GLOBAL MESOSPHERIC TIDAL WINDS OBSERVED BY THE HIGH-RESOLUTION DOPPLER IMAGER ON BOARD THE UPPER-ATMOSPHERE RESEARCH SATELLITE

被引:43
作者
MORTON, YT
LIEBERMAN, RS
HAYS, PB
ORTLAND, DA
MARSHALL, AR
WU, D
SKINNER, WR
BURRAGE, MD
GELL, DA
YEE, JH
机构
[1] Space Physics Research Laboratory, University of Michigan
关键词
D O I
10.1029/93GL00826
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
This paper presents preliminary results of a study of mesospheric and lower thermospheric diurnal tidal winds obtained with the High Resolution Doppler Imager (HRDI) on the Upper Atmosphere Research Satellite (UARS). Zonal averages of the meridional and zonal wind fields are performed at fixed local times. These analyses reveal tidal structures in the mean meridional wind field during the months of February and March 1992. Results are presented for a typical day in February 1992. The observed maximum amplitude of meridional wind is approximately 75 m s-1. The observed vertical wavelength is about 20 km, with amplitudes increasing linearly with height. In addition to the tides, the zonal wind field reveals many features of the mesospheric climatological mean zonal wind.
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页码:1263 / 1266
页数:4
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