Using Landsat TM to evaluate erosion by mapping landuse changes in an urbanizing watershed

Conference · Mon Feb 01 00:00:00 EST 1993 · Geological Society of America, Abstracts with Programs; (United States)

OSTI ID:5973139

Haney, B M; Morgan, K M ^[1]; Busbey, A B ^[2]; Newland, L W ^[3]

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1. Texas Christian Univ., Fort Worth, TX (United States). Center for Remote Sensing
2. Texas Christian Univ., Fort Worth, TX (United States). Dept. of Geology
3. Texas Christian Univ., Fort Worth, TX (United States). Environmental Sciences Program

Multi-temporal Landsat TM images were utilized in a Geographic Information System (GIS) to evaluate changes in erosion of an urbanizing watershed in the Dallas-Fort Worth area. The images were classified with unsupervised (maximum likelihood), and supervised (training set) technique to provide the landuse factor for use in the Soil Conservation Service Universal Soil Loss Equation (USLE). Additional USLE data layers in the GIS included percent slope and length, soil erodibility, and the rainfall factor. The multi-year, multi-season images were prepared using ERDAS, classified with MultiSPEC software and employed in a GRASS-GIS. The study is a follow up to previous work. In an earlier study, a summer 1984 image was used to determine changes in erosion from a 1980 field study of the watershed. This study reevaluated the 1984 image as a baseline and compared it to 1991 fall and 1992 spring images of the watershed. Results show the effect of landuse changes on the predicted soil losses in the Lake Arlington watershed from 1984--1992.

• OSTI ID: 5973139
• Report Number(s): CONF-9303212-; CODEN: GAAPBC
• Journal Information: Geological Society of America, Abstracts with Programs; (United States), Vol. 25:1; Conference: 27. annual Geological Society of America (GSA) South-Central Section meeting, Fort Worth, TX (United States), 15-16 Mar 1993; ISSN 0016-7592
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
54 ENVIRONMENTAL SCIENCES
TEXAS
URBAN AREAS
AERIAL SURVEYING
LAND USE
SOIL CONSERVATION
AERIAL MONITORING
EROSION
GROUND COVER
LAND POLLUTION CONTROL
LAND RESOURCES
LANDSAT SATELLITES
REMOTE SENSING
WATERSHEDS
CONTROL
DEVELOPED COUNTRIES
MONITORING
NORTH AMERICA
POLLUTION CONTROL
RESOURCE CONSERVATION
RESOURCES
SATELLITES
USA
580000* - Geosciences
540210 - Environment
Terrestrial- Basic Studies- (1990-)