The Formation and Circulation of the Intermediate Water in the Japan Sea |
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Authors: | Jong-Hwan Yoon Hideyuki Kawamura |
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Institution: | (1) Research Institute for Applied Mechanics, Kyushu University, Kasuga, Fukuoka 816-8580, Japan;(2) Department of Earth System Science and Technology, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan |
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Abstract: | In order to clarify the formation and circulation of the Japan/East Sea Intermediate Water (JESIW) and the Upper portion of
the Japan Sea Proper Water (UJSPW), numerical experiments have been carried out using a 3-D ocean circulation model. The UJSPW
is formed in the region southeast off Vladivostok between 41°N and 42°N west of 136°E. Taking the coastal orography near Vladivostok
into account, the formation of the UJSPW results from the deep water convection in winter which is generated by the orchestration
of fresh water supplied from the Amur River and saline water from the Tsushima Warm Current under very cold conditions. The
UJSPW formed is advected by the current at depth near the bottom of the convection and penetrates into the layer below the
JESIW. The origin of the JESIW is the low salinity coastal water along the Russian coast originated by the fresh water from
the Amur River. The coastal low salinity water is advected by the current system in the northwestern Japan Sea and penetrates
into the subsurface below the Tsushima Warm Current region forming a subsurface salinity minimum layer.
This revised version was published online in August 2006 with corrections to the Cover Date. |
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Keywords: | Japan/East Sea Intermediate Water High Salinity Intermediate Water Upper portion of the Japan Sea Proper Water Tsushima Warm Current winter convection water mass formation |
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