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contributor authorBroutman, Dave
contributor authorRottman, James W.
contributor authorEckermann, Stephen D.
date accessioned2017-06-09T14:38:24Z
date available2017-06-09T14:38:24Z
date copyright2003/11/01
date issued2003
identifier issn0022-4928
identifier otherams-23357.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4159909
description abstractA previously derived approximation to the standard Fourier integral technique for linear mountain waves is extended to include nonhydrostatic effects in a background flow with height-dependent wind and stratification. The approximation involves using ray theory to simplify the vertical eigenfunctions. The generalization to nonhydrostatic waves requires special treatment for resonant modes and caustics. Resonant modes are handled with a small amount of damping, and caustics are handled with a uniformly valid approximation involving the Airy function. This method is developed for both two- and three-dimensional flows, and its results are shown to compare well with an exact analytical result for two-dimensional mountain waves and with a numerical simulation for two- and three-dimensional mountain waves.
publisherAmerican Meteorological Society
titleA Simplified Fourier Method for Nonhydrostatic Mountain Waves
typeJournal Paper
journal volume60
journal issue21
journal titleJournal of the Atmospheric Sciences
identifier doi10.1175/1520-0469(2003)060<2686:ASFMFN>2.0.CO;2
journal fristpage2686
journal lastpage2696
treeJournal of the Atmospheric Sciences:;2003:;Volume( 060 ):;issue: 021
contenttypeFulltext


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