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Evidence for a fluctuation theorem in an atmospheric circulation model

Evidence for a fluctuation theorem in an atmospheric circulation model An investigation of the distribution of finite time trajectory divergence is performed on an atmospheric global circulation model. The distribution of the largest local Lyapunov exponent shows a significant probability for negative values over time spans up to 10 days. This effect is present for resolutions up to wave numbers ℓ = 42 ( ≈ 250 km). The probability for a negative local largest Lyapunov exponent decreases over time, similarly to the predictions of the fluctuation theorem for entropy production. The model used is hydrostatic with variable numbers of vertical levels and different horizontal resolutions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review E American Physical Society (APS)

Evidence for a fluctuation theorem in an atmospheric circulation model

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Publisher
American Physical Society (APS)
Copyright
Copyright © 2013 The American Physical Society
ISSN
1550-2376
DOI
10.1103/PhysRevE.87.052113
pmid
23767493
Publisher site
See Article on Publisher Site

Abstract

An investigation of the distribution of finite time trajectory divergence is performed on an atmospheric global circulation model. The distribution of the largest local Lyapunov exponent shows a significant probability for negative values over time spans up to 10 days. This effect is present for resolutions up to wave numbers ℓ = 42 ( ≈ 250 km). The probability for a negative local largest Lyapunov exponent decreases over time, similarly to the predictions of the fluctuation theorem for entropy production. The model used is hydrostatic with variable numbers of vertical levels and different horizontal resolutions.

Journal

Physical Review EAmerican Physical Society (APS)

Published: May 1, 2013

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