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Summary:
Lansat-5 Thematic Mapper (Landsat-5 TM) images are evaluated for their use to upgrade a land-cover/land-use database in Switzerland. The Hectometric Information Grid or Hectaraster consists of a database, covering all of Switzerland according to 12 Level-I landcover/land-use categories. In this study Level-I and Level-II ¿̐ưbuild-up¿̐ư and ¿̐ưforest¿̐ư classes are computed using Landsat-5 TM spectral data of the study area of Switzerland. A procedure has been developed that automatically determines the dominant land-cover/land-use inside each hectare or ¿̐ưhectel¿̐ư of the Hectaraster. The newly created Hectaraster results in a more accurate representation of the actual land-cover/land-use situation in the Nyon test area, as compared to the traditional 1972 Hectaraster. Also, more detail is available, since Level-II categories have been added to the Level-I land-cover/land-use categories.
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Reproduction Note:
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1992. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
