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Abstract
Framework Land Cover Classification Schema Development in CaliforniaTrack: Ecology, Archaeology, and Conservation
Author(s): David Hansen, Barbara Simpson
The U.S. Bureau of Reclamation and the U.S. Fish and Wildlife Service are developing a land cover database for the Central Valley of California. The area has a variety of land cover or land use classification schemes developed by state, federal, and private agencies that do not uniformly cover the landscape. Our schema will provide a uniform map legend that crosses between the different data sources. This effort will be consistent with the National Vegetation Classification Standard being developed by the Federal Geographic Data Committee.
IMAGINE and ArcInfo will be used to produce spectrally similar polygons of satellite imagery for comparing and assigning polygon habitat labels based on the disparate data sources. The habitat polygon labels will be managed as an Access database, which will include land cover assignments from all the original sources. Not all classifications from every source will be carried forward into the new classification, but they will be maintained in tables associated with the resulting coverage. This provides the basis for determining the level of confidence in label assignments, particularly for areas with limited source data.
David Hansen
U.S. Bureau of Reclamation
2800 Cottage Way
Sacramento, CA 95825-1898
USA
Phone: (916)978-5268
E-mail: dhansen@mp.usbr.gov