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Extraction of wave field from TerraSAR-X data

Bruck, Miguel and Lehner , Susanne (2010) Extraction of wave field from TerraSAR-X data. In: Proceedings of SEASAR 2010 Workshop (ESA-SP 679 (on CD-ROM)), pp. 1-5. ESA Communication Production Office. SEASAR 2010 Workshop, 25.-29. Jan. 2010, Frascati, Italy. ISBN 9789292212438.

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The new X-band Synthetic Aperture Radar (SAR) onboard the satellite TerraSAR-X (TSX) was launched on June 15, 2007. Since then it has provided numerous high quality data over land and ocean operationally. In the present study, integral wave parameters and two-dimensional ocean wave spectra are extracted from TerraSAR-X data. The preliminary results are compared to numerical wave models results, coastal X-band marine radar WaMoS (Wave and Surface Current Monitoring System) data. We developed an empirical geophysical model function (XWAVE) to derive significant wave height from TerraSAR-X data without using prior information. The comparison shows that the empirical model can yield reliable sea state measurements up to 5 m significant wave height. The model can be used for the near real-time services to deliver sea state measurements from high resolution TerraSAR-X data. Cross spectra are extracted from TerraSAR-X SSC (Single look Slant range Complex) products to remove the 180° ambiguity for wave propagation direction. A positive peak in the imaginary part of the cross spectrum indicates the ocean wave traveling direction. Peak wavelength is determined as well from the cross spectrum and compared to the WaMoS marine radar at Ekofisk oil platform in the North Sea is chosen as a test site.

Document Type:Conference or Workshop Item (Speech)
Title:Extraction of wave field from TerraSAR-X data
AuthorsInstitution or Email of Authors
Lehner , SusanneUNSPECIFIED
Journal or Publication Title:Proceedings of SEASAR 2010 Workshop
Page Range:pp. 1-5
Sawaya-Lacoste, Huguette ESA
Ouwehand, L.ESA
Publisher:ESA Communication Production Office
Series Name:Proceedings of SeaSAR 2010
Keywords:TerraSAR-X, surface wave parameters, coastal marine radar
Event Title:SEASAR 2010 Workshop
Event Location:Frascati, Italy
Event Type:international Conference
Event Dates:25.-29. Jan. 2010
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 Entwicklung und Erprobung von Verfahren zur Gewässerfernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Marine Remote Sensing
Deposited By: Bärbel Bolowski
Deposited On:22 Nov 2010 15:55
Last Modified:03 Apr 2013 15:05

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