Interpretation of Pol-InSAR Signatures from Glaciers and Ice Sheets at Different Frequencies

Konferenz: EUSAR 2016 - 11th European Conference on Synthetic Aperture Radar
06.06.2016 - 09.06.2016 in Hamburg, Germany

Tagungsband: EUSAR 2016

Seiten: 6Sprache: EnglischTyp: PDF

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Fischer, Georg; Parrella, Giuseppe; Papathanassiou, Konstantinos (DLR, Microwaves and Radar Institute, Germany)
Hajnsek, Irena (DLR, Microwaves and Radar Institute, Germany & ETH Zurich, Institute of Environmental Engineering, Switzerland)

Based on the advances of recent Pol-InSAR studies of glaciers and ice sheets and the latest progress in understanding of polarimetric signatures from snow and firn, the relationship between glacier subsurface structure and Pol-InSAR measurements at different frequencies is revisited. The investigations are supported by a new airborne interferometric and polarimetric SAR dataset, acquired 2015 in Greenland, and available GPR data. First results indicate strong volume decorrelation and an interferometric coherence behavior that raises the necessity to introduce subsurface layers into scattering models for the percolation zone of ice sheets.