Interpreting Surface Ocean Phenomena Through Quad-Polarized SAR Measurements
Type | Proceedings paper | ||||||||||||
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Date | 2019 | ||||||||||||
Language | English | ||||||||||||
Author(s) | Fan Shengren1, Kudryavtsev Vladimir2, 3, Zhang Biao1, Chapron Bertrand![]() |
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Affiliation(s) | 1 : Nanjing Univ Informat Sci & Technol, Nanjing, Peoples R China. 2 : Russian State Hydrometeorol Univ, St Petersburg, Russia. 3 : Marine Hydrophys Inst, Sebastopol, Russia. 4 : Inst Franc Ais Rech Exploitat Mer, Issy Les Moulineaux, France. |
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Meeting | IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium | ||||||||||||
Source | IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019, ISBN:978-1-5386-9155-7. pp. 4689-4692 | ||||||||||||
DOI | 10.1109/IGARSS.2019.8900538 | ||||||||||||
Keyword(s) | Quad-polarization SAR scene, decompose, Bragg scattering, breaking waves | ||||||||||||
Abstract | RADARSAT-2 C-band quad-polarization ocean synthetic aperture radar (SAR) scenes are decomposed into resonant Bragg scattering from regular (no-breaking) surface and scattering from breaking waves. Analysis of the surface current signatures in dual co- and cross-pol SAR images revealed that governing imaging mechanism is modulations of wave breakings which are very sensitive to the presence of current non-uniformities. As found, due to small relaxation scale, short Bragg waves do not "feel" the current. Thus routinely observed current signatures in quad-pol SAR images originate essentially from wave breaking modulations, and modulation of Bragg waves does not matter this issue. |
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