WMS BGS GeoScour provides river scour susceptibility information for Great Britain using a three-tiered data provision allowing increasing levels of understanding at different resolutions from catchment to local (channel/reach) scales. GeoScour includes 11 GIS layers, providing information on the natural characteristics and properties of catchment and riverine environments for the assessment of river scour in Great Britain. The data product fills a gap in current scour modelling, with the input of geological properties. It provides an improved toolkit to more easily assess and raise the profile of scour risk, now and in the future, to help infrastructure providers and funders prioritise resources, identify remedial works to preclude costly and prevent disruptive failures. The data product has broad applications through its adaptation to suit multiple types of asset likely to be affected by fluvial erosion. The GeoScour Data Product is designed to be used by multiple stakeholders with differing needs and therefore, can be interrogated at a number of levels. Tier 1 data provides a summary overview of the catchment characteristics, typical response type, and evolution. It can be used as a high-level overview for incorporation into catchment management plans, national reviews and catchment comparisons. Tier 2 data are available as smaller catchment areas and focusses on providing data for more detailed catchment management, natural flood management and similar uses. It analyses geological properties such as flood accommodation space, catchment run-off potential, and geomorphology types, as well as additional summary statistics of key environmental parameters such as protected sites and urban coverage. Tier 3 data provide the detailed riverine information that is designed to be incorporated into more complex river scour models. It provides the baseline geological context for river scour development and processes and identifies important factors that should be considered in any scour model. Factors such as material mineralogy, strength and density are key properties that can influence a river’s ability to scour. In addition, an assessment of river fall, sinuosity and flood accommodation space is also provided. This data is of use to all users assessing the propensity for river scour for any given reach of a river across Great Britain. Tier 1 and 2 data are available with an OGL, Tier 3 data is licenced. Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Onshore GeoScour River Flood OneGeology MD_DATE@2022 MD_LANG@ENG Garry Baker British Geological Survey Head of BGS Data Centre postal

British Geological Survey Environmental Science Centre

Keyworth Nottingham NG12 5GG UK +44 (0)115 936 3100 +44 (0)115 936 3200 enquiries@bgs.ac.uk none These data are delivered under the terms of the Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/), subject to the following acknowledgement accompanying the reproduced BGS materials: Contains British Geological Survey materials copyright UKRI [year]. Contact us if you create something new and innovative that could benefit others usingbgsdata@bgs.ac.uk. 4096 4096 application/vnd.ogc.wms_xml text/xml text/xml image/bmp image/jpeg image/tiff image/png image/png8 image/png24 image/png32 image/gif image/svg+xml application/vnd.esri.wms_raw_xml application/vnd.esri.wms_featureinfo_xml application/vnd.ogc.wms_xml application/geo+json text/xml text/html text/plain application/vnd.ogc.se_xml application/vnd.ogc.se_inimage application/vnd.ogc.se_blank text/xml XML CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69534349.81886960.851103 0 The Catchment Surface Geology Susceptibility dataset was developed by analysing the sum length (as a percentage) of all scour susceptibility classes per catchment area, and the dominant class by percentage, using a combination of the EA's Scottish Catchments, England & Wales Catchments. A dominant class (highest percentage) is also provided for each catchment. The data layer identifies the average, worst and best-case scenario results along with the dominant class for each catchment area. Catchments having a large percentage coverage or number of designated sites will require a higher attention in terms of scour risk and management. Tier 2 GeoScour open dataset at subcatchment level (worst-case geological susceptibility). The Catchment Geological Susceptibility dataset calculates the length of river within each catchment for each scour susceptibility class based on worst-case susceptibility scoring. The dominant class is also provided as a separate attribute Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Information Geomorphology River OneGeology continent@Europe subcontinent@Northern Europe geographicarea@United Kingdom of Great Britain and Northern Ireland