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
Department微波遥感部
Source PublicationIGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
2018
Pages1005-1008
ISSN2153-6996
ISBN978-1-5386-7150-4
Abstract

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.

KeywordImaging Altimeter Ocean Surface Wind Speed Inversion Accuracy In-orbit Assessment
Conference Name38th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJUL 22-27, 2018
Conference PlaceValencia, SPAIN
Indexed ByEI ; CPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6715
Collection微波遥感部
Recommended Citation
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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