Potentials and Limits of Comprehensive 2D Glacier Motion Estimation using Satellite SAR Data

In this paper, the potentials and limits of comprehensive 2D motion estimation of glaciers are discussed and illustrated by the example of the Taku glacier, which is the biggest glacier in the Juneau Icefield, Alaska. The motion maps are extracted by the feature tracking technique based on geo-coded high resolution TerraSAR-X images. The estimation results show that successfully deriving comprehensive 2D glacier motions filed using feature tracking by SAR images acquired from only one imaging geometry is hard to achieve, and in areas with a steep slope in the topography the 2D estimations are intrinsically accompanied with significant errors regarding the real magnitude of the velocity.     «

In this paper, the potentials and limits of comprehensive 2D motion estimation of glaciers are discussed and illustrated by the example of the Taku glacier, which is the biggest glacier in the Juneau Icefield, Alaska. The motion maps are extracted by the feature tracking technique based on geo-coded high resolution TerraSAR-X images. The estimation results show that successfully deriving comprehensive 2D glacier motions filed using feature tracking by SAR images acquired from only one imaging ge...     »