Plynlimon research catchments: catchment boundaries

These catchment boundaries define upland catchments and subcatchments at the headwaters of rivers Upper Hafren (Severn) and Upper Gwy (Wye). They identify the area of study of the Plynlimon research catchment project.

Publication date: 2010-06-18

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Supporting documentation

Format of the dataset : ESRI Shapefile format

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

© Centre for Ecology & Hydrology (Natural Environment Research Council)

This dataset is part of the following

Where/When

Study area
Temporal extent
1968-12-31    to    …

Provenance & quality

The catchment boundaries have been digitised from scanned topographic maps of Plynlimon Catchment Areas. The source of the sub-catchments boundaries is unknown but must have also being digitised, most likely from hand-drawn boundaries on scanned maps. The topographic maps reference are: 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. Plynlimon Catchment Areas. Sheet No. 1. Scale 1:10000. Wallingford, Berkshire. Institute of Hydrology, Natural Environmental Research Council, 1968

Correspondence/contact details

Dr. Matt Fry
Centre for Ecology & Hydrology
Maclean Building, Benson Lane, Crowmarsh Gifford
OX10 8BB Wallingford
Oxfordshire
United Kingdom
enquiries@ceh.ac.uk

Other contacts

Custodian
Environmental Information Data Centre
eidc@ceh.ac.uk
Originator
Centre for Ecology & Hydrology
enquiries@ceh.ac.uk

Spatial

Spatial representation type
Vector
Spatial reference system
OSGB 1936 / British National Grid

Tags

Topic categories
Boundaries , Inland Waters
Keywords
Agriculture cyff,  gwy,  hafren,  hore,  hydrochemistry,  hydrology,  Hydrology iago,  plynlimon,  severn,  tanllwyth,  United Kingdom Wales water quality,  Water Resources wye
INSPIRE Theme
Hydrography