Reversible and irreversible finestructure Desaubies, Yves Gregg, Michael C. 2018-04-24T18:19:08Z 2018-04-24T18:19:08Z 1981-09
dc.description Also published as: Journal. of Physical Oceanography 11 (1981): 541-546 en_US
dc.description.abstract Various statistics of temperature profiles are examined in an attempt to distinguish irreversible structures due to mixing from reversible distortions induced by internal wave straining. Even if all the low gradient regions were the result of mixing events, an analysis of the profiles shows that such events are rare and most often incomplete. An upper bound on the mixing effectiveness is obtained; it increases as the vertical scale decreases. Taking next the opposite view that internal wave straining is the sole process, an analytic model is developed to calculate the probability density function of temperature gradients. The model considers the straining by a weakly nonlinear Gaussian internal wave field of a linear temperature profile. The nonlinearity of the field is essential to account for the skewness of the probability distributions. Comparisons with data are quite satisfactory at scales larger than - 2m, less so at smaller scales. We conclude that nonlinear effects are important; at scales larger than - 2 m straining is dominant with very little mixing, while at smaller scales irreversible structures are more prevalent. en_US
dc.description.sponsorship Prepared for the Office of Naval. Research under Contracts N00014-75-C-0502 and N00014-79-C-0071. en_US
dc.identifier.citation Desaubies, Y., & Gregg, M. C. (1981). Reversible and irreversible finestructure. Woods Hole Oceanographic Institution.
dc.identifier.doi 10.1575/1912/10285
dc.language.iso en_US en_US
dc.publisher Woods Hole Oceanographic Institution en_US
dc.relation.ispartofseries WHOI Technical Reports en_US
dc.relation.ispartofseries WHOI-81-83 en_US
dc.subject Fine-structure constant en_US
dc.subject Waves en_US
dc.subject Ocean temperature en_US
dc.title Reversible and irreversible finestructure en_US
dc.type Technical Report en_US
dspace.entity.type Publication
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relation.isAuthorOfPublication.latestForDiscovery 4503b9be-7b61-41cf-9f37-7d73b62b25de
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