applications division canada centre for remote sensing natural resources canada glc 2000 land cover...

Applications DivisionCANADA CENTRE FOR REMOTE SENSING

Natural Resources Canada

GLC 2000 Land Cover Database of North America

Workshop GLC 2000 “Final Results”Ispra, Italy 21-24/03/2003

[email protected]



TABLE 1. Conversion table

LCCS Code

20089-O1 / 20089-O2 A3A10B2XXD1E1-O1 / A3A10B2XXD1E1-O2 1 2Tropical or Sub-tropical Broadleaved Evergreen Forest - Closed Canopy

20090-O1 / 20090-O2 A3A10B2XXD1E2-O1 / A3A10B2XXD1E2-O2 2 2Tropical or Sub-tropical Broadleaved Deciduous Forest - Closed Canopy

20090-O5 / 20090-O7 A3A10B2XXD1E2-O5 / A3A10B2XXD1E2-O7 3 4Temperate or Sub-polar Broadleaved Deciduous Forest - Closed Canopy

20092-O5 / 20092-O7 A3A10B2XXD2E1-O5 / A3A10B2XXD2E1-O7 4 1Temperate or Sub-polar Needleleaved Evergreen Forest - Closed Canopy

20134-1-O5 / 20134-1-O7 A3A11B2XXD2E1-A12-O5 / A3A11B2XXD2E1-A12-O7 5 1Temperate or Sub-polar Needleleaved Evergreen Forest - Open Canopy

20092-O5 / 20093-O5 / 20093-O7A3A10B2XXD2E1-O5 / A3A10B2XXD2E2-O5 / A3A10B2XXD2E2-O7 6 5

Temperate or Sub-polar Needleleaved Mixed Forest - Closed Canopy

20088-O5 / 20088-O7 / 20091-O5A3A10B2XXD1-O5 / A3A10B2XXD1-O7 / A3A10B2XXD2-O5 7 5

Temperate or Sub-polar Mixed Broadleaved or Needleleaved Forest - Closed Canopy

20130-1-O5 / 20130-1-O7 / 20133-1-O5

A3A11B2XXD1-A12-O5 / A3A11B2XXD1-A12-O7 / A3A11B2XXD2-A12-O5 8 5

Temperate or Sub-polar Mixed Broaddleleaved or Needleleaved Forest - Open Canopy

21436-05/21436-07 A8A10-O5 / A8A10-O7 20 8Subpolar Needleleaved Evergreen Forest Open Canopy - lichen understory

20152-O5 / 20152-O7 A4A10B3XXD1E1-O5 / A4A10B3XXD1E1-O7 9 7Temperate or Subpolar Broadleaved Evergreen Shrubland - Closed Canopy

20174-1-O5 / 20174-1-O7 A4A11B3XXD1E2-A12-O5 / A4A11B3XXD1E2-A12-O7 10 6Temperate or Subpolar Broadleaved Deciduous Shrubland - Open Canopy

20176-1-O5 / 20176-1-O7 A4A11B3XXD2E1-A12-O5 / A4A11B3XXD2E1-A12-O7 11 7Temperate or Subpolar Needleleaved Evergreen Shrubland - Open Canopy

20172-2-O5 / 20172-2-O7 / 20175-2-O5

A4A11B3XXD1-A12B10-O5 / A4A11B3XXD1-A12B10-O7 / A4A11B3XXD2-A12B10-O5 12 7

Temperate or Sub-polar Mixed Broadleaved and Needleleaved Dw arf -Shrubland - Open Canopy

20033-05/20033-07 A6A10-05/A6A10-07 13 10 Temperate or Subpolar Grassland

20033-05/20033-07/20052-9032 A6A10-05/A6A10-07/A3A14-A16 14 8 Temperate or Subpolar Grassland w ith a Sparse Tree Layer

20033-05/20033-07/20055-9032 A6A10-05/A6A10-07/A4A14-A16 15 8 Temperate or Subpolar Grassland w ith a Sparse Shrub Layer

20033-08/20055-9032 A6A10-08/A4A14-A16 16 16 Polar Grassland w ith a Sparse Shrub Layer

20033-08/20056-9033 A6A10-08/A4A14B3-A16B10 17 16 Polar Grassland w ith a Dw arf -Sparse Shrub Layer

10025 A3 18 12 Cropland

10025/20055 A3/A4A14 19 12 Cropland and Shrubland/w oodland

6004/20055 A2/A4A14 21 7Unconsolidated Material Sparse Vegetation (old burnt or other disturbance)

5001 A1 22 13 Urban and Built-up

8001/6004 A1/A2 23 17 Consolidated Rock Sparse Vegetation

8001 A1 24 17 Water bodies

6004 25 16 Burnt area (resent burnt area)

