On C-Band Quad-Polarized Synthetic Aperture Radar Properties of Ocean Surface Currents

Autor: Shengren Fan, Vladimir Kudryavtsev, Biao Zhang, William Perrie, Bertrand Chapron, Alexis Mouche

Publikováno v: Remote Sensing, Vol 11, Iss 19, p 2321 (2019)

We present new results for ocean surface current signatures in dual co- and cross-polarized synthetic aperture radar (SAR) images. C-band RADARSAT-2 quad-polarized SAR ocean scenes are decomposed into resonant Bragg scattering from regular (non-break

Externí odkaz: https://doaj.org/article/42be7df8141f497e8abab88fcaf2f9b4

On the Use of Dual Co-Polarized Radar Data to Derive a Sea Surface Doppler Model—Part 2: Simulation and Validation

Autor: Shengren Fan, Biao Zhang, Artem Moiseev, Vladimir Kudryavtsev, Johnny A. Johannessen, Bertrand Chapron

Publikováno v: Ieee Transactions On Geoscience And Remote Sensing (0196-2892) (Institute of Electrical and Electronics Engineers (IEEE)), 2023, Vol. 61, P.

The Doppler shift obtained from synthetic aperture radar (SAR) measurements comprises the combined contribution to the radial motion of the ocean surface induced by the sea state (wind waves and swell) and underlying surface currents. Hence, to obtai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2baf37376c466354ba7c9e8321d83578
https://doi.org/10.1109/tgrs.2023.3246771

Observed Ocean Surface Winds and Mixed Layer Currents Under Tropical Cyclones: Asymmetric Characteristics

Autor: Shengren Fan, Biao Zhang, William Perrie, Alexis Mouche, Guoqiang Liu, Huimin Li, Chen Wang, Yijun He

Publikováno v: Journal of Geophysical Research. Oceans
Journal of Geophysical Research. Oceans, 2022, 127, ⟨10.1029/2021JC017991⟩
Journal Of Geophysical Research-oceans (2169-9275) (American Geophysical Union (AGU)), 2022-02, Vol. 127, N. 2, P. e2021JC017991 (13p.)

Tropical cyclones (TC) transfer kinetic energy to the upper ocean and thus accelerate the ocean mixed layer (OML) currents. However, the quantitative link between near-surface currents and high wind speeds, under extreme weather conditions, remains p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::addd027934e4cd8441f810515bb04119
https://doi.org/10.1029/2021jc017991

On Quad-Polarized SAR Measurements of the Ocean Surface

Autor: Bertrand Chapron, Alexis Mouche, Biao Zhang, Vladimir Kudryavtsev, Shengren Fan

Publikováno v: IEEE Transactions on Geoscience and Remote Sensing. 57:8362-8370

This paper provides improved quantitative estimates of the wind-ruffled roughness contributions to dual co- and cross-polarized radar signals. Expanding previous approaches, 1696 RADARSAT-2 quad-polarized synthetic aperture radar (SAR) measurements,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::89228780e8e34ac6373c53cf25614523
https://doi.org/10.1109/tgrs.2019.2920750

Synergistic Measurements of Hurricane Wind Speeds and Directions from C-band Dual-Polarization Synthetic Aperture Radar

Autor: Shengren Fan, William Perrie, Alexis Mouche, Biao Zhang, Guosheng Zhang

Publikováno v: IGARSS

Co- and cross-polarized geophysical model function (GMFs) both have limitations to retrieve ocean surface wind speeds. The former underestimates high winds and the latter overstimates low winds. In this study, we both use co- and cross-polarized SAR

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38f2c1edd930a4d0ac19029e208f5ce8
https://doi.org/10.1109/igarss.2019.8898747