Noise-induced flow in quasigeostrophic turbulence with bottom friction

A. Alvarez; E. Hernandez-Garcia; J. Tintore

doi:10.1016/s0375-9601(99)00638-6

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Noise-induced flow in quasigeostrophic turbulence with bottom friction

A. Alvarez·E. Hernandez-Garcia·J. Tintore

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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.

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A. Alvarez, E. Hernandez-Garcia, J. Tintore. 1999-05-14. Noise-induced flow in quasigeostrophic turbulence with bottom friction. https://doi.org/10.1016/s0375-9601(99)00638-6

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