Acoustic-gravity wave impulse response to a point source in a nonisothermal stratified atmosphere

Details Acoustic-gravity wave impulse response to a point source in a nonisothermal stratified atmosphere Acoustic-gravity wave impulse response to a point source in a nonisothermal stratified atmosphere

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgr...100.9741n&link_type=abstract

Journal of Geophysical Research, Volume 100, Issue A6, p. 9741-9752

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Ionosphere: Wave Propagation, Meteorology And Atmospheric Dynamics: Thermospheric Dynamics, Meteorology And Atmospheric Dynamics: Waves And Tides, Meteorology And Atmospheric Dynamics: Theoretical Modeling

Scientific paper

The excitation of pressure waves by a point source in a nonisothermal, stratified atmosphere is studied. Using an ad hoc monotonically increased thermal profile, Green's function is derived. It is shown that apart from the usual acoustic and acoustic-gravity branches, waves guided by the atmospheric thermocline are also excited. The leading term of an asymptotic expansion of Green's function is then used to obtain an analytic expression of the acoustic front and the impulse tail.

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