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Long-wavelength Pol-InSAR for glacier ice extinction estimation

Sharma, Jayanti and Hajnsek, Irena and Papathanassiou, Konstantinos (2010) Long-wavelength Pol-InSAR for glacier ice extinction estimation. In: Proceeding of the European Conference on Synthetic Aperture Radar (EUSAR), pp. 325-328. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2010-06-07 - 2010-06-10, Aachen, Germany.

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Abstract

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.

Document Type:Conference or Workshop Item (Speech)
Title:Long-wavelength Pol-InSAR for glacier ice extinction estimation
Authors:
AuthorsInstitution or Email of Authors
Sharma, JayantiUNSPECIFIED
Hajnsek, IrenaUNSPECIFIED
Papathanassiou, KonstantinosUNSPECIFIED
Date:9 June 2010
Journal or Publication Title:Proceeding of the European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:Yes
In ISI Web of Science:No
Page Range:pp. 325-328
Publisher:VDE Verlag GmbH
Status:Published
Keywords:Pol-InSAR, Extinction, E-SAR, Land ice, Austfonna, Svalbard, polarimetry, glacier
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Aachen, Germany
Event Type:international Conference
Event Dates:2010-06-07 - 2010-06-10
Organizer:VDE
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
Microwaves and Radar Institute
Deposited By: Jayanti Sharma
Deposited On:23 Mar 2010 16:16
Last Modified:08 May 2014 23:21

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