Zonal Jets in Rotating Shallow Water Turbulence
نویسندگان
چکیده
منابع مشابه
The structure of zonal jets in shallow water turbulence on the sphere
The large-scale motions of planetary atmospheres and oceans, constrained by strong stable stratification and rapid rotation, are characterized in part by quasi-two dimensional turbulent motion and in part by coherent structures, such as vortices, zonal jets, and low-frequency waves. These motions are intimately linked and understanding their complex and multiscale interactions presents a comple...
متن کاملAnisotropic turbulence and zonal jets in rotating flows with a β-effect
Numerical studies of small-scale forced, twodimensional turbulent flows on the surface of a rotating sphere have revealed strong large-scale anisotropization that culminates in the emergence of quasi-steady sets of alternating zonal jets, or zonation. The kinetic energy spectrum of such flows also becomes strongly anisotropic. For the zonal modes, a steep spectral distribution, E(n)=CZ(/R)n, i...
متن کاملThe structure of zonal jets in geostrophic turbulence
Richard K. Scott and David G. Dritschel Journal of Fluid Mechanics / Volume 711 / November 2012, pp 576 598 DOI: 10.1017/jfm.2012.410, Published online: 21 September 2012 Link to this article: http://journals.cambridge.org/abstract_S0022112012004107 How to cite this article: Richard K. Scott and David G. Dritschel (2012). The structure of zonal jets in geostrophic turbulence. Journal of Fluid...
متن کاملThe structure of zonal jets in geostrophic turbulence By RICHARD
The structure of zonal jets arising in forced-dissipative, two-dimensional turbulent flow on the β-plane is investigated using high-resolution, long-time numerical integrations, with particular emphasis on the late-time distribution of potential vorticity. The structure of the jets is found to depend in a simple way on a single non-dimensional parameter, which may be conveniently expressed as t...
متن کاملScaling, spectra and zonal jets in beta-plane turbulence
A beta-plane approximation of the two-dimensional quasigeostrophic model describes a single layer ~barotropic! fluid subjected to a latitudinally varying Coriolis parameter or topography. Rhines ~1975! initiated the study of beta-plane turbulence. He predicted the inverse energy cascade into predominantly zonal modes, hence an array of eastward–westward jets, and estimated the jet number ~celeb...
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ژورنال
عنوان ژورنال: Earth Sciences
سال: 2013
ISSN: 2328-5974
DOI: 10.11648/j.earth.20130202.11