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The acoustic gravity wave induced by a point source in the middle atmosphereAcoustic gravity wave (AGW) results computed for a stationary impulsive point source and a moving point source in the middle atmosphere are presented. For a stationary impulsive point Row's far field formula of the AGW was extended into the near field one, which comprises the Zeroth order Bessel function and its derivative terms. When (t-t sub o) is not large, the contribution of the derivative terms is important. The computed results agree with the experimental ones. For a moving point source with supersonic velocity, AGW is calculated using the moving point theory. Two solar eclipses that occurred in the lower latitude and over the ocean on Feb. 16, 1980, and June 11, 1983, were compared. The results show that the theoretical curve of AGW is fairly consistent with the observed ones.
Document ID
19860018303
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zhang, X. J.
(Wuhan Univ.)
Xiong, N. L.
(Wuhan Univ.)
Date Acquired
August 12, 2013
Publication Date
December 1, 1985
Publication Information
Publication: International Council of Scientific Unions Handbook for MAP, Vol. 18
Subject Category
Geophysics
Accession Number
86N27775
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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