The upper portion of the Japan Sea Proper Water; Its source and circulation as deduced from isopycnal analysis

1994 ◽  
Vol 50 (6) ◽  
pp. 663-690 ◽  
Author(s):  
Tomoharu Senjyu ◽  
Hideo Sudo
Keyword(s):  
Japan Sea ◽  
Japan Sea Proper Water ◽  
The Japan Sea

scholarly journals The Japan Sea Proper Water and Water Circulation in the Japan Sea.

1993 ◽  
Vol 44 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Katsunobu Nishiyama ◽  
Masaru Inagawa ◽  
Takanori Mizuno
Keyword(s):  
Japan Sea ◽  
Water Circulation ◽  
Japan Sea Proper Water ◽  
The Japan Sea

New insights into the latitudinal ventilation variations in the Japan Sea since the Last Glacial Maximum: A radiolarian assemblage perspective

2020 ◽  
Author(s):  
Zhi Dong ◽  
Xuefa Shi ◽  
Jianjun Zou ◽  
Yanguang Liu ◽  
Ruxi Dou ◽  
...  
Keyword(s):  
Deep Water ◽  
Coastal Upwelling ◽  
Sediment Cores ◽  
Japan Sea ◽  
Volume Transport ◽  
The North ◽  
Radiolarian Assemblage ◽  
Basin Scale ◽  
Japan Sea Proper Water ◽  
The Japan Sea

<p>The formation of intermediate and deep water plays a key role in regulating climate changes at a variety of time scales through the heat redistribution and carbon cycling. The Japan Sea has unique water-mass characteristics in the North Pacific with its own deep-water formation within the Sea itself called Japan Sea Proper Water (JSPW). Latitudinal ventilation changes in the Japan Sea were reconstructed using radiolarian assemblage from three sediment cores, extending from the southwestern, central to northwestern Japan Sea. Here, we present downcore faunal records spanning the last 25 ka as well as other existing ventilation records in the Japan Sea, and provide reliable evidence to evaluate the potential controlling mechanism that lead to onset and interruption of JSPW ventilation. Taking all together, we argue that radiolarian assemblage records have revealed a distinct basin-scale transition in deep-water conditions from anoxic to oxic during the deglaciation related to changing surface hydrography. However, it should be recognized that there is significant potential for bias in the timing of the ventilation changes among regions. Deep ventilation in the central Japan Sea has been in an interglacial mode during the Bølling/Allerød presumably related to northward volume transport of the Tsushima Warm Current. Moreover, the decrease of JSPW Assemblage at the B/A in southwestern Japan Sea was attributed to higher export productivity, facilitating suboxic deepwater condition through enhanced consumption of oxygen, which was probably caused by coastal upwelling. In contrast, the weakening ventilation of the northwestern Japan Sea during the B/A and YD periods was probably caused by the blocking effect of the sea ice. Note: This study was supported by the National Natural Science Foundation of China (Grant No. 41420104005, U1606401) and National Program on Global Change and Air-Sea Interaction (GASI-GEOGE-04).</p>

A note on the Japan Sea Proper Water

1986 ◽  
Vol 17 (3-4) ◽  
pp. 313-336 ◽  
Author(s):  
Hideo Sudo
Keyword(s):  
Japan Sea ◽  
Japan Sea Proper Water ◽  
The Japan Sea

scholarly journals New ostracod (Crustacea) species of the genus <i>Robertsonites</i> from the Upper Pliocene Kuwae and Sasaoka formations, central and northeast Japan

2003 ◽  
Vol 22 (2) ◽  
pp. 169-181 ◽  
Author(s):  
Katsura Yamada
Keyword(s):  
New Taxa ◽  
Northern Hemisphere ◽  
High Latitude ◽  
Water Mass ◽  
Japan Sea ◽  
The Sea Of Japan ◽  
Central Japan ◽  
Marine Deposits ◽  
Japan Sea Proper Water ◽  
The Japan Sea

Abstract. The ostracod genus Robertsonites is widely distributed in high-latitude seas of the Northern Hemisphere. It also occurs abundantly in Plio-Pleistocene strata along the coast of the Sea of Japan, which were deposited under the influence of the Japan Sea Proper Water mass, below 150 m. The assemblages of the genus Robertsonites in the seas around Japan are quite different from those in the high-latitude seas of the Northern Hemisphere. A difference in the valve outlines of the genus in the two areas is also apparent. Nine species of the genus Robertsonites are restricted to strata and marine deposits around Japan, although only 12 species have been described world-wide, including the three new taxa described here. The Upper Pliocene Sasaoka and Kuwae formations in northeast and central Japan, contain seven species, including three new taxa, Robertsonites irizukii sp. nov., Robertsonites leptoreticulata sp. nov., and Robertsonites tabukii sp. nov., and one open-nomenclature taxon.

A New Phaeodarian Species Discovered from the Japan Sea Proper Water, Auloscena pleuroclada sp. nov. (Aulosphaeridae, Phaeosphaerida, Phaeodaria)

2015 ◽  
Vol 63 (2) ◽  
pp. 271-274 ◽  
Author(s):  
Yasuhide Nakamura ◽  
Ichiro Imai ◽  
Akihiro Tuji ◽  
Noritoshi Suzuki
Keyword(s):  
Japan Sea ◽  
Japan Sea Proper Water ◽  
The Japan Sea
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