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Chinese Journal of Space Science ›› 2020, Vol. 40 ›› Issue (6): 1030-1038.doi: 10.11728/cjss2020.06.1030

• Research Articles • Previous Articles    

Research of Monthly Zonal Winds Derived from Radio Occultation Temperature Data

DU Xiaoyong, DU Zhitao, GUO Yuening, FU Yang   

  1. Beijing Institute of Applied Meteorology, Beijing 100029
  • Received:2020-05-18 Revised:2020-08-17 Published:2020-12-09

Abstract: In order to make up for the lack of wind data in the middle and upper atmosphere, the gradient wind fields between altitude of 20km to 60km are calculated by interpolating COSMIC temperature data of year 2007 into gridded data. The derived wind fields are compared with ECMWF reanalyzed data and HWM07 model outputs. Results show that the characteristics of wind fields derived from COSMIC temperature data are more similar with that of the reanalyzed data and are similar with HWM07 output as a whole, while are different from HWM07 data in detail. Compared with the ECMWF reanalyzed data, the mean differences of the zonal wind fields are within -1.50~-0.08m·-1, and the RMS are within 1.50~11.95m·-1. Compared with HWM07 outputs, the mean differences of the zonal wind fields are within -0.83~1.21m·-1, and the RMS are within 3.69m~11.14m·-1.

Key words: COSMIC, Occultation, Near space, Wind fields, ECMWF reanalyzed data, HWM model

CLC Number: