FN Archimer Export Format PT C TI Interpreting Surface Ocean Phenomena Through Quad-Polarized SAR Measurements BT AF FAN, Shengren KUDRYAVTSEV, Vladimir ZHANG, Biao CHAPRON, Bertrand AS 1:1;2:2,3;3:1;4:2,4; FF 1:;2:;3:;4:PDG-ODE-LOPS-SIAM; C1 Nanjing Univ Informat Sci & Technol, Nanjing, Peoples R China. Russian State Hydrometeorol Univ, St Petersburg, Russia. Marine Hydrophys Inst, Sebastopol, Russia. Inst Franc Ais Rech Exploitat Mer, Issy Les Moulineaux, France. C2 UNIV NANJING, CHINA UNIV RUSSIAN STATE HYDROMETEOROL, RUSSIA MARINE HYDROPHYS INST, RUSSIA IFREMER, FRANCE SI BREST SE PDG-ODE-LOPS-SIAM UM LOPS IN WOS Ifremer UMR copubli-int-hors-europe copubli-sud UR https://archimer.ifremer.fr/doc/00706/81805/86541.pdf LA English DT Proceedings paper DE ;Quad-polarization SAR scene;decompose;Bragg scattering;breaking waves AB 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. PY 2019 CT IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019, ISBN:978-1-5386-9155-7. pp. 4689-4692 DI 10.1109/IGARSS.2019.8900538 ID 81805 ER EF