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Validation of an X Band SAR Wind Algorithm by SIR C/X SAR Data

Lehner, Susanne and Schulz-Stellenfleth, Johannes and Brusch, Stephan (2007) Validation of an X Band SAR Wind Algorithm by SIR C/X SAR Data. In: Proceedings of IGARSS 2007, pp. 3285-3288. IGARSS 2007 Conference - Geoscience and Remote Sensing Symposium 2007, 2007-07-23 - 2007-07-28, Barcelona, Spain. ISBN 978-1-4244-1212-9. ISSN 10.1109/IGARSS.2007.4423546

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Abstract

Space borne radar systems are capable of providing wind field information over the ocean. Radar instruments are of high value for operational applications because of their all weather and daylight capabilities. Synthetic aperture radar (SAR) instruments as flown on the European satellites ERS-2, ENVISAT or the Canadian platform RADARSAT are of particular interest for applications where high resolution two-dimensional information on the near surface wind field is needed. All these operate in C band, the respective wind field algorithm CMOD was tuned to this wavelength. New research focussed on high speed cases to be able to measure wind speeds above 20 m/sec and on the VV to HH polarisation ratio. For future missions like TerraSAR-X, to be launched in May 2007 new wind field algorithms tuned to X band are needed. The TerraSAR-X instrument has a spatial resolution of up to 1 m and additional features like multi polarisation which make it a very interesting tool for oceanographic applications. In this paper a new X band wind field algorithm, XMOD1.0 is introduced. The algorithm is based on detection of wind streaks in the SAR images the scatterometer measurements of Masuko et al. Data from the SRTM mission flown on the shuttle in February 2000 and SIR C/X SAR in 1994 are used to test the algorithm. Results are validated against in situ data and model data from ECMWF. The potential of SAR measurements to support the optimal siting, the design, as well as the operation of offshore wind parks is shown. Applications for offshore wind farming of the TerraSAR-X mission will be discussed. The platform FINO 1 was chosen as a primary test site to calibrate and validate wind fields for X band satellite images. For the development, optimisation and validation of the retrieval algorithms comparisons with in situ data, e.g., acquired at the FINO platform will be carried out. The respective calibration and validations strategies will be summarized.

Document Type:Conference or Workshop Item (Speech)
Title:Validation of an X Band SAR Wind Algorithm by SIR C/X SAR Data
Authors:
AuthorsInstitution or Email of Authors
Lehner, SusanneUNSPECIFIED
Schulz-Stellenfleth, JohannesUNSPECIFIED
Brusch, StephanUNSPECIFIED
Date:2007
Journal or Publication Title:Proceedings of IGARSS 2007
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 3285-3288
Editors:
EditorsEmail
IEEE Org., UNSPECIFIED
ISSN:10.1109/IGARSS.2007.4423546
ISBN:978-1-4244-1212-9
Status:Published
Keywords:SAR, wind
Event Title:IGARSS 2007 Conference - Geoscience and Remote Sensing Symposium 2007
Event Location:Barcelona, Spain
Event Type:international Conference
Event Dates:2007-07-23 - 2007-07-28
Organizer:IEEE Org.
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:10 Apr 2008
Last Modified:15 Jan 2010 00:39

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