Land Cover Map 2000: technical information

Table 1. Description of the attributes of the LCM2000 vector dataset

Attribute

Description

Present in Level 2

Present in Level 3

SegIDUnique identifier code for each segment showing OS 100km square and sequential segment number eg TQ005232 (alphanumeric string).YY
BHSubDominant land cover type for each segment as a hierarchical code (WidespreadBH.LCMSubclass) eg 17.2 (float)YY
BHSubVarDominant land cover type for each segment as a hierarchical code (WidespreadBH.LCMSubclass.Variant) eg 17.2.1 (numeric delimited string)NY
PerPixListPer pixel list by percentage area, of the top five spectral subclasses within the segment eg Ab_a,65:Ab_b,20:Aw_c,10:Gi_b,4:Us_c,1NY
OpHistoryDescriptor detailing the processing history of each segment including image date(s) and numbers of KBC rules applied eg 11:4:0:0:0:0 (alphanumeric delimited string).YY
TotPixelsTotal number of pixels within the segment (Integer)YY
CorePixelsTotal number of pixels within the core area of the segment used to perform the maximum likelihood classifcation (Integer)YY

 

Table 2. Habitats, LCM2000 classes and Broad Habitat sub-classes for LCM2000

LCM Subclass (Level 2)

Subclass code*

Variants (Level 3)

Alpha-code

Variant code

Broad-leaved / mixed woodland1.1deciduousD1.1.1
mixedDm1.1.2
open birchDb1.1.3
scrubDs1.1.4
Coniferous woodland2.1conifersC2.1.1
felledCf2.1.2
new plantationCn2.1.3
Arable cereals4.1barleyAb4.1.1
maizeAm4.1.2
oatsAo4.1.3
wheatAw4.1.4
cereal (spring)Acs4.1.5
cereal (winter)Aba4.1.6
Arable horticulture4.2arable bare groundAba4.2.1
carrotsAc4.2.2
field beansAf4.2.3
horticultureAh4.2.4
linseedAl4.2.5
potatoesAp4.2.6
peasAq4.2.7
oilseed rapeAr4.2.8
sugar beetAs4.2.9
unknownAu4.2.1
mustardAx4.2.11
non-cereal (spring)Ans4.2.12
Non-rotational horticulture4.3orchardAdo4.3.1
arable grass (ley)Agl4.3.2
setaside (bare)Asb4.3.3
setaside (undifferentiated)Ase4.3.4
Improved grassland5.1intensiveGi5.1.1
grass (hay/silage cut)Gih5.1.2
grazing marshGim5.1.3
Setaside grassland5.2grass setasideGis5.2.1
Neutral grassland6.1rough grass (unmanaged)Grn6.1.1
grass (neutral/unimproved)Gn6.1.2
Calcareous grassland7.1calcareous (managed)Gc7.1.1
calcareous (rough)Grc7.1.2
Acid grassland8.1acidGa8.1.1
acid (rough)Gra8.1.2
acid with JuncusGaj8.1.3
acid Nardus/Festuca/MolinaGam8.1.4
Bracken9.1brackenGbr9.1.1
Dense dwarf shrub heath10.1dense (ericaceous)H10.1.1
gorseHg10.1.2
Open dwarf shrub heath10.2openHga10.2.1
Fen, marsh, swamp11.1swampFs11.1.1
fen/marshFm11.1.2
fen willowFw11.1.3
Bogs (deep peat)12.1bog (shrub)Bh12.1.1
bog (grass / shrub)Bhg12.1.2
bog (grass / herb)Bg12.1.3
bog (undifferentiated)Bo12.1.4
Water (inland)13.1water (inland)W13.1.1
Montane habitats15.1montaneZ15.1.1
Inland bare ground16.1semi-naturalIb16.1.1
despoiledId16.1.2
Suburban / rural developed17.1suburban / rural developedUs17.1.1
Continuous urban17.2urban residential / commercialU17.2.1
urban industrialUi17.2.2
Supra-littoral rock18.1rockSr18.1.1
Supra-littoral sediment19.1shingleSh19.1.1
shingle (vegetated)Shv19.1.2
duneSd19.1.3
dune shrubsSds19.1.4
Littoral rock20.1rockLr20.1.1
rock with algaeLra20.1.2
Littoral sediment21.1mudLm21.1.1
sandLs21.1.2
sand with algaeLsa21.1.3
Saltmarsh21.2saltmarshLsm21.2.1
saltmarsh (grazed)Lsg21.2.2
Sea / Estuary22.1seaWe22.1.1

Table 3. Metadata information for the LCM2000 25m raster dataset

 

Great Britain

Northern Ireland

Columns / Width (pixels)244007600
Rows / Height (pixels)484007200
Lower left easting (m)50000180000
Lower left northing (m)10000280000
Pixel size (m)2525
Coordinate systemBritish National GridIrish National Grid
ProjectionTransverse MercatorTransverse Mercator
SpheroidAiryAiry Modified 1849
DatumOSGB 1936Ireland 1965

Table 4. Metadata information for the 1km raster dataset

 

Great Britain

Northern Ireland

Columns / Width (pixels)700500
Rows / Height (pixels)1300500
Lower left easting (m)0*0
Lower left northing (m)0*0
Pixel size (m)10001000
Coordinate systemBritish National GridIrish  National Grid
ProjectionTransverse MercatorTransverse Mercator
SpheroidAiryAiry Modified 1849
DatumOSGB 1936Ireland 1965

 

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