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Open Access item Noise-induced flow in quasigeostrophic turbulence with bottom friction

Authors:Álvarez, Alberto
Hernández-García, Emilio
Tintoré, Joaquín
Keywords:Chaotic Dynamics, Statistical Mechanics, Atmospheric and Oceanic Physics, [PACS] Nonlinear dynamics and nonlinear dynamical systems, [PACS] Other topics in fluid dynamics, [PACS] Other topics in hydrospheric and atmospheric geophysics
Issue Date:7-Sep-1999
Citation:Physics Letters A 261(3-4): 179-182 (1999)
Abstract:Randomly-forced fluid flow in the presence of scale-unselective dissipation develops mean currents following topographic contours. Known mechanisms based on the scale-selective action of damping processes are not at work in this situation. Coarse-graining reveals that the phenomenon is a kind of noise-rectification mechanism, in which lack of detailed balance and the symmetry-breaking provided by topography play an important role.
Description:4 pages.-- PACS nrs.: 05.40.-a; 47.90.+a; 92.90.+x.-- Printed version published Oct 11, 1999.-- ArXiv pre-print available at: http://arxiv.org/abs/chao-dyn/9905022
Publisher version (URL):http://dx.doi.org/10.1016/S0375-9601(99)00638-6
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