Identification

Title

Plynlimon research catchments: digital terrain model

Abstract

Hydrologically corrected digital terrain model (DTM) of Plynlimon catchments. The DTM was derived from digitised elevation data from scanned topographic maps.

Resource type

dataset

Resource locator

https://data-package.ceh.ac.uk/sd/4f6dcead-fd4c-4ae5-83ac-25694c9daf9b.zip

name: Supporting documents

description: Documents available to assist in re-use of this dataset.

function: information

https://data-package.ceh.ac.uk/data/4f6dcead-fd4c-4ae5-83ac-25694c9daf9b

name: Download the data

description: Get a copy of this data

function: download

Unique resource identifier

code

1364210594753

codeSpace

CEH:EIDC:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

elevation

Keywords

Keyword set

keyword value

Elevation

originating controlled vocabulary

title

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

originating controlled vocabulary

title

reference date

date type

creation

effective date

2006-01-01

Keyword set

keyword value

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

Geographic location

West bounding longitude

-3.821

East bounding longitude

-3.633

North bounding latitude

52.514

South bounding latitude

52.415

Temporal reference

Temporal extent

Begin position

1968-12-31

End position

Dataset reference date

date type

publication

effective date

2010-06-18

Frequency of update

notPlanned

Quality and validity

Lineage

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.

Conformity

Conformity report

specification

title

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

ASCII grid

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

© UK Centre for Ecology & Hydrology

Responsible organisations

Responsible party

organisation name

UK Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

pointOfContact

Responsible party

organisation name

Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

originator

Responsible party

organisation name

NERC EDS Environmental Information Data Centre

email address

info@eidc.ac.uk

responsible party role

custodian

Responsible party

organisation name

UK Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

owner

Metadata on metadata

Metadata point of contact

organisation name

Environmental Information Data Centre

full postal address

Lancaster Environment Centre, Library Avenue, Bailrigg

Lancaster

LA1 4AP

UK

email address

info@eidc.ac.uk

responsible party role

pointOfContact

Metadata date

2021-06-25T18:39:54

Metadata language