20200612 11303300 1.0 FALSE FRM_FH_RIVER_EXTENT_M 64150.000000 467115.000000 534000.000000 1216600.000000 1 002 Projected GCS_OSGB_1936 Linear Unit: Meter (1.000000) British_National_Grid <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.2.0'><WKT>PROJCS["British_National_Grid",GEOGCS["GCS_OSGB_1936",DATUM["D_OSGB_1936",SPHEROID["Airy_1830",6377563.396,299.3249646]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",400000.0],PARAMETER["False_Northing",-100000.0],PARAMETER["Central_Meridian",-2.0],PARAMETER["Scale_Factor",0.9996012717],PARAMETER["Latitude_Of_Origin",49.0],UNIT["Meter",1.0],AUTHORITY["EPSG",27700]]</WKT><XOrigin>-5220400</XOrigin><YOrigin>-15524400</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>27700</WKID><LatestWKID>27700</LatestWKID></ProjectedCoordinateSystem> 20250122 14325100 20250122 14325100 INSPIRE 150000000 5000 dataset Scottish Environment Protection Agency foi@sepa.org.uk Angus Smith Building, Unit 6, 4 Parklands Avenue, Eurocentral Holytown ML1 4WQ GB 03000 99 66 99 9am - 5pm Scottish Environment Protection Agency Scottish Environment Protection Agency 20250122 File Geodatabase 10 https://www.sepa.org.uk/environment/environmental-data/ Esri ArcGIS 13.2.4.49743 SEPA River Flood Map v3.0 River Flood Extent Map for Scotland - Medium Probability 2014-01-01T00:00:00 2014-01-01T00:00:00 2025-02-25T00:00:00 0000 These maps have been produced to meet SEPA’s duty to publish flood hazard maps as set out in the Flood Risk Management (Scotland) Act 2009. The maps show where there is a risk of flooding from rivers, the sea and surface water. <DIV STYLE="text-align:Left;"><DIV><DIV>The following probabilities are available for river flooding: High - 10 year return period, Medium - 200 year return period, Low - 1000 year return period and 200 year return period plus climate change using the UKCP09 high emissions scenario for the 2080s.The climate change scenario has been defined by United Kingdom Climate Projection 2009 (UKCP09) predictions for 2080s high emissions 67th percentile. The river hazard maps show (where available): Flood extent, flood depth, flood velocities (where appropriate).</DIV></DIV></DIV> ©SEPA 2025; this SEPA product is licensed under the Open Government Licence version 3.0 1 -8.156783 -0.765630 60.832876 54.589150 GEMET - INSPIRE themes, version 1.0 2008-06-01T00:00:00 http://www.eionet.europa.eu/gemet/inspire_themes Natural risk zones SEPA river flood map flooding Scottish Environment Protection Agency foi@sepa.org.uk Angus Smith Building, Unit 6, 4 Parklands Avenue, Eurocentral Holytown ML1 4WQ GB 03000 99 66 99 9am - 5pm Scottish Environment Protection Agency Scottish Environment Protection Agency Scottish Environment Protection Agency Scottish Environment Protection Agency foi@sepa.org.uk Angus Smith Building, Unit 6, 4 Parklands Avenue, Eurocentral Holytown ML1 4WQ GB 03000 99 66 99 9am - 5pm Scottish Environment Protection Agency Scottish Environment Protection Agency Scottish Environment Protection Agency Scottish Environment Protection Agency <DIV STYLE="text-align:Left;"><DIV><DIV>Any use of these products must fully acknowledge the sources of the data. ©SEPA 2025; this SEPA product is licensed under the <A href="http://www.nationalarchives.gov.uk:80/doc/open-government-licence/version/3/" STYLE="text-decoration:underline;">Open Government Licence version 3.0</A>.Copyright and attribution information is available on <A href="https://www.sepa.org.uk:443/environment/environmental-data/" STYLE="text-decoration:underline;">SEPA's Data Publication webpage</A>. </DIV></DIV></DIV> Scottish Environment Protection Agency foi@sepa.org.uk Angus Smith Building, Unit 6, 4 Parklands Avenue, Eurocentral Holytown ML14WQ GB 03000 99 66 99 9am - 5pm Scottish Environment Protection Agency Scottish Environment Protection Agency Scottish Environment Protection Agency Scottish Environment Protection Agency The river flood maps are produced by combining results from national two-dimensional (2D) hydrodynamic modelling and detailed local authority studies using a range of methods. The river model resolution varies between 5m and 20m depending on the Digital Terrain Model (DTM) source and remoteness of the area. The DTM is a composite of Light Detection and Ranging (LiDAR) and Synthetic Aperture Radar (SAR), to which raised flood defences are added, and blockages due to in-channel structures are removed. Flood defence information is taken from the Scottish Flood Defence Asset Database (SFDAD). Surface roughness is based on a land use classification derived from Ordnance Survey (OS) MasterMap, and buildings are represented with a high roughness. River model inflows are taken from the UK Centre of Ecology and Hydrology (UKCEH) Flow Grid which has been updated using local gauged data where appropriate. The channel capacity is represented by either filling the channel to the top of the bank in the DTM and routing the calculated floodplain flow through the model, or assuming the channel is well represented in the DTM and routing the full flow through the model. The flood plain flow, has been calculated assuming the channel capacity for all watercourses is equal to the Median Annual Maximum Flow. Inflows are steady-state, and models are run until inflows and outflows converge. A constant mean high water springs (MHWS) level has been assumed at coastal boundaries. The climate change scenario is based on the 67th percentile for changes in flood flow in the UKCP09 high emissions scenario from the study An assessment of the vulnerability of Scotland's river catchments and coasts to the impacts of climate change, UKCEH, 2011. COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08T00:00:00 Internal check carried out 1 47093 EPSG 6.3(3.0.1) FRM_FH_RIVER_EXTENT_M Feature Class 47093 Polygon ESRI OBJECTID OBJECTID OID 4 0 0 Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Shape Geometry 0 0 0 Feature geometry. Esri Coordinates defining the features. MAP_TYPE MAP_TYPE String 50 0 0 Type of Mapping SEPA Text SOURCE SOURCE String 50 0 0 Source of Flooding SEPA Text METRIC METRIC String 50 0 0 Metric of flooding within the dataset SEPA Text PROB PROB String 50 0 0 Probability of flooding SEPA Text BAND_DESC BAND_DESC String 50 0 0 Description of the Metric of flooding SEPA Text GRIDCODE GRIDCODE SmallInteger 2 0 0 Numeric code to describe the metric of flooding SEPA Value SCENARIO SCENARIO String 50 0 0 Description of the climate scenario type SEPA Text CCGRIDCODE CCGRIDCODE SmallInteger 2 0 0 Numeric code to describe the climate scenario type SEPA Value REFERENCE REFERENCE String 50 0 0 Spatial geographic area reference. Hydrometric Area for river datasets and location of data not available for climate change datasets. SEPA Text VERSION VERSION String 50 0 0 Version number of flood map SEPA Text ISSUE_DATE ISSUE_DATE Date 8 0 0 Publication date SEPA Date Shape_Length Shape_Length Double 8 0 0 Length of feature in internal units. Esri Positive real numbers that are automatically generated. Shape_Area Shape_Area Double 8 0 0 Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. Simple FALSE 47093 TRUE FALSE