EIDC

Plynlimon research catchments: digital terrain model

Hydrologically corrected digital terrain model (DTM) of Plynlimon catchments. The DTM was derived from digitised elevation data from scanned topographic maps.
Publication date: 2010-06-18

Format

ASCII grid

Spatial information

Study area
Spatial representation type
Raster
Spatial reference system
OSGB 1936 / British National Grid

Temporal information

Temporal extent
1968-12-31    to    …

Provenance & quality

Plynlimon digital terrain model was derived from digitised elevation data. The elevation data had been digitised from scanned topographic maps (reference below). Once the elevation data was captured (spot heights and contour lines) a TIN was created which was then used to derived a hydrologically corrected, grid-based DTM. All the processing was done in ARCINFO however it was not documented therefore no further details can be provided. Topographic maps reference: Plynlimon Catchment Areas - Severn Catchment. Sheet No. 1. Scale 1:5000. Wallingford, Berkshire. Institute of Hydrology, Natural Environmental Research Council, 1968. Plynlimon Catchment Areas - Wye Catchment. Sheet No. 2. Scale 1:5000. Wallingford, Berkshire. Institute of Hydrology, Natural Environmental Research Council, 1968.

Related

This dataset is included in the following collections

Plynlimon research catchments

Correspondence/contact details

UK Centre for Ecology & Hydrology
Maclean Building, Benson Lane, Crowmarsh Gifford
OX10 8BB Wallingford
Oxfordshire
UNITED KINGDOM
 enquiries@ceh.ac.uk

Other contacts

Rights holder
UK Centre for Ecology & Hydrology
Custodian
NERC EDS Environmental Information Data Centre
 info@eidc.ac.uk
Originator
Centre for Ecology & Hydrology
 enquiries@ceh.ac.uk

Additional metadata

Topic categories
elevation
INSPIRE theme
Elevation
Keywords
cyff , DEM , digital elevation model , digital land model , digital terrain model , DTM , ground surface , gwy , hafren , hore , Hydrology , iago , Mapping , plynlimon , river , severn , stream , tanllwyth , United Kingdom , Wales , Water quality , wye
Last updated
27 February 2024 16:16

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This dataset is made available under the terms of the Open Government Licence

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© UK Centre for Ecology & Hydrology