Acoustic-Gravity Wave Propagation in a Temperature- and Wind-Stratified Atmosphere
Open Access
- 1 September 1968
- journal article
- Published by American Meteorological Society in Journal of the Atmospheric Sciences
- Vol. 25 (5) , 818-826
- https://doi.org/10.1175/1520-0469(1968)025<0818:agwpia>2.0.co;2
Abstract
A theory of propagation of acoustic-gravity waves in a temperature- and wind-stratified atmosphere is developed. It is shown by using suitable wind structure in a COSPAR standard atmosphere that both the normal dispersion (group velocity increasing with period) and the inverse dispersion (group velocity decreasing as the period increases) of acoustic-gravity waves can be explained. It is found that winds of the order of 100 m sec−1 at about 100 km altitude are needed to account for inverse dispersion in the period range of about 5–15 min.Keywords
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