english heritage - asessing the risk of flooding with gis
DESCRIPTION
English Heritage is guardian to many of the most important archaeological and historic sites in the country. With just over 420 individual properties in its care ranging from prehistoric stone circles to a cold-war bunker, English Heritage needed a clear assessment of the threat flooding and erosion poses to its estate, recognising that the risks may be increasing in severity due to climate change. Coastal properties were assessed in 2011 and now work has just been completed assessing the risk flooding and erosion poses to the inland estate of some 360 properties. The challenge was to use GIS to assess the risk posed to each property from flooding using data supplied by the Environment Agency and then to prepare a report presenting the evidence for use by managers. The predicted impact on each estate was presented in tabular format using data derived from the project GIS along with more detailed assessments of 60 estates found to be at highest risk. The report concluded with an overall summary of the exposure of the English Heritage Estate to flood risk and put forward suggestions for future work to inform discussions between English Heritage, the Environment Agency and Local Authorities.TRANSCRIPT
Trevor Pearson
Assessing the Risk of Flooding
to the English Heritage
Inland Estate
Data Source Supplier
English Heritage Regions English Heritage
English Heritage estates English Heritage
Detailed River Network Environment Agency
Main Rivers Environment Agency
Flood Alert Areas Environment Agency
Historic Flood Event Outlines (with
dates)Environment Agency
Flood Zone 2 Environment Agency
Flood Zone 3 Environment Agency
Flood Map for Surface Water - 30
years (shallow)Environment Agency
Flood Map for Surface Water - 30
years (deep)Environment Agency
Areas susceptible to ground water
floodingEnvironment Agency
OS 1:10,000 mapping Ordnance Survey
UK TopographyCGIAR Consortium for Spatial Information
http://srtm.csi.cgiar.org/
