Article
Universal Spectrum of Two-Dimensional Turbulence on a Rotating Sphere and Some Basic Features of Atmospheric Circulation on Giant Planets
Physical Review Letters
Document Type
Article
Publication Date
1-1-2002
Digital Object Identifier (DOI)
https://doi.org/10.1103/PhysRevLett.89.124501
Disciplines
Abstract
The Kolmogorov-Batchelor-Kraichnan (KBK) theory of two-dimensional turbulence is generalized for turbulence on the surface of a rotating sphere. The energy spectrum develops considerable anisotropy; a steep −5 slope emerges in the zonal direction, while in all others the classical KBK scaling prevails. This flow regime in robust steady state is reproduced in simulations with linear drag. The conditions favorable for this regime may be common for giant planets’ atmospheric circulations; the same steep spectra are found in their observed zonal velocity profiles and utilized to explain their basic characteristics.
Citation / Publisher Attribution
Physical Review Letters, v. 89, p. issue 12, art. 124501
Citation Information
Semion Sukoriansky, Boris Galperin and Nadejda Dikovskaya. "Universal Spectrum of Two-Dimensional Turbulence on a Rotating Sphere and Some Basic Features of Atmospheric Circulation on Giant Planets" Physical Review Letters Vol. 89 Iss. 12 (2002) Available at: http://works.bepress.com/boris-galperin/68/