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contributor authorCoy, Lawrence
contributor authorFritts, David C.
date accessioned2017-06-09T14:28:17Z
date available2017-06-09T14:28:17Z
date copyright1988/06/01
date issued1988
identifier issn0022-4928
identifier otherams-19834.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4155994
description abstractThe effect of a vertically propagating, internal gravity wave on the vertical flux of potential temperature (heat) is considered by averaging the local heat flux vector over a potential temperature surface. This approach gives the wave heat flux a simple physical picture which is not readily apparent from the more common Eulerian formulation. This method also allows the eddy diffusion coefficient to be a function of the phase of the wave. Such a phase dependent eddy diffusion has been previously considered from an Eulerian viewpoint as a model of a convectively unstable gravity wave. Here, the Lagrangian method confirms and corrects the Eulerian results. Earlier work is extended by modeling a constant amplitude ?breaking? wave, as well as by considering eddy diffusion coefficients that are asymmetric with respect to the wave breaking region. In all cases studied, 1ocalizing the eddy diffusion to the region of wayebreaking decreases the average heat flux.
publisherAmerican Meteorological Society
titleGravity Wave 1-leat Fluxes: A Lagrangian Approach
typeJournal Paper
journal volume45
journal issue12
journal titleJournal of the Atmospheric Sciences
identifier doi10.1175/1520-0469(1988)045<1770:GWLFAL>2.0.CO;2
journal fristpage1770
journal lastpage1780
treeJournal of the Atmospheric Sciences:;1988:;Volume( 045 ):;issue: 012
contenttypeFulltext


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