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Estimation of glacier ice extinction using long-wavelength airborne Pol-InSAR

Sharma, Jayanti and Hajnsek, Irena and Papathanassiou, Konstantinos and Moreira, Alberto (2013) Estimation of glacier ice extinction using long-wavelength airborne Pol-InSAR. IEEE Transactions on Geoscience and Remote Sensing, 51 (6), pp. 3715-3732. IEEE. DOI: 10.1109/TGRS.2012.2220855. ISSN 0196-2892.

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Abstract

In recent years there has been increased interest in using synthetic aperture radar (SAR) to study and monitor glaciers and ice sheets for glaciological and climate change research. This paper describes the estimation of ice extinctions through modeling of Pol-InSAR (polarimetric interferometric SAR) coherences as a combination of a surface contribution (from the snow-firn interface and wind-induced sastrugi features) and a volume response. Ground-to-volume scattering ratios derived from a novel polarimetric decomposition are used in conjunction with Pol-InSAR coherence magnitudes to invert the extinction of the ice layer. The inversion is performed for experimental airborne Pol-InSAR data at L- and P-band acquired by 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 facie are investigated, and validation is performed comparing ground penetrating radar data to SAR backscatter and extinction values.

Document Type:Article
Title:Estimation of glacier ice extinction using long-wavelength airborne Pol-InSAR
Authors:
AuthorsInstitution or Email of Authors
Sharma, JayantiDLR/HR
Hajnsek, IrenaDLR/HR, ETH Zurich
Papathanassiou, KonstantinosDLR/HR
Moreira, AlbertoDLR/HR
Date:June 2013
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:51
DOI:10.1109/TGRS.2012.2220855
Page Range:pp. 3715-3732
Editors:
EditorsEmail
IEEE, GRSSUNSPECIFIED
Publisher:IEEE
ISSN:0196-2892
Status:Published
Keywords:polarimetric SAR interferometry (Pol-InSAR), land ice, glacier, extinction
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Prosmart, Smart-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Dr.rer.nat. Irena Hajnsek
Deposited On:21 Jul 2010 14:56
Last Modified:12 Dec 2013 20:59

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