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
View record as
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
Correspondence/contact details
UK Centre for Ecology & Hydrology
Maclean Building, Benson Lane, Crowmarsh Gifford
OX10 8BB Wallingford
Oxfordshire
UNITED KINGDOM
enquiries@ceh.ac.uk
OX10 8BB Wallingford
Oxfordshire
UNITED KINGDOM
Other contacts
- Rights holder
-
UK Centre for Ecology & Hydrology
- Custodian
-
NERC EDS Environmental Information Data Centreinfo@eidc.ac.uk
- Originator
-
Centre for Ecology & Hydrologyenquiries@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
More information about these numbers
View numbers valid from 01 June 2023 Download numbers valid from 20 June 2024 (information prior to this was not collected)
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This dataset is made available under the terms of the Open Government Licence
© UK Centre for Ecology & Hydrology