Defra's Marine Digital Elevation Model (DEM) - 1 arc second (north)

PLEASE NOTE: This dataset is currently only available via an SFTP connection via a large data request here: https://environment.data.gov.uk/support/datadownload

This dataset contains Digital Elevation Model (DEM) file download (north) files for the waters surrounding the United Kingdom to a depth of 200 metres.

This resolution is 1 arc second covering primarily the coastal areas. Geographic coordinates were used throughout and the DEM is referenced to the ETRS89 datum horizontally and Chart Datum vertically.

All input data was made available under licence by the UK Hydrographic Office (UKHO) to Defra for the purpose of DEM creation. Attribution statement: © Crown Copyright

Data and Resources

Additional Info

Field Value
Last Updated July 1, 2026, 06:07 (UTC)
Created June 11, 2018, 14:27 (UTC)