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BALTIMORE-WASHINGTON SPATIAL DYNAMICS AND HUMAN IMPACTS DATABASE
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Description:
The Baltimore-Washington Spatial Dynamics and Human Impacts data set is an integrated and flexible temporal urban land characteristics database for the Baltimore-Washington metropolitan area. The compilation of this data is a collaborative effort between the U.S. Geological Survey and the University of Maryland Baltimore County. The database provides a visual and historical perspective of the urban growth experienced in the area between 1792 and 1992. The multi-theme temporal database includes urban development, principle transportation, hydrography, census and legal/statistical boundaries. Temporal urban mapping reconstructs past landscapes by incorporating historic maps, census statistics, and commerce records to generate a progressive geo-referenced picture of the past changes in a region. Contemporary mapping focuses on the use of remotely sensed data, existing digital land use data, digital census information, and a variety of earth science infrastructure data, such as Digital Line Graphs, Digital Elevation Models, and key ancillary demographic information. The resulting database of temporal urban demographic changes provides an ideal source of test data and information for both urban geographers and global change research scientists. Metadata link: http://edcwww2.cr.usgs.gov/umap/htmls/meta1992.html