Extraterrestrial Applications of the Principle of Maximum Entropy Production (MEP)

Details Extraterrestrial Applications of the Principle of Maximum Entropy Production (MEP) Extraterrestrial Applications of the Principle of Maximum Entropy Production (MEP)

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm...p41b12l&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #P41B-12

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3309 Climatology (1620), 3314 Convective Processes, 5430 Interiors (8147), 5445 Meteorology (3346), 6207 Comparative Planetology

Scientific paper

Paltridge's model illustrating that the advective transfer of heat between latitudes on the Earth are selected to maximize their production of entropy has been the subject of much discussion since it was published in 1975. An argument offered in criticism is that the Earth's climate state might coincidentally be at MEP has been eroded somewhat by the finding (GRL 28, 415-418) that the zonal climate of Saturn's satellite Titan also appears to be in an MEP state, although the effective heat transfer coefficient is orders of magnitude smaller than that for the Earth (even though conventional scaling would indicate it should be orders of magnitude higher.) The principle also predicts substantial heat flow on Mars, although of course can say nothing about how it transports that heat : sensible heat transport is very small in the thin atmosphere of Mars, but the latent heat moved by the seasonal CO2 frost cycle is in good agreement with MEP predictions. Applications to the climates of other planets will be discussed, as well as convection in the interiors of planetary bodies.

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