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	Provedor de dados ArchiMer (1) Autor Mouche, Alexis (1) Ren, Lin (1) Wang, He (1) Wang, Juan (1) Yang, Jingsong (1) Zhang, Huaguo (1) Zheng, Gang (1) Mais... Palavra-chave Gaofen-3 (1) Geophysical model function (1) Noise equivalent sigma zero (1) Ocean surface wind (1) Polarization difference (1) Polarization ratio (1) Quad-polarization (1) Synthetic aperture radar (1) Mais... Tipo do documento Text (1) Ano 2017 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Preliminary Analysis of Chinese GF-3 SAR Quad-Polarization Measurements to Extract Winds in Each Polarization ArchiMer Ren, Lin; Yang, Jingsong; Mouche, Alexis; Wang, He; Wang, Juan; Zheng, Gang; Zhang, Huaguo. This study analyzed the noise equivalent sigma zero (NESZ) and ocean wind sensitivity for Chinese C-band Gaofen-3 (GF-3) quad-polarization synthetic aperture radar (SAR) measurements to facilitate further operational wind extraction from GF-3 data. Data from the GF-3 quad-polarization SAR and collocated winds from both NOAA/NCEP Global Forecast System (GFS) atmospheric model and National Data Buoy Center (NDBC) buoys were used in the analysis. For NESZ, the co-polarization was slightly higher compared to the cross-polarization. Regarding co-polarization and cross-polarization, NESZ was close to RadarSAT-2 and Sentinel-1 A. Wind sensitivity was analyzed by evaluating the dependence on winds in terms of normalized radar cross-sections (NRCS) and polarization... Tipo: Text Palavras-chave: Gaofen-3; Synthetic aperture radar; Quad-polarization; Ocean surface wind; Noise equivalent sigma zero; Geophysical model function; Polarization ratio; Polarization difference. Ano: 2017 URL: https://archimer.ifremer.fr/doc/00420/53104/54059.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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