Digital terrain models as a tool for glacier studies

Abstract

Digital terrain models (DTM) are a very important tool for all sorts of glacier studies and serve as a basis for many applications. These new technologies have been applied in an investigation of the Vaughan Lewis Icefall, Juneau Icefield, Alaska. A DTM has been produced by means of photogrammetric measurements, and a glacier-flow velocity of up to 5.70 m d-1 in the steepest part has been derived. The possibilities for the interpretation of the glacier topography have been significantly improved by using digital image-processing algorithms for the visualization of the DTM. -from Authors