Abstract
National Urban Landscape Change Monitoring Land-Use Trend Analysis Track: Modeling Author(s): Kathleen Casey, Ben Sherrouse, David Hester The research objective is to determine whether three different types of historical geodatasets will depict a realistic portrayal of temporal United States urban landscape change. U.S. Geological Survey (USGS) Geographic Information Retrieval and Analysis System (GIRAS), circa 1977, USGS National Land Cover Data (NLCD 1992), and 2000 U.S. Census Bureau Urban Areas (UA) geodatasets are used for urban landscape change detection in the Bureau of Economic Analysis Austin-Round Rock and San Antonio, Texas Economic Areas. Disparate data collection methodologies, scales, and file formats require conversion of these three geodatasets to a compatible format and classification scheme. An urban mask is applied over time with the assumption that pixels classified as urban would remain urban in subsequent timeframes. USGS research results show that this change detection methodology may be useful for monitoring urbanization rates, trends, patterns, and human-induced land transformations. Kathleen Casey U.S. Geological Survey Rocky Mountain Geographic Science Center PO Box 24056, MS 516 Denver Federal Center, Bldg. 810 Denver , CO 80225 US Phone: 303-202-4331 Fax: 303-202-4354 E-mail: kacasey@usgs.gov Ben Sherrouse U.S. Geological Survey RMGSC P.O. Box 25046 MS 516 Denver Federal Center, Bldg. 810 Denver , CO 80225 US Phone: 303-202-4072 Fax: 303-202-4354 E-mail: bcsherrouse@usgs.gov David Hester U.S. Geological Survey Rocky Mountain Geographic Science Center P.O. Box 25046 MS 516 Denver Federal Center, Bldg. 810 Denver , CO 80225 US Phone: 303-202-4318 Fax: 303-202-4354 E-mail: dhester@usgs.gov |
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