Dull adnabod

Dynodydd

EXT_DS114820

Teitl Amgen

• Landcover Map 2000
• Landcover Map 2007

Laith Metadata

English

Datganiad

Land Cover Map 2000 was created based on information from JNCC's Broad Habitats. Instead of representing the land surface as regular sized pixels, OBIA considers the land surface as a collection of discrete irregular objects such as forests, lakes, urban areas and fields. Land cover objects for LCM2000 were derived from image segments and were assigned land cover values according to the pixel distributions within. These classifications were then refined using contextual and ancillary information. NRW only has a segment of the data and not the whole of GB. This segment covers, the whole of wales, cross boarder catchments and coastal areas around the Bristol Channel. The principle difference between LCM2007 and LCM2000 is the source of land cover parcels. LCM2007 parcels come from generalised digital cartography refined with image segments, whereas LCM2000 uses only image segments. The LCM2007 data uses cartographic boundaries accurately delineate real-world land cover objects (e.g. lakes, fields, settlements, industrial areas, semi-natural areas). This improves the spatial accuracy of LCM2007 over LCM2000. The accurate delineation of real-world objects also helps to clarify the spectral properties of the land surface and therefore also improves thematic accuracy. NRW only has a segment of the data and not the whole of GB. This segment covers, the whole of wales, cross boarder catchments and coastal areas around the Bristol Channel.

Gwybodaeth ychwanegol

For further information about these 3rd party datasets see the UK Centre for Ecology and Hydrology Website: Land Cover Map 2000: https://www.ceh.ac.uk/services/land-cover-map-2000 Land Cover Map 2007: https://www.ceh.ac.uk/services/land-cover-map-2007

Rhychwant

Rhychwant

Hyd

Wales (WLS)

N

W

E

S

 

Dosbarthiad

Ansawdd

Allweddeiriau

System Cyfeirio Gofodol

Cynnwys

Cyfyngiadau