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東海의 海底地形 및 密度成層變化에 의한 포텐샬 와도에 관한 연구 KCI 등재

Potential Vorticity in the East Sea(Japan Sea) due to Density Stratification and Topography

동해의 해저지형 및 밀도성층변화에 의한 포텐샬 와도에 관한 연구

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  • URLhttps://db.koreascholar.com/Article/Detail/340790
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한국지구과학회지 (The Journal of The Korean Earth Science Society)
한국지구과학회 (The Korean Earth Science Society)
초록

Fluid in a rotating coordinate generally flows along equi-potential vorticity line. Without disturbances such as dissipation, rapid vertical mixing, and external forcing such as energy exchanges, potential vorticity is conserved in the thermally and dynamically closed system. This study is the first trial to investigate the potential vorticity in the East Sea. The purpose of this study is to show the distribution of the potential vorticity due to the variation of sea water density and topography in baroclinic and barotropic conditions. The conclusions are given as follows. First, vertical mixing is well striking in February than in August, and flow patterns in February are different from those in August. Secondly, contour lines of isotrophe is similar to bottom topography, while potential vorticity is similar to the distribution of dynamic topography. Thirdly, the circulation of the East Sea Water flows approximately along contours of potential vorticity in the region of high baroclinicity and along those of isotrophe in other region.

저자
  • 이성진
  • 안희수