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The application of Landsat data to mapping avalanche hazardsTwo test areas, representing a variety of avalanche hazards, were selected in the San Juan Mountains of Colorado. Midwinter Landsat digital data were analyzed using a clustering technique, and the results compared to 1:24,000 scale maps of avalanche hazards derived from air photo interpretation and field surveys. Confined avalanches were readily identified because of the high contrast between the snow covered avalanche track and the adjacent forested slopes. Unconfined avalanches could not be identified without supplementary topographic data. Spatial characteristics were of primary importance in delineating avalanche tracks. Spatial resolution was the limiting factor in avalanche detection. Landsat data should prove useful for rapid reconnaissance mapping of avalanche hazards, particularly in the absence of other data sources.
Document ID
19790052494
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Waterman, S.
(Colorado, University Boulder, Colo., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: Canadian Symposium on Remote Sensing
Location: British Columbia
Country: Canada
Start Date: August 28, 1978
End Date: August 31, 1978
Accession Number
79A36507
Funding Number(s)
CONTRACT_GRANT: NGL-06-003-200
Distribution Limits
Public
Copyright
Other

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