Citation:
BaoZhu Zhou, XiangHui Xue, Wen Yi, HaiLun Ye, Jie Zeng, JinSong Chen, JianFei Wu, TingDi Chen, and XianKang Dou,
2022: A Comparison of MLT Wind between Meteor Radar Chain and SD-WACCM Results, Earth and Planetary Physics.
http://doi.org/10.26464/epp2022040
doi: 10.26464/epp2022040
A Comparison of MLT Wind between Meteor Radar Chain and SD-WACCM Results
1CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Sciences, University of Science and Technology of China, Hefei, China; |
2Mengcheng National Geophysical Observatory, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China; |
3Hefei National Laboratory for the Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China; |
4CAS Center for Excellence in Comparative Planetology, Hefei, China; |
5National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao, China; |
6Electronic Information School, Wuhan University, Wuhan, China |
A meteor radar chain located along the 120°E meridian in the Northern Hemisphere from low to middle latitudes provides long-term horizontal wind observations of the mesosphere and lower thermosphere (MLT) region. In this study, we report a seasonal variation and its latitudinal feature in the horizontal mean wind in the MLT region observed by 6 meteor radars located at Mohe (53.5°N, 122.3°E), Beijing (40.3°N, 116.2°E), Mengcheng (33.4°N, 116.5°E), Wuhan (30.6°N, 114.4°E), Kunming (25.6°N, 108.3°E) and Fuke (19.5°N, 109.1°E) stations. In addition, we compare the MLT wind measured by the meteor radars and the simulated by Whole Atmosphere Community Climate Model (WACCM). In general, the WACCM appears to well capture the seasonal and latitudinal variations in the zonal wind component. Especially, the temporal evolution of the eastward zonal wind maximum shifts from July to May as the latitude decreases. However, the WACCM meridional wind show differences with the meteor radar observations.
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