Satellite Flood Footprints

Background

Large flood events can have a significant impact on the insurance industry. However, during and in the immediate aftermath of such large events, the extent of the flood losses are often unknown and a reliable loss estimate only develops over time.

Rapid high-resolution flood footprints based on satellite earth observation data can facilitate the assessment of the impact of large flood events while they are developing. These data represent geo-coded ‘snapshots’ showing the area covered by the flood water at a given time during the event. Overlaid with geo-referenced information on, for example, population or insured values, they allow for immediate impact assessment during and after a flood. This information can then be used by the insurance industry as well as national and local authorities to assist in their efforts to respond to flood disasters. 

A joint working group consisting of satellite operators, earth observation service providers and members of the insurance industry has produced a standardized process to provide rapid, easy-to-use flood footprint information for significant flood events. The working group consists of Allianz, EQECAT, the European Space Agency, Guy Carpenter, Munich Re, PERILS, SERTIT, Swiss Re, Vista and Willis. PERILS is acting as an independent distribution platform to make the data available to all interested parties.

Flood Footprint Data

Available flood footprint data are based on high resolution satellite images. There are two types of data sets. The first are ‘Rapid Flood Snapshots’ taken as a flood event develops. These are made available in GeoTIFF format within 24 hours of receipt of the initial ‘raw’ satellite data. The second is a map of the maximum flood extent over the lifetime of an event which is made available in GIS shape format (‘Maximum Flood Extent Map’). Both data sets can be readily imported into geographical information systems (GIS) or map viewers for further analysis. For more detailed information on satellites, data resolution and data types please download the Flood Footprint Data Description.

An illustrative sample of Rapid Flood Snapshots and the Maximum Flood Extent for the flooding caused by the windstorm Xynthia storm surge in Western France is available below. During a 12 month-trial period, more flood footprint data will be added as new significant flood events unfold.  

Access to Flood Footprint Data

To access flood footprint information for a given event please click on the links below. Access requires a one-time registration and acceptance of Disclaimer and Terms of Use. During the trial period the flood footprint information is available free of charge. 



Alberta flooding - June 2013

Location: Calgary, Alberta, Canada



Satellite Data Date, Time Data Type Preview
Rapid Flood Snapshot 22 Jun 2013 18:42 UTC GeoTIFF Download
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Central Europe flooding - 03.06.2013 to 11.06.2013

Location: Germany, Austria, Czech Republic

Satellite Data Date, Time Data Type Preview
Maximum Flood Extent 03.06.2013 to 11.06.2013 GIS shape Download


Satellite Data Date, Time Data Type Preview
Rapid Flood Snapshot 12 Jun 2013 09:45 UTC GeoTIFF Download
Rapid Flood Snapshot 11 Jun 2013 09:05 UTC GeoTIFF Download
Rapid Flood Snapshot 10 Jun 2013 10:00 UTC GeoTIFF Download
Rapid Flood Snapshot 9 Jun 2013 09:15 UTC GeoTIFF Download
Rapid Flood Snapshot 8 Jun 2013 10:15 UTC GeoTIFF Download
Rapid Flood Snapshot 7 Jun 2013 19:32 UTC GeoTIFF Download
Rapid Flood Snapshot 6 Jun 2013 10:25 UTC GeoTIFF Download
Rapid Flood Snapshot 5 Jun 2013 18:18 UTC GeoTIFF Download
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Komarom-Esztergom flooding - June 2013

Location: Komárom-Esztergom, Northern Hungary



Satellite Data Date, Time Data Type Preview
Rapid Flood Snapshot 8 Jun 2013 09:20 UTC GeoTIFF Download
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Magdeburg flooding - June 2013

Location: Magdeburg, Saxony-Anhalt, Germany



Satellite Data Date, Time Data Type Preview
Rapid Flood Snapshot 10 Jun 2013 10:19 UTC GeoTIFF Download
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Dresden flooding - June 2013

Location: Dresden, Saxony, Germany



Satellite Data Date, Time Data Type Preview
Rapid Flood Snapshot 5 Jun 2013 10:08 UTC GeoTIFF Download
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Xynthia flooding - 2 Mar 2010 to 6 Mar 2010

Location: Charron, Charente-Maritime department, France.

Satellite Data Date, Time Data Type Preview
Maximum Flood Extent 2 Mar 2010 to 6 Mar 2010 GIS shape Download


Satellite Data Date, Time Data Type Preview
Rapid Flood Snapshot 6 Mar 2010 17:51 UTC GeoTIFF Download
Rapid Flood Snapshot 5 Mar 2010 09:39 UTC GeoTIFF Download
Rapid Flood Snapshot 4 Mar 2010 17:09 UTC GeoTIFF Download
Rapid Flood Snapshot 2 Mar 2010 10:15 UTC GeoTIFF Download
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