dataprovider@British Geological Survey serviceprovider@British Geological Survey DS_TOPIC@geoscientificinformation DS_DATE@2022 thematic@Geomorphology CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69534349.81886960.851103 text/html 1 The Catchment Surface Geology Susceptibility dataset was developed by analysing the sum length (as a percentage) of all scour susceptibility classes per catchment area, and the dominant class by percentage, using a combination of the EA's Scottish Catchments, England & Wales Catchments. A dominant class (highest percentage) is also provided for each catchment. The data layer identifies the average, worst and best-case scenario results along with the dominant class for each catchment area. Catchments having a large percentage coverage or number of designated sites will require a higher attention in terms of scour risk and management. Tier 2 GeoScour open dataset at subcatchment level (best-case geological susceptibility). The Catchment Geological Susceptibility dataset calculates the length of river within each catchment for each scour susceptibility class based on best-case susceptibility scoring. The dominant class is also provided as a separate attribute. Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Information Geomorphology River OneGeology continent@Europe subcontinent@Northern Europe geographicarea@United Kingdom of Great Britain and Northern Ireland dataprovider@British Geological Survey serviceprovider@British Geological Survey DS_TOPIC@geoscientificinformation DS_DATE@2022 thematic@Geomorphology CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69534349.81886960.851103 text/html 2 The Catchment Surface Geology Susceptibility dataset was developed by analysing the sum length (as a percentage) of all scour susceptibility classes per catchment area, and the dominant class by percentage, using a combination of the EA's Scottish Catchments, England & Wales Catchments. A dominant class (highest percentage) is also provided for each catchment. The data layer identifies the average, worst and best-case scenario results along with the dominant class for each catchment area. Catchments having a large percentage coverage or number of designated sites will require a higher attention in terms of scour risk and management. Tier 2 GeoScour open dataset at subcatchment level (average-case geological susceptibility). The Catchment Geological Susceptibility dataset calculates the length of river within each catchment for each scour susceptibility class based on average-case susceptibility scoring. The dominant class is also provided as a separate attribute. Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Information Geomorphology River OneGeology continent@Europe subcontinent@Northern Europe geographicarea@United Kingdom of Great Britain and Northern Ireland dataprovider@British Geological Survey serviceprovider@British Geological Survey DS_TOPIC@geoscientificinformation DS_DATE@2022 thematic@Geomorphology CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69534349.81886960.851103 text/html 3 BGS GeoScour provides river scour susceptibility information for Great Britain using a three-tiered data provision allowing increasing levels of understanding at different resolutions from catchment to local (channel/reach) scales. The Catchment_Designated_Sites layer is part of a suite of 11 GIS layers, organised into three different levels (Tiers 1, 2 and 3) and focussing on the natural characteristics and properties of catchment and riverine environments. This layer is part of the Tier 2 level, which focusses on the small catchment areas. Tier 2 contains four other layers: Catchment_Geological_Runoff_Potential, Catchment_Morphology, Catchment_Urban_Coverage and Catchment_Flood_Accommodation_Space. The Catchment_Designated_Sites is a polygon shapefile that describes the number, area and coverage percentage of designated (or protected) sites per catchment using the Water Framework Directive (WFD) Management Catchments Cycle 2 for England, Wales and Scotland, respectively. The six designated sites included in the layer are the Ancient Woodland Inventory (AWI), National Nature Reserves (NNR), Wetlands of International Importance (Ramsar), Special Areas of Conservation (SAC), Special Protection Areas (SPA) and Sites of Special Scientific Interest (SSSI). The designated sites correspond to areas that need and receive protection because of their environmental, historical or cultural value to the nation. These designated sites are areas protected for their bio and geodiversity value. Catchments having a large percentage coverage or number of designated sites will require a higher attention in terms of scour risk and management. Tier 2 GeoScour open dataset at subcatchment level (morphology). The Catchment Morphology data describes the dominant catchment morphology type. Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Information Geomorphology River OneGeology continent@Europe subcontinent@Northern Europe geographicarea@United Kingdom of Great Britain and Northern Ireland dataprovider@British Geological Survey serviceprovider@British Geological Survey DS_TOPIC@geoscientificinformation DS_DATE@2022 thematic@Geomorphology CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69534349.81886960.851103 text/html 4 Tier 2 GeoScour open dataset at subcatchment level (geological runoff potential). The Catchment Geological Run-off Potential dataset provides a summary representation of the propensity for surface water to drain into local watercourses based on the overall geological properties, and permeability of deposits, of the surface geology by catchment. Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Information Geomorphology River OneGeology continent@Europe subcontinent@Northern Europe geographicarea@United Kingdom of Great Britain and Northern Ireland dataprovider@British Geological Survey serviceprovider@British Geological Survey DS_TOPIC@geoscientificinformation DS_DATE@2022 thematic@Geomorphology CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69534349.81886960.851103 text/html 5 Tier 2 GeoScour open dataset at subcatchment level (flood accommodation). The Catchment Flood Accommodation dataset is designed to provide an estimate of the amount of flood space potential available within the catchment area both as a percentage and area. These are calculated according to topography and do not take into account any flood defences or artificial flood constructions. Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Information Geomorphology Flood OneGeology River continent@Europe subcontinent@Northern Europe geographicarea@United Kingdom of Great Britain and Northern Ireland dataprovider@British Geological Survey serviceprovider@British Geological Survey DS_TOPIC@geoscientificinformation DS_DATE@2022 thematic@Geomorphology thematic@Flood CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69534349.81886960.851103 text/html 6 Tier 2 GeoScour open dataset at subcatchment level (designated sites). The Catchment Designated Sites dataset is a polygon shapefile that describes the number, area and coverage percentage of designated (or protected) sites per catchment using the Water Framework Directive (WFD) Management Catchments Cycle 2 for England, Wales and Scotland, respectively. Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Information Geomorphology River OneGeology continent@Europe subcontinent@Northern Europe geographicarea@United Kingdom of Great Britain and Northern Ireland dataprovider@British Geological Survey serviceprovider@British Geological Survey DS_TOPIC@geoscientificinformation DS_DATE@2022 thematic@Geomorphology CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69534349.81886960.851103 text/html 7 Tier 2 GeoScour open dataset at subcatchment level (urban coverage). The Catchment Urban Coverage dataset is a polygon shapefile that describes the number, area and coverage percentage of small and large urban areas per catchment using the Water Framework Directive (WFD) Management Catchments Cycle 2 Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Information Geomorphology River OneGeology continent@Europe subcontinent@Northern Europe geographicarea@United Kingdom of Great Britain and Northern Ireland dataprovider@British Geological Survey serviceprovider@British Geological Survey DS_TOPIC@geoscientificinformation DS_DATE@2022 thematic@Geomorphology CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69534349.81886960.851103 8 GeoScour_v2_Catchment_Stability provides a summary overview of the catchment characteristics, typical response type, and evolution. It can be used as a high-level overview for incorporation into catchment management plans, national reviews and catchment comparisons using BGS Glaciation Limits reclassified on a combination of the SEPA's FRM Local Plan Districts, EA's WFD River Basin Districts Cycle 2 boundaries. Tier 1 GeoScour open dataset which identifies and describes the relative catchment-scale characteristics in terms of landscape evolution, sediment availability and typical response in flood conditions. Maps Geology United Kingdom GeoIndex Data Spatial Holdings Geoscience Services Information Geomorphology OneGeology River continent@Europe subcontinent@Northern Europe geographicarea@United Kingdom of Great Britain and Northern Ireland dataprovider@British Geological Survey serviceprovider@British Geological Survey DS_TOPIC@geoscientificinformation DS_DATE@2022 thematic@Geomorphology CRS:84 EPSG:4326 EPSG:27700 -9.1920112.69508149.87343460.851103 text/html