Diffusion of inertia-gravity waves by geostrophic turbulence
Diffusion of inertia-gravity waves by geostrophic turbulence
复制标题
地转湍流引起的惯性重力波的扩散
DOI:
10.1017/jfm.2019.300
复制
发表时间:
2019
影响因子:
3.7
通讯作者:
Kafiabad H
中科院分区:
文献类型:
--
作者:
Kafiabad H
The scattering of inertia-gravity waves by large-scale geostrophic turbulence in a rapidly rotating, strongly stratified fluid leads to the diffusion of wave energy on the constant-frequency cone in wavenumber space. We derive the corresponding diffusion equation and relate its diffusivity to the wave characteristics and the energy spectrum of the turbulent flow. We check the predictions of this equation against numerical simulations of the three-dimensional Boussinesq equations in initial-value and forced scenarios with horizontally isotropic wave and flow fields. In the forced case, wavenumber diffusion results in a wave energy spectrum consistent with as-yet-unexplained features of observed atmospheric and oceanic spectra.
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DOI:
--
发表时间:
1975
期刊:
影响因子:
--
作者:
P. Müller;D. Olbers
通讯作者:
D. Olbers
影响因子:
1
作者:
G. Bal;T. Komorowski;L. Ryzhik
通讯作者:
L. Ryzhik
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
F. Henyey;N. Pomphrey
通讯作者:
N. Pomphrey
DOI:
10.48550/arxiv.1804.06347
发表时间:
2018
期刊:
--
影响因子:
--
作者:
Savva M
通讯作者:
Savva M
影响因子:
1.7
作者:
P. Müller
通讯作者:
P. Müller