Water mass formation variability in the intermediate layer of the east sea |
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| Authors: | Hong Sik Min Cheol -Ho Kim |
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| Institution: | (1) Marine Environment Research Department, KORDI, P.O. Box 29, 425-600 Ansan, Seoul, Korea |
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| Abstract: | Long-term variability in the intermediate layer of the eastern Japan Basin has been investigated to understand the variability
of water mass formation in the East Sea. The simultaneous decrease of temperature at shallower depths and oxygen increasing
at deeper depths in the intermediate layer took place in the late 1960’s and the mid-1980’s. Records of winter sea surface
temperatures and air temperatures showed that there were cold winters that persisted for several years during those periods.
Therefore, it was assumed that a large amount of newly-formed water was supplied to the intermediate layer during those cold
winters. Close analysis suggests that the formation of the Upper Portion of Proper Water occurred in the late 1960’s and the
Central Water in the mid-1980’s. |
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| Keywords: | long-term variability East Sea water mass formation intermediate water mass water property |
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