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Wave-induced mixing in the upper ocean: Distribution and application to a global ocean circulation model

TLDR
In this article, the wave-induced vertical viscosity (or diffusivity) Bv is defined, which can be used as a parameter to estimate the strength of waveinduced mixing.
Abstract
[1] From the Reynolds stress expression, the wave-induced vertical viscosity (or diffusivity) Bv is defined, which can be used as a parameter to estimate the strength of wave-induced mixing. In addition, a parameter D5 is introduced to represent a wave-induced mixing penetration depth. The global distribution of Bv averaged over the upper 20 m is calculated and its latitudinal transects in boreal summer and winter is discussed. The results show that in summer the wave-induced mixing is strong in the southern oceans south of 30°S, and in winter it is strong in the north Pacific and the north Atlantic north of 30°N, as well as in the southern oceans south of 40°S. Adding Bv to the vertical diffusivity in a global ocean circulation model yields a temperature structure in the upper 100 m that is closer to the observed climatology than a model without the wave-induced mixing.

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Seasonal variation of the barrier layer in the PN section

TL;DR: In this article, the authors used conductivity-temperature-depth (CTD) observation data and a three-dimensional ocean model in a seasonally-varying forcing field to study the barrier layer (BL) in the PN section in the East China Sea (ECS).
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The seafloor heat flux driven by bottom water temperature variation in the Yellow and Bohai Seas

TL;DR: In this paper , the authors investigated the seafloor heat flux driven by bottom water temperature variation in the Yellow and Bohai Seas (YBS) using a high-resolution numerical ocean model and a one-dimensional sediment temperature model.
Journal ArticleDOI

Direct Measurement of Turbulent Diffusion Induced by Waves in a Tank

TL;DR: In this article, the authors used the spreading rate of an inkblot in a water layer under waves to estimate the turbulent diffusivity of D in a wind-wave tank.

ocean circulation modeling with combined effects of surface waves and M2 internal tides on vertical mixing: a case study for the Indian Ocean”

TL;DR: In this article , three mixing schemes, including the non-breaking surface wave generated turbulent mixing, the mixing induced by the wave transport flux residue, and the internal-tide-generated turbulent mixing are introduced to study the effects the surface waves and the external tides on the vertical mixing.
References
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Journal ArticleDOI

Development of a turbulence closure model for geophysical fluid problems

TL;DR: The second-moment turbulent closure hypothesis has been applied to geophysical fluid problems since 1973, when genuine predictive skill in coping with the effects of stratification was demonstrated as discussed by the authors.

Climatological atlas of the world ocean

TL;DR: A project to objectively analyze historical ocean temperature, salinity, oxygen, and percent oxygen saturation data for the world ocean has recently been completed at the National Oceanic and Atmospheric Administration's (NOAA) Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey.
Book

Climatological Atlas of the World Ocean

TL;DR: A project to objectively analyze historical ocean temperature, salinity, oxygen, and percent oxygen saturation data for the world ocean has recently been completed at the National Oceanic and Atmospheric Administration's (NOAA) Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey.
Journal ArticleDOI

Spatial variability of turbulent mixing in the Abyssal Ocean

TL;DR: Ocean microstructure data show that turbulent mixing in the deep Brazil Basin of the South Atlantic Ocean is weak at all depths above smooth abyssal plains and the South American Continental Rise, which implies that abyssal circulations have complex spatial structures that are linked to the underlying bathymetry.
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