Li Chang

Dr. Li Chang


Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 February 2025 in Remote Sensing
Verified
Journal Article
Open access
PDF file
WZWeifan Zhang
Weifan Zhang
询陆询 陆
询 陆
GCGang Chen
Gang Chen
WGWanlin Gong
Wanlin Gong
LCLi Chang
Li Chang
Based on long-term observations from Wuhan and Beijing MST (Mesosphere-Stratosphere-Troposphere) radars, we analyzed the climatological properties of mid-latitude mesospheric winds and evaluated them against the Horizontal Wind Model (HWM14). Measurements of zonal and meridional winds were collected from 2012 to 2021 using these two MST radars. The seasonal daily and monthly variations and periodic oscillations in mesospheric zonal and meridional winds are presented. Monthly mean and seasonal zonal winds recorded by two MST radars have similar height-time distributions to the HWM14. However, there are differences in zonal wind speeds, especially between summer and winter measurements and HWM14. The agreement between model results and actual radar measurements is poorer for meridional winds than for zonal winds. Through harmonic analysis, it is revealed that the zonal and meridional winds display significant Annual Oscillation (AO) between 65 and 85 km, while Semi-Annual Oscillation (SAO) is not readily apparent. It is found that there is no significant correlation between solar activity and the wind variations or data acquisition rate from MST radar. Overall, these studies help us better understand atmospheric changes in the mesosphere and provide ground observation references for models.