Long-wavelength Pol-InSAR for glacier ice extinction estimation
In recent years there has been increased interest in using synthetic aperture radar (SAR) to study and monitor glaciers for climate change research. This paper describes the estimation of ice extinctions through modelling of Pol-InSAR (polarimetric interferometric SAR) coherences as a combination of...
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ftdlr:oai:elib.dlr.de:63750 2024-05-19T07:37:52+00:00 Long-wavelength Pol-InSAR for glacier ice extinction estimation Sharma, Jayanti Hajnsek, Irena Papathanassiou, Konstantinos 2010-06-09 application/pdf https://elib.dlr.de/63750/ https://elib.dlr.de/63750/2/jsharma_eusar2010_published_version.pdf en eng VDE Verlag GmbH https://elib.dlr.de/63750/2/jsharma_eusar2010_published_version.pdf Sharma, Jayanti und Hajnsek, Irena und Papathanassiou, Konstantinos (2010) Long-wavelength Pol-InSAR for glacier ice extinction estimation. In: Proceeding of the European Conference on Synthetic Aperture Radar (EUSAR), Seiten 325-328. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2010-06-07 - 2010-06-10, Aachen, Germany. Radarkonzepte Institut für Hochfrequenztechnik und Radarsysteme Konferenzbeitrag PeerReviewed 2010 ftdlr 2024-04-25T00:16:58Z In recent years there has been increased interest in using synthetic aperture radar (SAR) to study and monitor glaciers for climate change research. This paper describes the estimation of ice extinctions through modelling of Pol-InSAR (polarimetric interferometric SAR) coherences as a combination of a surface contribution (from the snow-firn interface and wind-induced features) and a volume response. Ground-to-volume scattering ratios derived from a novel polarimetric decomposition are used in conjunction with Pol-InSAR interferometric coherence magnitudes to invert the extinction of the ice layer. The inversion is performed with experimental airborne Pol-InSAR data at L- and P-band collected using DLR's E-SAR system over the Austfonna ice cap in Svalbard, Norway as part of the 2007 ICESAR campaign. Extinction-dependencies on frequency and glacier zone are investigated, and validation is performed comparing P-band sounder data to inverted extinction values. Conference Object Austfonna glacier glacier Ice cap Svalbard German Aerospace Center: elib - DLR electronic library |
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German Aerospace Center: elib - DLR electronic library |
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English |
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Radarkonzepte Institut für Hochfrequenztechnik und Radarsysteme |
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Radarkonzepte Institut für Hochfrequenztechnik und Radarsysteme Sharma, Jayanti Hajnsek, Irena Papathanassiou, Konstantinos Long-wavelength Pol-InSAR for glacier ice extinction estimation |
topic_facet |
Radarkonzepte Institut für Hochfrequenztechnik und Radarsysteme |
description |
In recent years there has been increased interest in using synthetic aperture radar (SAR) to study and monitor glaciers for climate change research. This paper describes the estimation of ice extinctions through modelling of Pol-InSAR (polarimetric interferometric SAR) coherences as a combination of a surface contribution (from the snow-firn interface and wind-induced features) and a volume response. Ground-to-volume scattering ratios derived from a novel polarimetric decomposition are used in conjunction with Pol-InSAR interferometric coherence magnitudes to invert the extinction of the ice layer. The inversion is performed with experimental airborne Pol-InSAR data at L- and P-band collected using DLR's E-SAR system over the Austfonna ice cap in Svalbard, Norway as part of the 2007 ICESAR campaign. Extinction-dependencies on frequency and glacier zone are investigated, and validation is performed comparing P-band sounder data to inverted extinction values. |
format |
Conference Object |
author |
Sharma, Jayanti Hajnsek, Irena Papathanassiou, Konstantinos |
author_facet |
Sharma, Jayanti Hajnsek, Irena Papathanassiou, Konstantinos |
author_sort |
Sharma, Jayanti |
title |
Long-wavelength Pol-InSAR for glacier ice extinction estimation |
title_short |
Long-wavelength Pol-InSAR for glacier ice extinction estimation |
title_full |
Long-wavelength Pol-InSAR for glacier ice extinction estimation |
title_fullStr |
Long-wavelength Pol-InSAR for glacier ice extinction estimation |
title_full_unstemmed |
Long-wavelength Pol-InSAR for glacier ice extinction estimation |
title_sort |
long-wavelength pol-insar for glacier ice extinction estimation |
publisher |
VDE Verlag GmbH |
publishDate |
2010 |
url |
https://elib.dlr.de/63750/ https://elib.dlr.de/63750/2/jsharma_eusar2010_published_version.pdf |
genre |
Austfonna glacier glacier Ice cap Svalbard |
genre_facet |
Austfonna glacier glacier Ice cap Svalbard |
op_relation |
https://elib.dlr.de/63750/2/jsharma_eusar2010_published_version.pdf Sharma, Jayanti und Hajnsek, Irena und Papathanassiou, Konstantinos (2010) Long-wavelength Pol-InSAR for glacier ice extinction estimation. In: Proceeding of the European Conference on Synthetic Aperture Radar (EUSAR), Seiten 325-328. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2010-06-07 - 2010-06-10, Aachen, Germany. |
_version_ |
1799477256300527616 |