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THE WIND SPEED INVERSION AND IN-ORBIT ASSESSMENT OF IMAGING ALTIMETER ON TIANGONG-2 SPACE STATION
Bao, Qingliu; Yin, Xiaobin; Zou, Juhong; Lin, Mingsen; Zhang, Youguang; Zhang, Yunhua
作者部门微波遥感部
会议录名称IGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
2018
页码1005-1008
语种英语
ISSN号2153-6996
ISBN号978-1-5386-7150-4
摘要Imaging ALTimeter (IALT) is a new type of radar altimeter system, which observes the earth from 2 degrees to 7 degrees incident angles. In comparison to the conventional altimeters such as HY-2A altimeter, Jason-1/2, TOPEX/Poseidon, which observe the ocean at nadir, the swath of IALT is much wider and its spatial resolution is much higher. The IALT on board Tiangong-2 space station is launched on 15th September, 2016 at Jiuquan Satellite Launch Center. The inorbit assessment of IALT is done until 30th April, 2017. In this paper, the ocean surface wind speed inversion method based on IALT is established. The neural network algorithm is used for ocean surface wind speed retrieval, and the spatial resolution of retrieved wind speed is 25km. The wind speed inversion accuracy is evaluated by comparing with the ECMWF reanalysis wind speed, buoy wind speed, and boat measurement wind speed. The results show that the Root-Mean-Square (RMS) of retrieved wind speed is 1.85m/s, and the Bias of retrieved wind speed is about 0.21m/s. The wind speed inversion accuracy satisfies performance requirement.
关键词Imaging ALTimeter ocean surface wind speed inversion accuracy in-orbit assessment
会议名称38th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
会议日期JUL 22-27, 2018
会议地点Valencia, SPAIN
收录类别CPCI
文献类型会议论文
条目标识符http://ir.nssc.ac.cn/handle/122/6715
专题微波遥感部
推荐引用方式
GB/T 7714
Bao, Qingliu,Yin, Xiaobin,Zou, Juhong,et al. THE WIND SPEED INVERSION AND IN-ORBIT ASSESSMENT OF IMAGING ALTIMETER ON TIANGONG-2 SPACE STATION[C],2018:1005-1008.
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