The Evolution Of A Glacier Surge Observed With The Ers Satellites
A time series of ERS-1/2 SAR data from September 1991 to September 1998 was used to monitor the complete surge cycle of Monacobreen in Northwest Svalbard. Significant information for the study of this glacier was provided to glaciologists by the analysis of the backscattering coefficient images (in...
| Main Authors: | , , , |
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.20.6297 http://earth.esa.int/pub/ESA_DOC/gothenburg/154stroz.pdf |
| Summary: | A time series of ERS-1/2 SAR data from September 1991 to September 1998 was used to monitor the complete surge cycle of Monacobreen in Northwest Svalbard. Significant information for the study of this glacier was provided to glaciologists by the analysis of the backscattering coefficient images (in particular for the position and the crevasses of the front of the glacier), by the use of differential SAR interferometry in descending and ascending mode to retrieve displacement and height maps, and by applying coherence and feature tracking where surge velocities exceed the regime within which interferometric phase could be usefully interpreted. The result for Monacobreen is a complete map of temporal and spatial velocity structure from the beginning of the surge to its end. |
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