Accession Number : ADP002007

Title :   A Technique for Mapping Environmental Change Using Digital LANDSAT Data,


Personal Author(s) : Mussakowski,R. S.

Report Date : JUN 1982

Pagination or Media Count : 3

Abstract : Digital LANDSAT data is well suited to the monitoring of certain aspects of environmental change because of the comprehensive coverage of individual frames (185 km x 185 km), the repetitive nature of the coverage (on an 18-day cycle), a ground resolution (79 m x 59 m) adequate to relatively broad classification, and the multispectral character of the data, which is digitally recorded and thus readily amendable to analysis using current computer techniques. In order to develop a LANDSAT-based procedure for mapping environmental change, variations in vegetation density were analyzed and compared on LANDSAT scenes from different years. The area selected for study was the region surrounding the city of Sudbury, an industrial, mining and smelting centre in the province of Ontario, Canada. The terrain of the site is glaciated Precambrian shield covered by a thin layer of drift. The site is located in the Great Lakes-St. Lawrence forest region.

Descriptors :   *Vegetation, Environments, Modification, Variations, Aerial photography, Scientific satellites, Mapping, Canada

Distribution Statement : APPROVED FOR PUBLIC RELEASE