Up to now, satellite data with geometric definitions in the decametric sector, which have been available for around 20 years, have mainly been evaluated for less reliefed regions of the earth. The work deals with the special problems of evaluating satellite data for high mountains, using the example of generating maps of the current land covering for the area south of the Schliersee around the Rotwand summit in the Bavarian Alps. Data were available from the LANDSAT5-TM and IRS-1-C recording systems. Various thematic map sets are initially examined as to whether they are suitable for supporting or supplementing the satellite image analysis. In addition to the digital data on the 1 : 25000 topographic map (ATKIS preliminary stage), the existing map sets on geology, vegetation, hydrography / morphology and the forest inventory map are considered here. The suitability and necessity of various front-end stages is discussed on the basis of the mono-temporal classification of two LANDSAT-TM scenes from August 1985 and August 1992. The choice of geo-referencing method, the dealings with topography-induced lighting differences and correction possibilities against interferences by the atmosphere are treated here. The focus of the work lies in the following comparison ot two common analysis procedures, the thresholding method and the maximum-likelihood classification. Subsequently, a check is carried out on the basis of the LANDSAT-TM scene from August 1992 whether using satellite data from other recording periods in spring, late autumn and winter leads to an improvement in the analysis result. The project is concluded by proposals for further research approaches, the reference to digital orthophotographs as a practical supplement and recommendations for the evaluation of satellite data.
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Up to now, satellite data with geometric definitions in the decametric sector, which have been available for around 20 years, have mainly been evaluated for less reliefed regions of the earth. The work deals with the special problems of evaluating satellite data for high mountains, using the example of generating maps of the current land covering for the area south of the Schliersee around the Rotwand summit in the Bavarian Alps. Data were available from the LANDSAT5-TM and IRS-1-C recording sys...
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