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| Li, Xiuzhong; Zhang, Biao; Mouche, Alexis; He, Yijun; Perrie, William. |
| This paper reports Ku-band normalized radar cross section (NRCS) at low incidence angles ranging from 0° to 18° and in the wind speed range from 6 to 70 m/s. The precipitation radar onboard the tropical rainfall measuring mission and Jason-1 and 2 have provided 152 hurricanes observations between 2008 and 2013 that were collocated with stepped-frequency microwave radiometer measurements. It is found that the NRCS decreases with increasing incidence angle. The decrease is more dramatic in the 40–70 m/s range of wind speeds than in the 6–20 m/s range, indicating that the NRCS is very sensitive to low incidence angles under extreme wind conditions and insensitive to the extreme wind speed. Consequently, the sea surface appears relatively “smooth” to Ku-band... |
| Tipo: Text |
Palavras-chave: NRCS; Extreme wind conditions; Low incidence angles. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00385/49659/50197.pdf |
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