Land Cover Map 1990 (25m raster, N. Ireland)

This dataset consists of the 25m raster version of the Land Cover Map 1990 (LCM1990) for Northern Ireland. The 25m raster product consists of three bands: Band 1 - raster representation of the majority (dominant) class per polygon for 21 target classes; Band 2 - mean per polygon probability as reported by the Random Forest classifier (see supporting information); Band 3 - purity - percentage of the polygon covered by the majority class. The 21 target classes are based on the Joint Nature Conservation Committee (JNCC) Broad Habitats, which encompass the entire range of UK habitats. This dataset is derived from the vector version of the Land Cover Map, which contains individual parcels of land cover and is the highest available spatial resolution. The 25m raster is the most detailed of the LCM1990 raster products both thematically and spatially, and it is used to derive the 1km products. LCM1990 is a land cover map of the UK which was produced at the Centre for Ecology & Hydrology by classifying satellite images (mainly from 1989 and 1990) into 21 Broad Habitat-based classes. It is the first in a series of land cover maps for the UK, which also includes maps for 2000, 2007, 2015, 2017, 2018 and 2019.

LCM1990 consists of a range of raster and vector products and users should familiarise themselves with the full range (see related records, the UKCEH web site and the LCM1990 Dataset documentation) to select the product most suited to their needs.

This work was supported by the Natural Environment Research Council award number NE/R016429/1 as part of the UK-SCAPE programme delivering National Capability.

Full details about this dataset can be found at https://doi.org/10.5285/d446589e-478f-4206-80ed-38a5ff4a7dc0

Identification info

Metadata Language: English (en)

Character set: utf8

Dataset Reference Date (): 2020-06-15

Identifier: https://catalogue.ceh.ac.uk/id/d446589e-478f-4206-80ed-38a5ff4a7dc0

Identifier: doi: / 10.5285/d446589e-478f-4206-80ed-38a5ff4a7dc0

Other citation details: Rowland, C.S., Marston, C.G., Morton, R.D., O’Neil, A.W. (2020). Land Cover Map 1990 (25m raster, N. Ireland). NERC Environmental Information Data Centre 10.5285/d446589e-478f-4206-80ed-38a5ff4a7dc0

UK Centre for Ecology & Hydrology - Rowland, C.S.

UK Centre for Ecology & Hydrology - Marston, C.G.

UK Centre for Ecology & Hydrology - Morton, R.D.

UK Centre for Ecology & Hydrology - O’Neil, A.W.

UK Centre for Ecology & Hydrology

NERC EDS Environmental Information Data Centre

NERC Environmental Information Data Centre

Maintenance and update frequency: notPlanned

GEMET - INSPIRE themes, version 1.0 ()

Land Cover

Keywords

Land cover
Land use
Northern Ireland
UK-SCAPE

Limitations on Public Access: otherRestrictions

Other constraints: no limitations

Use constraints: otherRestrictions

Other constraints: Licence terms and conditions apply

Use constraints: otherRestrictions

Other constraints: If you reuse this data, you should cite: Rowland, C.S., Marston, C.G., Morton, R.D., O’Neil, A.W. (2020). Land Cover Map 1990 (25m raster, N. Ireland). NERC Environmental Information Data Centre https://doi.org/10.5285/d446589e-478f-4206-80ed-38a5ff4a7dc0

Spatial representation type: grid

Distance: 25 urn:ogc:def:uom:EPSG::9001

Topic category

Geoscientific information
Imagery base maps earth cover

Begin date: 1988-01-01

End date: 1990-12-31

Code: TM75 Irish Grid

Distribution Information

Data format

TIFF ()

Resource Locator: Download the data
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Resource Locator: Supporting information
Supporting information available to assist in re-use of this dataset

Resource Locator: Download the data
Order a copy of this data

Resource Locator: Supporting information
Supporting information available to assist in re-use of this dataset

Quality Scope: dataset

Other: dataset

Report

Dataset Reference Date (): 2010-12-08

Statement: The 25m raster product is the most detailed of the LCM1990 raster products, both thematically and spatially, and it is derived from the LCM1990 vector product. For LCM1990, per-pixel classifications were conducted, using a random forest classification algorithm. The resultant classifications were then mosaicked together, with the best classifications taking priority. This produced a per-pixel classification of the UK, which was then 'imported' into the spatial framework, recording a number of attributes, including the majority class per polygon which is the Land Cover class for each polygon. The 25m raster product consists of three bands: Band 1 - raster representation of the majority (dominant) class per-polygon for the 21 target classes; Band2 - mean per polygon probability as reported by the Random Forest classifier; Band 3 -percentage of polygon covered by the majority class.

Metadata

File identifier: d446589e-478f-4206-80ed-38a5ff4a7dc0 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: 2021-10-08T12:00:26

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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