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Landsat applied to landslide mappingA variety of features characteristic of rotational landslides may be identified on Landsat imagery. These include tonal mottling, tonal banding, major and secondary scarps, and ponds. Pseudostereoscopic viewing of 9 by 9 in. transparencies was useful for the detailed identification of landslides, whereas 1:250,000 prints enlarged from 70 mm negatives were most suitable for regional analysis. Band 7 is the most useful band for landslide recognition, due to accentuation of ponds and shadows. Examination of both bands 7 and 5, including vegetation information, was found to be most suitable. Although, given optimum terrain conditions, some landslides in Colorado may be recognized, many smaller landslides are not identifiable. Consequently, Landsat is not recommended for detailed regional mapping, or for use in areas similar to Colorado, where alternative (aircraft) imagery is available. However, Landsat may prove useful for preliminary landslide mapping in relatively unknown areas.
Document ID
19780057282
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sauchyn, D. J.
(Colorado Univ. Denver, CO, United States)
Trench, N. R.
(Colorado, University Boulder, Colo., United States)
Date Acquired
August 9, 2013
Publication Date
June 1, 1978
Publication Information
Publication: Photogrammetric Engineering and Remote Sensing
Volume: 44
Subject Category
Earth Resources And Remote Sensing
Accession Number
78A41191
Funding Number(s)
CONTRACT_GRANT: NAS5-20914
Distribution Limits
Public
Copyright
Other

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