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PolInSAR Signatures of Alpine Snow

Morrison, Keith und Rott, Helmut und Nagler, Thomas und Prats, Pau und Rebhan, Helge und Wursteisen, Patrick (2008) PolInSAR Signatures of Alpine Snow. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR), Seite 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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Snow cover appears as a key indicator in climate change, and the ability to remotely measure the physical properties of snow is of vital importance. Current model-based approaches used to interpret satellite and airborne data need much stronger experimental confirmation. PolInSAR is a promising emerging technique for the measurement of snow depth. It exploits the polarisation dependence of scattering mechanisms to estimate scattering phase centre heights, which can be extrapolated to retrieve snow depth. Both modelling work and previous experimental campaigns indicate that the X and Ku-bands are particularly suited for retrieving the physical properties of a snow pack as they are sensitive to both the surface and volume characteristics. However, no comprehensive assessment of the operational potential and limitations of PolInSAR are yet available for snow. This work investigates the conditions under which PolInSAR produces accurate results with respect to snow parameters such as structural features and metamorphic state, as well as technical sensor specifications. A field study of the PolInSAR X- and Ku-band response of alpine snow was carried out with the UK’s Ground-Based SAR (GBSAR) system in a measurement campaign in the Austrian Alps during early 2007. Complementary detailed snow state and structural parameters were also recorded, as well as environmental meteorological data. A brief outline of the experimental technique is presented, and an example of an interferometric product.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:PolInSAR Signatures of Alpine Snow
AutorenInstitution oder E-Mail-Adresse der Autoren
Morrison, KeithDAPS, Cranfield University, UK
Rott, HelmutENVEO, Austria
Nagler, ThomasENVEO, Austria
Rebhan, HelgeESA-ESTEC, Netherlands
Wursteisen, PatrickESA-ESTEC, Netherlands
Datum:Juni 2008
Erschienen in:Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR)
Referierte Publikation:Nein
In ISI Web of Science:Nein
Seitenbereich:Seite 4
Verlag:VDE Verlag GmbH
Stichwörter:synthetic aperture radar (SAR), Polarimetric SAR Interferometry (PolInSAR), snow
Veranstaltungstitel:European Conference on Synthetic Aperture Radar (EUSAR)
Veranstaltungsort:Friedrichshafen, Germany
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2008-06-02 - 2008-06-05
Veranstalter :VDE
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Flugzeug-SAR (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme
Institut für Hochfrequenztechnik und Radarsysteme > SAR-Technologie
Hinterlegt von: Dr. Pau Prats
Hinterlegt am:25 Aug 2008
Letzte Änderung:12 Dez 2013 20:32

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