A. Venaille

Publications63
h-index16
Citations924
Highly Influential Citations54
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Statistical mechanics of two-dimensional and geophysical flows
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Topological origin of equatorial waves
TLDR
A topological origin is shown for two well-known equatorially trapped waves, the Kelvin and Yanai modes, owing to the breaking of time-reversal symmetry by Earth's rotation, which demonstrates that ocean and atmospheric waves share fundamental properties with topological insulators and that topology plays an unexpected role in Earth's climate system.
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Baroclinic Turbulence in the Ocean: Analysis with Primitive Equation and Quasigeostrophic Simulations
AbstractThis paper examines the factors determining the distribution, length scale, magnitude, and structure of mesoscale oceanic eddies in an eddy-resolving primitive equation simulation of the…
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Experimental observation of a strong mean flow induced by internal gravity waves
We report the experimental observation of a robust horizontal mean flow induced by internal gravity waves. A wave beam is forced at the lateral boundary of a tank filled with a linearly stratified…
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Bottom-trapped currents as statistical equilibrium states above topographic anomalies
  • A. Venaille
  • Physics, Environmental Science
    Journal of Fluid Mechanics
  • 28 February 2012
Abstract Oceanic geostrophic turbulence is mostly forced at the surface, yet strong bottom-trapped flows are commonly observed along topographic anomalies. Here we consider the case of a freely…
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Instabilities of Internal Gravity Wave Beams
Internal gravity waves play a primary role in geophysical fluids: They contribute significantly to mixing in the ocean, and they redistribute energy and momentum in the middle atmosphere. Until…
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A dynamical equation for the distribution of a scalar advected by turbulence
A phenomenological model for the dissipation of scalar fluctuations due to the straining by the fluid motion is proposed in this Brief Communication. An explicit equation is obtained for the time…
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Stochastic variability of oceanic flows above topography anomalies
We describe a stochastic variability mechanism which is genuinely internal to the ocean, i.e., not due to fluctuations in atmospheric forcing. The key ingredient is the existence of closed contours…
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The catalytic role of the beta effect in barotropization processes
Abstract The vertical structure of freely evolving, continuously stratified, quasi-geostrophic flow is investigated. We predict the final state organization, and in particular its vertical structure,…
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Topological Origin of Geophysical Waves
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