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Analysis of Nonlinear Ocean Wave Features in Synthetic Aperture Radar Imagery

Nieto-Borge, Jose Carlos and Schulz-Stellenfleth, Johannes and Niedermeier, Andreas (2004) Analysis of Nonlinear Ocean Wave Features in Synthetic Aperture Radar Imagery. In: 2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings, pp. 3584-3587. IEEE. IGARSS 2004, Anchorage, USA, 20-24 September 2004. ISBN 0-7803-8742-2 (CD: 0-7803-8743-0).

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Spaceborne Synthetic Aperture Radar (SAR) is a reliable tool to analyze sea states in the open ocean on a global scale. The sea state information obtained from SAR systems is mainly based on two different approaches: The first approach considers the spectral description of a sea state in terms of the so-called directional wave spectrum. The second more recent approach provides estimations of the wave elevation fields in two dimensions, which permits to detect individual wave heights. Both approaches consider a linear wave field (i.e. a linear superposition of single monochromatic wave components). Although the linear wave theory is sufficient to explain most of the mean statistical features of sea states, it is no able to describe properly some wave phenomena, such as the asymmetries between wave crests and thoughts, which are of special interest for off-shore platform and ship designers. This work analyses the effects of nonlinear wave field features in the SAR imaging mechanisms in order to detect these phenomena on the SAR images of the open ocean.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2004,
Title:Analysis of Nonlinear Ocean Wave Features in Synthetic Aperture Radar Imagery
AuthorsInstitution or Email of Authors
Nieto-Borge, Jose CarlosUNSPECIFIED
Schulz-Stellenfleth, JohannesUNSPECIFIED
Niedermeier, AndreasUNSPECIFIED
Journal or Publication Title:2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings
Page Range:pp. 3584-3587
IEEE Operations Center, UNSPECIFIED
ISBN:0-7803-8742-2 (CD: 0-7803-8743-0)
Keywords:SAR, ocean waves, global sea state, nonlinear wave field
Event Title:IGARSS 2004, Anchorage, USA, 20-24 September 2004
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):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
Deposited By: Bärbel Bolowski
Deposited On:07 Feb 2006
Last Modified:06 Jan 2010 22:33

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