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Chinese Journal of Space Science ›› 2019, Vol. 39 ›› Issue (1): 76-83.doi: 10.11728/cjss2019.01.076

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Comparison of Retrieval Methods for Neutral Wind Based on Airglow Measurements by a Ground-based Fabry-Perot Interferometer

YANG Run1,2, XU Jiyao1,2, ZHU Yajun3, YUAN Wei1   

  1. 1 National Space Science Center, Chinese Academy of Sciences, Beijing 100010;
    2 University of Chinese Academy of Sciences, Beijing 100049;
    3 Institute of Energy and Climate Research (IEK-7), Jülich 999035
  • Received:2018-01-24 Revised:2018-08-08 Online:2019-01-15 Published:2019-01-30

Abstract:

Three methods are used to derive neutral winds from mid- and upper atmospheric airglow measurements by a ground-based Fabry-Perot Interferometer (FPI), which was deployed at Xinglong station (40.2°N, 117.4°E) in Hebei province. The three methods are the radius method, the complete Fourier series description method and the nonlinear regression fitting method, respectively. The retrieval results show that the three methods can derive the neutral winds correctly within a given range of error. The nonlinear regression fitting method is recommended among the three methods, because more comprehensive fringe information is taken into account to derive the neutral winds by this method.

Key words: Fabry-Perot interferometer, Wind velocity, Retrieval method

CLC Number: