EarthWorks Geospatial Catalog

MODIS Global Land Cover (MOD12Q1 2001001 V004) (IGBP Classification Scheme)

Description
This raster grid dataset consists of MODIS (Moderate-resolution Imaging Spectroradiometer) land cover data for the calendar year 2001 classified according to the IGBP (International Geosphere-Biosphere Programme) global vegetation classification scheme. The data are reprojected mosaic exports from NASA TERRA/MODIS HDF-EOS MOD12Q1 V004 products. This version of the data is in the Plate Carr???e projection at 30 Arc-second resolution. [CAVEAT: Plate Carr???e is not an Equal Area Projection.] The original MODIS data was reprojected and repackaged as 8-bit binary files by Boston University's Department of Geography. The binary file was then converted to an ESRI Grid file by the Harvard Geospatial Library team. The Land Cover Classification product, MOD12Q1, identifies 17 classes of land cover in the International Geosphere-Biosphere Programme (IGBP) global vegetation classification scheme. This scheme includes 11 natural vegetation classes, 3 developed land classes, one of which is a mosaic with natural vegetation, permanent snow or ice, barren or sparsely vegetated, and water. Additional Science Data Set layers for other classification schemes include the University of Maryland modification of the IGBP scheme, the MODIS LAI/fPAR (MOD15) scheme, and the MODIS Net Primary Production (MOD17) scheme. These classes are distinguished with a supervised decision tree classification method. The MOD12 classification schemes are multitemporal classes describing land cover properties as observed during the year (12 months of input data). Successive production of this "annual" product allows us to make new land cover maps with increasing accuracies as both classification techniques and the training site database mature. For land cover change, users should use the Vegetation Cover Conversion product, MOD44, or the Land Cover Dynamics product, MOD12Q2.
Publisher
LP DAAC User Services, U.S. Geological Survey
Year
2004
Held by
Harvard
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