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Estimation of the Surface Velocity Field of Temperate Glaciers Using Airborne SAR Interferometry

Prats, Pau and Andres, Christian and Scheiber, Rolf and Reigber, Andreas and Horn, Ralf (2008) Estimation of the Surface Velocity Field of Temperate Glaciers Using Airborne SAR Interferometry. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR), p. 4. VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2008-06-02 - 2008-06-05, Friedrichshafen, Germany. ISBN 978-3-8007-3084-1.

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Abstract

This paper presents a methodology to process airborne interferometric SAR data to measure surface velocity fields of temperate glaciers. First, a solution based on multi-squint is proposed to estimate residual motion errors (inaccuracies of the navigation system on the order of a few centimeters) in the case of non-stationary scenes. Afterwards, an efficient methodology to derive surface velocity fields with airborne systems is expounded, where the line-of-sight displacement is estimated using differential interferometry, and the along-track component by estimating the azimuth coregistration offsets. The necessary steps to finally obtain the 3D surface velocity field are also presented, as well as the possibility to combine different acquisition geometries. Airborne interferometric SAR data acquired by the Experimental SAR system of DLR over the Aletsch glacier, located in the Swiss Alps, are used to evaluate the performance of the proposed approach.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Estimation of the Surface Velocity Field of Temperate Glaciers Using Airborne SAR Interferometry
Authors:
AuthorsInstitution or Email of Authors
Prats, PauUNSPECIFIED
Andres, ChristianUNSPECIFIED
Scheiber, RolfUNSPECIFIED
Reigber, AndreasUNSPECIFIED
Horn, RalfUNSPECIFIED
Date:June 2008
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:No
In ISI Web of Science:No
Page Range:p. 4
Publisher:VDE Verlag GmbH
ISBN:978-3-8007-3084-1
Status:Published
Keywords:synthetic aperture radar (SAR), differential SAR interferometry (DInSAR), SAR interferometry, cryosphere
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Friedrichshafen, Germany
Event Type:international Conference
Event Dates:2008-06-02 - 2008-06-05
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 Flugzeug-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > SAR Technology
Deposited By: Dr. Pau Prats
Deposited On:04 Aug 2008
Last Modified:12 Dec 2013 20:30

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