Seasonal behavior of meteor radar winds over Wuhan
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概要
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A newly installed meteor radar has been installed to measure winds in the mesosphere and lower thermosphere (MLT) over Wuhan (114.4°E, 30.6°N). In the present study, a database of the first 25 months (February 2002-February 2004) of observations has been analyzed to investigate the climatology of mean winds and tides. The daily average zonal wind is charactered by a strong shear in solstices and an intense eastward flow in summer. The daily average meridional wind is northward in winter and southward in other seasons. There are some discrepancies between the radar mean winds and the HWM93 model winds. The summer zonal winds and meridional winds from the model are obviously weaker than our observations. The analysis on tides indicates that the diurnal tide is dominant at Wuhan. The seasonal variability is observed in both the diurnal and semidiurnal tidal amplitudes with the maximum values occurring usually near the equinoxes. Compared with the Global Scale Wave Model (GSWM00), the observed results generally show a smaller diurnal tidal amplitude and a larger semidiurnal tidal amplitude.
- 公益社団法人 日本地震学会、地球電磁気・地球惑星圏学会 、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会の論文
著者
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LIU Libo
Division of Geomagnetism and Space Physics, Institute of Geology and Geophysics, Chinese Academy of
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Ning Baiqi
Division Of Geomagnetism And Space Physics Institute Of Geology And Geophysics Chinese Academy Of Sc
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Zhao Guangxin
Division Of Geomagnetism And Space Physics Institute Of Geology And Geophysics Chinese Academy Of Sc
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Wan Weixing
Division Of Geomagnetism And Space Physics Institute Of Geology And Geophysics Chinese Academy Of Sc
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Xiong Jiangang
Division Of Geomagnetism And Space Physics Institute Of Geology And Geophysics Chinese Academy Of Sc
関連論文
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- Seasonal behavior of meteor radar winds over Wuhan