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Multi-season satellite imagery (Landsat ETM+) from 1999-2001 were used in conjunction with digital elevation model (DEM) derived datasets (e.g. elevation, landform, aspect, etc.) to model natural and semi-natural vegetation. The minimum mapping unit for this dataset is approximately 1 acre. Landcover classes are drawn from NatureServe's Ecological System concept, with 109 of the 125 total classes mapped at the system level. For the majority of classes, a decision tree classifier was used to discriminate landcover types, while a minority of classes (e.g. urban classes, sand dunes, burn scars, etc.) were mapped using other techniques. Twenty mapping areas, each characterized by similar ecological and spectral characteristics,...
Types: Downloadable;
Tags: BLM,
Bureau of Land Management,
DOI,
Geospatial,
Management, All tags...
NGB 2011,
Northern Great Basin,
REA,
Rapid Ecoregional Assessment,
imageryBaseMapsEarthCover,
landcover,
vegetation cover, Fewer tags
Multi-season satellite imagery (Landsat ETM+) from 1999-2001 were used in conjunction with digital elevation model (DEM) derived datasets (e.g. elevation, landform, aspect, etc.) to model natural and semi-natural vegetation. The minimum mapping unit for this dataset is approximately 1 acre. Landcover classes are drawn from NatureServe's Ecological System concept, with 109 of the 125 total classes mapped at the system level. For the majority of classes, a decision tree classifier was used to discriminate landcover types, while a minority of classes (e.g. urban classes, sand dunes, burn scars, etc.) were mapped using other techniques. Twenty mapping areas, each characterized by similar ecological and spectral characteristics,...
Types: Downloadable;
Tags: BLM,
Bureau of Land Management,
DOI,
Geospatial,
Management, All tags...
NGB 2011,
Northern Great Basin,
REA,
Rapid Ecoregional Assessment,
imageryBaseMapsEarthCover,
landcover,
vegetation cover, Fewer tags
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