Dispersion and mixing in quasigeostrophic turbulence

被引：28

作者：

Bracco, A ^{[1
]}

von Hardenberg, J

Provenzale, A

Weiss, JB

McWilliams, JC

机构：

[1] Abdus Salam ICTP, I-34100 Trieste, Italy

[2] Univ Genoa, CIMA, Genoa, Italy

[3] CNR, ISAC, I-10126 Turin, Italy

[4] Univ Colorado, PAOS, Boulder, CO 80309 USA

[5] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90095 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.92.084501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamics of passive Lagrangian tracers in three-dimensional quasigeostrophic turbulence is studied numerically and compared with the behavior of two-dimensional barotropic turbulence. Despite the different Eulerian properties of the two flows, the Lagrangian dynamics of passively advected tracers in three-dimensional quasigeostrophic turbulence is very similar to that of barotropic turbulence. In both systems, coherent vortices play a major role in determining the mixing and dispersion properties. This work indicates that recent results on particle dynamics in barotropic, two-dimensional turbulence carry over to more realistic baroclinic flows, such as those encountered in the large-scale dynamics of the atmosphere and ocean.

引用

页数：4

共 24 条

[1] RELATIVE DISPERSION IN 2-DIMENSIONAL TURBULENCE [J].