8005/8008 A2/A3 26 15 Snow and Ice

40007 A3/A13 27 11 Wetlands

40019 A2/A13 28 16 Herbaceous Wetlands

LCCS Level NVCS-FGDC IGBP USER_CLASS_NAME

Legend conversion table for NVSC (FGDC), LCCS and IGBP



R:NIR; G:SWIR; B:RED Classification

Accuracy assessment: Building confidence



Landsat



Quantitative accuracy assessment

Reference data



Source: Centre de foresterie des LaurentidesService canadien des forêts



Assessment of reference data



0.00%

0.50%

1.00%

1.50%

2.00%

2.50%

16 26 36 46 56 66 76 86 96

Distribution of homogeneity in 1km pixel over Canada

Dominant fraction in 1km pixel



GLC 2000

0%

20%

40%

60%

80%

100%

0% 20% 40% 60% 80% 100%

Dominant Fraction

Acc

ura

cy

IGBP

0%

20%

40%

60%

80%

100%

0% 20% 40% 60% 80% 100%

Dominant Fraction

Acc

ura

cy

UMd

0%

20%

40%

60%

80%

100%

0% 20% 40% 60% 80% 100%

Dominant Fraction

Acc

ura

cy

UMB

0%

20%

40%

60%

80%

100%

0% 20% 40% 60% 80% 100%

Dominant Fraction

Acc

urac

y



y = 1.4156x-0.1164

R2 = 0.9753

40%

50%

60%

70%

80%

90%

100%

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000

Resolution (m)

Do

min

ant

frac

tio

n



GLC 2000 NA IGBP UMB UMD

Forest classes 45.68% 48.06% 42.23% 53.95%Evergreen Needleleaf Fores t 22.45% 17.45% 14.38% 10.27%Evergreen Broadleaf Fores t 3.50% 2.64% 4.89% 2.54%Deciduous Needleleaf Fores t 0.00% 0.00% 0.10% 0.00%Deciduous Broadleaf Fores t 5.38% 7.38% 4.47% 4.18%Mixed Fores t 5.50% 13.04% 10.36% 5.55%Woody Savannas 8.85% 7.55% 8.03% 31.41%

Non-forest classes 54.32% 51.94% 57.77% 46.05%Closed Shrublands 1.77% 2.45% 0.80% 7.75%Open Shrublands 18.25% 11.49% 23.62% 13.42%Grass lands 7.75% 8.69% 10.73% 9.80%Perm anent Wetlands 0.28% 1.46% 0.49% 0.00%Croplands 14.31% 17.53% 15.74% 9.21%Urban and Built-Up 0.45% 0.43% 0.41% 0.43%Snow and Ice 2.93% 1.70% 1.58% 0.00%Barren or Sparsely Vegetated 8.56% 8.18% 4.41% 5.45%

Areal comparison

·The IGBP Global land cover classification produced by U.S. Geological Survey for the International Geosphere-Biosphere Programme IGBP (Loveland et al., 2000);

·The UMd global land cover classification produced by University Maryland (Hansen et al., 2000);

·The UMB MODIS Global land cover classification produced by University Boston (Hodges 2001); and

·GLC2000_NA North America 2000 Land Cover database, here presented



Agreement [%] KappaGLC2000_NA - IGBP 78.85% 0.554GLC2000_NA - UMB 79.03% 0.548GLC2000_NA - UMD 78.17% 0.491

Agreement in depicting the forest area over North America among analysed land cover maps

Per pixel comparison

GLC 2000NA -IGBP

GLC 2000NA -UMB

GLC 2000NA -UMD

Agreement

Disagreement non-forest / forest Disagreement forest / non-forest



Outputs

Papers in progress:

Latifovic, R., Zhu, Z., Cihlar,J., Giri, C., and Olthof, I. (2003) Land Cover Mapping of North America - Global Land Cover 2000

Latifovic, R., Olthof, I., and Fraser R., Assessing the accuracy of remote sensing based large scaled land cover data

Database:

NRCan and USGS (2003) Land Cover Database of North America 2000 ftp://ftp.ccrs.nrcan.gc.ca/ftp/ad/EMS/Landcover2000/



Poster:



Acknowledgements

We also gratefully acknowledge the support of the Canadian Space Agency for this study, the Centre national d’etudes spatiales and European Union for the provision of 2000 VGT data and National Aeronautic and Space Administration for the provision of some ETM+ scenes as part of Satellite Information for the Landcover of Canada (SILC) project.

CCRS Team

Rasim LatifovicCihlar JosefJean BeaubienIan OlthofRobert Fraser

Zhi-Liang Zhu Chandra Giri

USGS Team

applications division canada centre for remote sensing natural resources canada glc 2000 land cover...

Documents

accuracy of remote sensing

canada dominant fraction

igbp slide

pixel slide

caftpademslandcover2000

building confidence

analysed land cover

na north america