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CHOI Youngjin. 2015. Comparative simulation study of effects of eddy-topography interaction in the East/Japan Sea deep circulation. Acta Oceanologica Sinica, 34(7):1-18
Comparative simulation study of effects of eddy-topography interaction in the East/Japan Sea deep circulation
Received:May 27, 2014  Revised:October 10, 2014
DOI:10.1007/s13131-015-0693-1
Key words:East/Japan Sea  deep mean current  seasonal variability  ocean general circulation model  eddytopography interaction
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Author NameAffiliationE-mail
CHOI Youngjin Center for Earth Information Science and Technology, Japan Agency for Marine-Earth Science and Technology, Yokohama 236-0001, Japan
GeoSystem Research Corporation, Gyeonggi-do 435-824, Korea 
himrchoi@gmail.com 
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Abstract:
      In this study the structure and seasonal variations of deep mean circulation in the East/Japan Sea (EJS) were numerically simulated using a mid-resolution ocean general circulation model with two different parameterizations for the eddy-topography interaction (ETI). The strong deep mean circulations observed in the EJS are well reproduced when using the ETI parameterizations. The seasonal variability in the EJS deep layer is shown by using ETI parameterization based on the potential vorticity approach, while it is not shown in the statistical dynamical parameterization. The driving mechanism of the strong deep mean currents in the EJS are discussed by investigating the effects of model grids and parameterizations. The deep mean circulation is more closely related to the baroclinic process and potential vorticity than it is to the wind driven circulation.
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