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Mélange et circulation océanique : une approche par la physique statistique.

Abstract : Understanding how the small scales affect the large scales in oceans is an important issue for the description of surface currents and of the vertical structure of the oceans. The huge number of degrees of freedom involved in those problems makes any deterministic approach illusory. By contrast, the traditional tools of statistical mechanics allow to reduce those problems to the study of only a few parameters. In the first part, the equilibrium statistical mechanics of two-dimensional flows is applied to the study of simple ocean models. The second part is a phenomenological approach to turbulent mixing in stratified flows; the aim is to describe the temporal evolution of the probability to measure a certain value of the fluid density at a given depth.
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Contributor : Antoine Venaille Connect in order to contact the contributor
Submitted on : Saturday, December 13, 2008 - 9:09:44 PM
Last modification on : Tuesday, December 7, 2021 - 4:04:04 PM
Long-term archiving on: : Tuesday, June 8, 2010 - 5:03:36 PM



  • HAL Id : tel-00347063, version 1



Antoine Venaille. Mélange et circulation océanique : une approche par la physique statistique.. Physique [physics]. Université Joseph-Fourier - Grenoble I, 2008. Français. ⟨tel-00347063⟩



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