Spatial Variation of the Polar Front in relation to the Tsushima Warm Current in the East Sea

동해에서 쓰시마난류의 변동과 관련한 극전선의 공간적 변화

  • 이충일 (부경대학교 해양산업개발연구소) ;
  • 조규대 (부경대학교 해양학과) ;
  • 최용규 (국립수산과학원 남해수산연구소)
  • Published : 2003.09.01


Variation of the polar front in the East Sea is studied using temperature and dissolved oxygen data obtained from Japan Meteorological Agency from 1972 to 1999. Variation of the polar front in the East Sea has a close relation to the variation of the Tsushima Warm Current (TWC). When the TWC spreads widely in the East Sea, polar front moves northward. The spatial variation of the polar front is greater in the southwestern area of the East Sea and the northern area of Tsugaru Strait where the variation of the TWC's distribution area is greater than those in others of the East Sea. Hence, in the southeastern area of the East Sea, that is, between near Noto peninsula and Tsugaru Strait, the spatial variation of the polar front is not so wide as in the southwestern area because the flow of TWC is stable.


East Sea;Folar front;Tsushima Warm Current;Noto peninsula


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