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http://dx.doi.org/10.7850/jkso.2007.12.4.390

Mixing of Sea Waters in the Northern Part of the East China Sea in Summer  

Jang, Sung-Tae (Marine Environment Research Department, Korea Ocean Research and Development Institute)
Lee, Jae-Hak (Marine Environment Research Department, Korea Ocean Research and Development Institute)
Hong, Chang-Su (Marine Environment Research Department, Korea Ocean Research and Development Institute)
Publication Information
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY / v.12, no.4, 2007 , pp. 390-399 More about this Journal
Abstract
In order to investigate the mixing of sea waters on the continental shelf in the northern East China Sea, Korea Ocean Research and Development Institute conducted hydrographic surveys including turbulence measurements using the R/V Eardo in August 2005 and August 2006. The turbulent kinetic energy dissipation rates based on velocity shear measurements are estimated to be $10^{-7}{\sim}10^{4}$, $10^{-7}{\sim}10^{-6}$, and $10^{-7}$ W/kg in the surface layer, bottom layer, and lower thermocline, respectively. The data sets suggest that surface layer water is being constantly mixed by winds. High dissipation rate in the lower thermocline seems to be caused by internal waves. The bottom layer with high dissipation rate also shows high turbidity, indicating the effect of tidal stirring turbulence. The vertical eddy diffusivities are $10^{-3}{\sim}10^{-2}m^2/s$ near the bottom, and these high values appear to arise from both the low stability and high turbulent mixing.
Keywords
East China Sea; Mixing; The turbulent kinetic energy dissipation rate; $Brunt-V\"{a}is\"{a}l\"{a}$ frequency; Vertical eddy diffusivity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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