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.

Identification info

Metadata Language: English (en)

Character set: utf8

Dataset Reference Date (): 2010-06-18

Identifier: CEH:EIDC: / 1364210594753

Identifier: https://catalogue.ceh.ac.uk/id/4f6dcead-fd4c-4ae5-83ac-25694c9daf9b

UK Centre for Ecology & Hydrology

Centre for Ecology & Hydrology

NERC EDS Environmental Information Data Centre

UK Centre for Ecology & Hydrology

Maintenance and update frequency: notPlanned

Maintenance note: Completed

GEMET - INSPIRE themes, version 1.0 ()

Elevation

GeoNames

Keywords

Mapping
hydrology
hydrochemistry
water quality
plynlimon
severn
hafren
hore
tanllwyth
wye
gwy
cyff
iago
digital terrain model
DTM
digital elevation model
DEM
ground surface
river
stream

Limitations on Public Access: otherRestrictions

Other constraints: no limitations

Use constraints: otherRestrictions

Other constraints: This resource is made available under the terms of the Open Government Licence

Use constraints: otherRestrictions

Other constraints: © UK Centre for Ecology & Hydrology

Spatial representation type: grid

Distance: 15 urn:ogc:def:uom:EPSG::9001

Topic category

Elevation

Begin date: 1968-12-31

Code: OSGB 1936 / British National Grid

Distribution Information

Data format

ASCII grid ()

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Resource Locator: Supporting documents
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Quality Scope: dataset

Other: dataset

Report

Dataset Reference Date (): 2010-12-08

Statement: 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.

Metadata

File identifier: 4f6dcead-fd4c-4ae5-83ac-25694c9daf9b XML

Metadata Language: English (en)

Character set: ISO/IEC 8859-1 (also known as Latin 1)

Resource type: dataset

Hierarchy level name: dataset

Metadata Date: 2022-05-20T10:40:54

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Environmental Information Data Centre

Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK

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