Abstract

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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