b0b524f5-254d-462b-ad69-57726dc92891 eng utf8 dataset Environment Agency DSPcustomerforum@environment-agency.gov.uk pointOfContact 2025-07-25 Environment Agency Metadata Profile 1.1 http://www.opengis.net/def/crs/EPSG/0/27700 Remotely Sensed Flood Estimates 2016-05-05 creation 2023-12-15 revision e0c64fdb-2502-4efd-b98b-243f70d8e53e The estimated flood extent is an un-validated raw product often processed rapidly to share with category one partners during an incident. You must refer to the limitations of the data when using this dataset. This dataset is a GIS layer which shows raw, unvalidated flood estimates, derived from a variety of remotely sensed data during a flood incident. These extents are best estimates based upon what can be seen in the image at the time of image capture. Remotely sensed imagery can be acquired upon a variety of platforms, including satellite, aircraft and drones at differing resolutions. Each estimated flood extent is attributed to describe the source of imagery, resolution and date of acquisition, as well as whether the digitised extent is permanent water, as described in the Ordinance Survey OpenMap Local Surface Water product, or our best estimate of ‘flood’. During an on-going incident we may produce several extents to assess how water is moving though the environment over a time-series. Each extent is assessed and validated by Environment Agency Area teams post-incident. This often involves combining the flood estimate with additional sources of information such as rack marks and local community knowledge to produce a single extent that best describes the peak of a flood event. If accepted and verified the flood estimate will be included in our Recorded Flood Outline records. Only once an estimate has been assessed for inclusion in the recorded flood outline will it be added to the remotely sensed flood estimates layer. This layer will be updated in parallel with the recorded flood outlines. The geometry of the remotely sensed flood estimates may not match the recorded flood outlines for a specific event. Limitations of the data: All flood extent mapping is generated from imagery that is a snap-shot in time and is unlikely to represent the extent of peak flood. The extents show flooding to the land and does not necessarily indicate that properties were flooded internally and are therefore not suitable for identifying if an individual property has flooded. During incidents a variety of different satellites and sensors may be used with different qualities and effective resolutions, for example, RADAR data and Optical data. Different sensors will likely produce different outcomes. For example, Optical data of a given resolution will normally show more detail than RADAR data at the same resolution, in part due to the noise inherent in RADAR data. Generally, for RADAR data with a 10-metre pixel resolution, the minimum mappable unit will be about 1000 square metres (clusters of approximately 10 pixels). RADAR data is appropriate for generating an overview of flooding and for estimating flood extent in agricultural settings. Attribution statement: © Environment Agency copyright and/or database right 2016. All rights reserved. Environment Agency DSPcustomerforum@environment-agency.gov.uk https://environment.data.gov.uk/support Defra Data Services Forum pointOfContact irregular flooding environment theme flood GEMET - Concepts, version 2.4 2010-01-13 publication geonetwork.thesaurus.external.theme.gemet GIS digital format GEMET - Concepts, version 2.4 2010-01-13 publication geonetwork.thesaurus.external.theme.gemet flooding GEMET - Concepts, version 2.4 2010-01-13 publication geonetwork.thesaurus.external.theme.gemet Open Government Licence otherRestrictions license copyright There are no public access constraints to this data. Use of this data is subject to the licence identified. otherRestrictions license copyright There are no public access constraints to this data. Use of this data is subject to the licence identified. vector eng utf8 environment true -6.236 2.072 49.943 55.816 2013-12-06 2014-03-24 Open format | Shapefile (SHP) Not Applicable https://environment.data.gov.uk/api/file/download?fileDataSetId=0e329603-28c2-4c16-a47a-b268cc17efd5&fileName=Remotely_Sensed_Flood_Estimates.gdb.zip http Remotely_Sensed_Flood_Estimates.gdb.zip Remotely_Sensed_Flood_Estimates.gdb.zip download on Defra Data Services Platform https://environment.data.gov.uk/api/file/download?fileDataSetId=0e329603-28c2-4c16-a47a-b268cc17efd5&fileName=Remotely_Sensed_Flood_Estimates.geojson.zip http Remotely_Sensed_Flood_Estimates.geojson.zip Remotely_Sensed_Flood_Estimates.geojson.zip download on Defra Data Services Platform https://environment.data.gov.uk/api/file/download?fileDataSetId=0e329603-28c2-4c16-a47a-b268cc17efd5&fileName=Remotely_Sensed_Flood_Estimates.gpkg.zip http Remotely_Sensed_Flood_Estimates.gpkg.zip Remotely_Sensed_Flood_Estimates.gpkg.zip download on Defra Data Services Platform https://environment.data.gov.uk/api/file/download?fileDataSetId=0e329603-28c2-4c16-a47a-b268cc17efd5&fileName=Remotely_Sensed_Flood_Estimates.shp.zip http Remotely_Sensed_Flood_Estimates.shp.zip Remotely_Sensed_Flood_Estimates.shp.zip download on Defra Data Services Platform https://environment.data.gov.uk/explore/b0b524f5-254d-462b-ad69-57726dc92891?download=true http Survey Data - Download Download data by area of interest https://environment.data.gov.uk/spatialdata/remotely-sensed-flood-estimates/wms?request=GetCapabilities&service=WMS http Remotely Sensed Flood Estimates WMS Remotely Sensed Flood Estimates WMS https://environment.data.gov.uk/spatialdata/remotely-sensed-flood-estimates/wfs?request=GetCapabilities&service=WFS http Remotely Sensed Flood Estimates WFS Remotely Sensed Flood Estimates WFS https://environment.data.gov.uk/spatialdata/remotely-sensed-flood-estimates/ogc/features/v1 http OGC API - Features service OGC API - Features service dataset The estimated flood extent is an un-validated raw product often processed rapidly to share with category one partners during an incident. You must refer to the limitations of the data when using this dataset. This dataset is a GIS layer which shows raw, unvalidated flood estimates, derived from a variety of remotely sensed data during a flood incident. These extents are best estimates based upon what can be seen in the image at the time of image capture. Remotely sensed imagery can be acquired upon a variety of platforms, including satellite, aircraft and drones at differing resolutions.