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  3. Defra's Marine Digital Elevation Model (DEM) - 6 arc seconds

Defra's Marine Digital Elevation Model (DEM) - 6 arc seconds

Summary

This dataset contains Digital Elevation Model (DEM) shapefiles for the waters surrounding the United Kingdom to a depth of 200 metres. This resolution is 6 arc seconds which covers the widest possible geographic area. 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.

Categories

Use limitation statement

There are no public access constraints to this data. Use of this data is subject to the licence identified.

Attribution statement

© Crown Copyright

Technical information

Update frequency

asNeeded

Lineage

ETRS89 approximates to the WGS84 datum and as far as the input data is concerned, the two datums have been used synonymously, unless otherwise realised. Chart Datum approximates to the level of Lowest Astronomical Tide (LAT) and was used as this is the standard vertical reference datum of the source data received from the UKHO.

Spatial information

Geographic extent

  • Latitude from: 50 to 60.9
  • Longitude from: -11.1 to 1.8
Metadata information

Language

English

Metadata identifier

abd88963-7db0-4c37-9d19-9630be79967f


Published by

Department for Environment, Food & Rural Affairs

Contact publisher

open@defra.gov.uk

Dataset reference dates

Creation date

31 March 2017

Revision date

23 January 2018

Publication date

N/A

Period

  • From: 31 March 2017
  • To: 31 March 2017

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