MONITORING ALPINE GLACIERS FROM CLOSE-RANGE TO SATELLITE SENSORS

Alpine Snow Cover and Glaciers in Relation to Altitude from Advanced Satellite Monitoring

Advanced methods of Landsat-TM data processing were used to map periodically the seasonal snow cover and glaciers. The test basins are located in western, eastern and southern Swiss Alps. In the basins of the rivers Rhône at Sion (3371 km2, 488-4634 m a.s.l.), Rhine at Felsberg (3249 km2, 562-3614 m a.s.l.) and Ticino at Bellinzona (1515 km2, 220-3402 m a.s.l.) relations were derived between th...

Rapid disintegration of Alpine glaciers observed with satellite data

Analyses of multispectral satellite data indicate accelerated glacier decline around the globe since the 1980s. By using digitized glacier outlines inferred from the 1973 inventory and Landsat Thematic Mapper (TM) satellite data from 1985 to 1999, we obtained area changes of about 930 Alpine glaciers. The 18% area reduction as observed for the period 1985 to 1999 (−1.3% a�1) corresponds to a se...

Alpine glaciers to disappear within decades ?

Surface Velocity of Swiss Alpine Glaciers from Ers Sar Interferometry

Differential SAR interferograms were computed over the Swiss Alps with ERS-1/2 Tandem data acquired between 1995 and 2000 from ascending and descending orbits and use of an external Digital Elevation Model (DEM). Comparison with the Swiss glacier inventory 2000 shows that winter interferograms with one day time interval have a generally high degree of coherence and are straightforward to identi...

Evaluation of Close-Range Photogrammetric Technique for Deformation Monitoring of Large-Scale Structures: A review

Close-range photogrammetry has been used in many applications in recent decades in various fields such as industry, cultural heritage, medicine and civil engineering. As an important tool for displacement measurement and deformation monitoring, close-range photogrammetry has generally been employed in industrial plants, quality control and accidents. Although close-range photogrammetric applica...