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Asymmetries in tidal structure between Adelaide and KyotoContinuous radar measurements of the wind oscillations caused by the solar diurnal and semidiurnal tides in the 80 to 110 km region of the atmosphere at the geographically conjugate stations of Adelaide (35 S, 138 E) and Kyoto (35 N, 136 E) are compared for the period 1983 to 1985. At the solstices it is found for both the 24- and 12-hr tides that the NS and EW oscillations tend to be in-phase and out-of-phase, respectively, behavior which indicates strong tidal asymmetries. The asymmetries in the 12-hr tide are consistent with a strong contribution from the (2,3) mode while the asymmetries in the 24-hr tide are ascribed to the effects of mean winds and dissipation acting to distort the (1,1) mode as it propagates up through the middle atmosphere.
Document ID
19890020524
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Vincent, R. A. (Adelaide Univ.)
Date Acquired
September 6, 2013
Publication Date
April 1, 1989
Publication Information
Publication: International Council of Scientific Unions, Middle Atmosphere Program. Handbook for MAP, volume 27
Subject Category
Geophysics
Accession Number
89N29895
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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