LANDSAT APPLIED TO LANDSLIDE MAPPING

A variety of feature characteristic of rotational landslides may be identified on Landsat imagery. These include tonal mottling, tonal banding, major and secondary scraps, 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(0.8-1.1 mcrometers) is the most useful band for landslide recognition, due to accentuation of ponds and shadows. Examination of both bands 7 and 5(0.6-0.7 micrometers), 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 identifable. 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. /Author/

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  • Corporate Authors:

    American Society of Photogrammetry

    105 North Virginia Avenue
    Falls Church, VA  USA  22046
  • Authors:
    • Sauchyn, D J
    • Trench, N R
  • Publication Date: 1978-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00185406
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 3 1979 12:00AM