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On the topographic rectification of ocean fluctuations

AuthorsÁlvarez, Alberto; Hernández-García, Emilio CSIC ORCID ; Tintoré, Joaquín CSIC ORCID
Issue Date1-Apr-2004
PublisherKluwer Academic Publishers
CitationInstabilities and Nonequilibrium Structures VII & VIII, edited by Orazio Descalzi, Javier Martínez, and Enrique Tirapegui, 133-139 (2004)
SeriesNonlinear Phenomena and Complex Systems ; 8
AbstractStochastic fluctuations acting on a model of quasigeostrophic fluid motion on a rotating frame are shown to be rectified giving rise to large-scale noise-sustained average currents. As in other noise rectification phenomena, the effect requires nonlinearity and absence of detailed balance to occur. We apply an analytical coarse-graining procedure to obtain insight into the phenomenon. Relevance of the effect in the context of ocean modeling is briefly discussed.
Description7 pages, 3 figures.-- Book TOC available at Google Books:
The contents of this book correspond to Sessions VII and VIII of the International Workshop on Instabilities and Nonequilibrium Structures which took place in Viña del Mar, Chile, in December 1997 and December 1999, respectively. Part I is devoted to self-contained courses. Three courses are related to new developments in Bose-Einstein condensation: the first one by Robert Graham studies the classical dynamics of excitations of Bose condensates in anisotropic traps, the second by Marc Etienne Brachet refers to the bifurcations arising in attractive Bose-Einstein condensates and superfluid helium and the third course by André Verbeure is a pedagogical introduction to the subject with special emphasis on first principles and rigorous results. Part I is completed by two courses given by Michel Moreau: the first one on diffusion limited reactions of particles with fluctuating activity and the second on the phase boundary dynamics in a one dimensional nonequilibrium lattice gas. Part II includes a selection of invited seminars at both Workshops.
Appears in Collections:(IFISC) Libros y partes de libros

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