Techniques for recognizing the presence or potential development of landslides and the observable features that aid in identifying the types of slope movements and their probable causes are discussed. The techniques include (a) a review of topographic maps and geologic, pedologic, and engineering reports and maps; (b) the analysis of aerial photography and other forms of aerial images; and (c) preliminary field reconnaissance surveys. These three techniques complement one another and together form the basis of the preliminary analysis in a landslide investigation. The use of aerial techniques for evaluating landslides is emphasized because of their proven value and the unique advantages they offer. Aerial techniques can provide a three-dimensional overview of the terrain from which the interrelations existing among slope, drainage, surfce cover, rock type and sequence, and human activities on the landscape can be viewed and evaluated. In addition, the availability of new types of aerial imagery, including satellite, infrared, radar, and microwave radiometry, extend the advantages of this technique.

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 34-80
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00193489
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: May 26 1979 12:00AM