Land Cover Map 2000 (1km percentage target class, GB)

https://doi.org/10.5285/d5ee5360-12c5-448c-9d2b-f5c941fe3948

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This dataset consists of a 1km resolution raster version of the Land Cover Map 2000 for Great Britain. The raster consists of 27 bands. Within each band, each 1km pixel represents a percentage cover value for one of 27 target (or 'sub') classes, roughly representing Broad Habitats. [Note subclass codes are numbered 0-26 but the raster bands are numbered 1-27; therefore each band relates to the one below it in the subclass code list (e.g. band 1 = unclassified, 2 = Sea/Estuary, 3 = inland water, etc]

The dataset is part of a series of data products produced by the Centre for Ecology & Hydrology known as LCM2000. LCM2000 is a parcel-based thematic classification of satellite image data covering the entire United Kingdom. The map updates and upgrades the Land Cover Map of Great Britain (LCMGB). Like the earlier 1990 products, LCM2000 is derived from a computer classification of satellite scenes obtained mainly from Landsat, IRS and SPOT sensors and also incorporates information derived from other ancillary datasets.

LCM2000 was classified using a nomenclature corresponding to the Joint Nature Conservation Committee (JNCC) Broad Habitats, which encompasses the entire range of UK habitats. In addition, it recorded further detail where possible. The series of LCM2000 products includes vector and raster formats, with a number of different versions containing varying levels of detail and at different spatial resolutions.

Publication date: 2002-01-01

2 citations

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More information

View numbers valid from 01 June 2023 Download numbers valid from 20 June 2024 (information prior to this was not collected)

Format

TIFF

Spatial information

Study area

Spatial representation type

Raster

Spatial reference system

OSGB 1936 / British National Grid

Temporal information

Temporal extent

2000-01-01 to 2000-12-31

Provenance & quality

In a major development of the 1990 methods, LCM2000 used image segmentation to identify land parcels in the pixel-based images. An automated procedure grouped the image pixels into spectrally 'uniform' segments. These were built around 'seedpoints' selected to avoid parcel boundaries. The segmentation recorded a field-by-field pattern, also separating land use zones within urban and suburban areas, and subdividing mosaics of semi-natural vegetation. Generalisation gave minimum mappable units of a half hectare. A 'vector' version was then created in the geographical information system (GIS), where the boundaries between the pixel-based segments were represented by digital linework. The resultant land parcels were treated as GIS objects to which attribute data could then be attached covering such topics as land cover class, parcel area, length of boundary, processing history, knowledge-based correction and identification of the original satellite scene. The raster products have been derived from the vector dataset. LCM20o0 was produced at CEH Monks Wood. For further information on the methodology developed and used to create Land Cover Map 2000, see online supporting documentation.

Licensing and constraints

Terms and conditions apply

Cite this dataset as:

Fuller, R.M.; Smith, G.M.; Sanderson, J.M.; Hill, R.A.; Thomson, A.G.; Cox, R.; Brown, N.J.; Clarke, R.T.; Rothery, P.; Gerard, F.F. (2002). Land Cover Map 2000 (1km percentage target class, GB). NERC Environmental Information Data Centre. https://doi.org/10.5285/d5ee5360-12c5-448c-9d2b-f5c941fe3948

BibTeX RIS

This dataset is included in the following collections

Land Cover Map 2000

Citations

Holloway, P., Miller, J.A., & Gillings, S. (2016). Incorporating movement in species distribution models: how do simulations of dispersal affect the accuracy and uncertainty of projections? International Journal of Geographical Information Science, 1–25. https://doi.org/10.1080/13658816.2016.1158823

Pringle, H., & Siriwardena, G. (2022). The potential for analyses of monitoring scheme data to inform about the impacts of invasive on native species. Biological Invasions, 24(8), 2457-2476 https://doi.org/10.1007/s10530-022-02785-8

Supplemental information

Fuller, R.M., Smith, G.M., Sanderson, J.M., Hill, R.A., & Thomson, A.G. (2002). The UK Land Cover Map 2000: construction of a parcel-based vector map from satellite images. Cartographic Journal, 39. 15-25.

https://doi.org/10.1179/caj.2002.39.1.15

Correspondence/contact details

Morton, D.

UK Centre for Ecology & Hydrology

Lancaster Environment Centre, Library Avenue, Bailrigg
Lancaster
Lancashire
LA1 4AP
UNITED KINGDOM

enquiries@ceh.ac.uk