THE WIND SPEED INVERSION AND IN-ORBIT ASSESSMENT OF IMAGING ALTIMETER ON TIANGONG-2 SPACE STATION

NSSC OpenIR > 微波遥感部

	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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