A Cascade-Type Global Energy Conversion Diagram Based on Wave–Mean Flow Interactions
A Cascade-Type Global Energy Conversion Diagram Based on Wave–Mean Flow Interactions
复制标题
基于波-平均流相互作用的级联型全局能量转换图
DOI:
10.1175/jas3804.1
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发表时间:
2006
影响因子:
3.1
通讯作者:
T. Iwasaki
中科院分区:
文献类型:
--
作者:
S. Uno;T. Iwasaki
Abstract A cascade-type energy conversion diagram is proposed for the purpose of diagnosing the atmospheric general circulation based on wave–mean flow interactions. Mass-weighted isentropic zonal means facilitate the expression of nongeostrophic wave effects, conservation properties, and lower boundary conditions. To gain physical insights into energetics based on the nonacceleration theorem, the wave energy W is defined as the sum of the eddy available potential energy PE and the eddy kinetic energy KE. The mainstream of the energy cascade is as follows: The diabatic heating produces the zonal mean available potential energy PZ, which is converted into the zonal mean kinetic energy KZ through the mean meridional circulation. The KZ is mainly converted to W through zonal wave–mean flow interactions and the rest is dissipated through friction. Not only the dynamical conversion but also the diabatic heating generates W, which is dissipated through friction. A diagnosis package is designed to analyze actual...
DOI:
--
发表时间:
2004
期刊:
J. Atmos. Sci. 61
影响因子:
--
作者:
Tanaka;D.
通讯作者:
D.
DOI:
--
发表时间:
2005
期刊:
Journal of the Atmospheric Sciences (in press)
影响因子:
--
作者:
Miyazaki;K.;T.Iwasaki
通讯作者:
T.Iwasaki