Scaling laws for the upper ocean temperature dissipation rate

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dc.contributor.authorBogucki, Darek
dc.contributor.authorHuguenard, K.
dc.contributor.authorHaus, B. K.
dc.contributor.authorÖzgökmen, T. M.
dc.contributor.authorReniers, A.
dc.contributor.authorLaxague, N. J. M.
dc.date.accessioned2022-03-10T18:38:07Z
dc.date.available2022-03-10T18:38:07Z
dc.date.issued2015-01-24
dc.description.abstractOur understanding of temperature dissipation rate χ within the upper ocean boundary layer, which is critical for climate forecasts, is very limited. Near-surface turbulence also affects dispersion of contaminants and biogeochemical tracers. Using high-resolution optical turbulence measurements, scaling laws for χ are investigated under forcing states where either the daytime heat flux or the wind stress forcing is dominant. We find that χ remains constant over 1.5 times the significant wave height, while over a layer below, χ decays based on the local surface forcing. When the heat flux is dominant, traditional scaling based on the Monin-Obukhov similarity theory remains valid; χ ∝ z−1. When the wind stress dominates, we observe the emergence of a new scaling, χ ∝ z−1/2, which is explained by invoking the effect of small-scale coherent structures on vertical heat transport. These results have implications for improved modeling of the ocean's heat and CO2 intake.en_US
dc.identifier.citationBogucki, D.J., Huguenard, K., Haus, B.K., Özgökmen, T.M., Reniers, A.J.H.M. and Laxague, N.J.M., 2015. Scaling laws for the upper ocean temperature dissipation rate. Geophysical Research Letters, 42(3), pp.839-846.en_US
dc.identifier.doihttps://doi.org/10.1002/2014GL062235
dc.identifier.urihttps://hdl.handle.net/1969.6/90249
dc.language.isoen_USen_US
dc.publisherAmerican Geophysical Unionen_US
dc.subjectupper ocean turbulenceen_US
dc.titleScaling laws for the upper ocean temperature dissipation rateen_US
dc.typeArticleen_US

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