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KMID : 1024520030120090943
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Journal of the Environmental Sciences
2003 Volume.12 No. 9 p.943 ~ p.948
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Spatial Variation of the Polar Front in relation to the Tsushima Warm Current in the East Sea
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Lee Chung-Il
Cho Kyu-Dae
Choi Yong-Kyu
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Abstract
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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.
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KEYWORD
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East Sea, Folar front, Tsushima Warm Current, Noto peninsula
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