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Concepts of Entropy

A special issue of Entropy (ISSN 1099-4300).

Deadline for manuscript submissions: closed (31 May 2009)

Keywords

  • concepts of entropy

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Published Papers (1 paper)

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Review

846 KiB  
Review
Entropic Forces in Geophysical Fluid Dynamics
by Greg Holloway
Entropy 2009, 11(3), 360-383; https://doi.org/10.3390/e11030360 - 7 Aug 2009
Cited by 12 | Viewed by 8387
Abstract
Theories and numerical models of atmospheres and oceans are based on classical mechanics with added parameterizations to represent subgrid variability. Reformulated in terms of derivatives of information entropy with respect to large scale configurations, we find systematic forces very different from those usually [...] Read more.
Theories and numerical models of atmospheres and oceans are based on classical mechanics with added parameterizations to represent subgrid variability. Reformulated in terms of derivatives of information entropy with respect to large scale configurations, we find systematic forces very different from those usually assumed. Two examples are given. We see that entropic forcing by ocean eddies systematically drives, rather than retards, large scale circulation. Additionally we find that small scale turbulence systematically drives up gradient (“un-mixing”) fluxes. Such results confront usual understanding and modeling practice. Full article
(This article belongs to the Special Issue Concepts of Entropy)
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