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Observations of the diurnal tide from spaceThis study presents a climatology of mesospheric and lower-thermospheric diurnal tidal winds obtained with the High Resolution Doppler Imager (HRDI) on the Upper Atmosphere Research Satellite (UARS). The observations reveal that although tidal structures are present at all times, like the prevailing zonal winds, they exhibit significant semiannual as well as other shorter-term variations in amplitude. Results are presented for a period extending over more than one year from November 1991 to July 1993. The 1,1 diurnal tidal amplitude of the meridional component, characterized by the value at an altitude of 90 km and a latitude of 22 deg, ranges from a minimum at solstice of less than 20 m per sec to an equinox maximum of over 70 m per sec. The vertical wavelength and phase of the tide show only slight variations throughout the year, with a suggestion of semiannual variations in both.
Document ID
19950036045
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hays, Paul B.
(Univ. of Michigan, Ann Arbor, MI United States)
Wu, D. L.
(Univ. of Michigan, Ann Arbor, MI United States)
Burrage, M. D.
(Univ. of Michigan, Ann Arbor, MI United States)
Gell, D. A.
(Univ. of Michigan, Ann Arbor, MI United States)
Grassl, H. J.
(Univ. of Michigan, Ann Arbor, MI United States)
Lieberman, R. S.
(Univ. of Michigan, Ann Arbor, MI United States)
Marshall, A. R.
(Univ. of Michigan, Ann Arbor, MI United States)
Morton, Y. T.
(Univ. of Michigan, Ann Arbor, MI United States)
Ortland, D. A.
(Univ. of Michigan, Ann Arbor, MI United States)
Skinner, W. R.
(Univ. of Michigan, Ann Arbor, MI United States)
Date Acquired
August 16, 2013
Publication Date
October 15, 1994
Publication Information
Publication: Journal of the Atmospheric Sciences
Volume: 51
Issue: 20
ISSN: 0022-4928
Subject Category
Geosciences (General)
Accession Number
95A67644
Funding Number(s)
CONTRACT_GRANT: NAS5-27751
Distribution Limits
Public
Copyright
Other

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