Articles | Volume 28, issue 3
https://doi.org/10.5194/npg-28-371-2021
https://doi.org/10.5194/npg-28-371-2021
Research article
 | 
04 Aug 2021
Research article |  | 04 Aug 2021

Empirical evidence of a fluctuation theorem for the wind mechanical power input into the ocean

Achim Wirth and Bertrand Chapron

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Related subject area

Subject: Time series, machine learning, networks, stochastic processes, extreme events | Topic: Climate, atmosphere, ocean, hydrology, cryosphere, biosphere | Techniques: Theory
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Cited articles

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Bernie, D., Guilyardi, E., Madec, G., Slingo, J., and Woolnough, S.: Impact of resolving the diurnal cycle in an ocean–atmosphere GCM. Part 1: A diurnally forced OGCM, Clim. Dynam., 29, 575–590, 2007. a
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Short summary
In non-equilibrium statistical mechanics, which describes forced-dissipative systems such as air–sea interaction, there is no universal probability density function (pdf). Some such systems have recently been demonstrated to exhibit a symmetry called a fluctuation theorem (FT), which strongly constrains the shape of the pdf. Using satellite data, the mechanical power input to the ocean by air–sea interaction following or not a FT is questioned. A FT is found to apply over specific ocean regions.