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

Nishiyama, Katsunobu; Inagawa, Masaru; Mizuno, Takanori

doi:10.2467/mripapers.44.1

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…It extends eastward to about 138°E in summer and in autumn, and suggests a cyclonic circulation on the Japan Basin (see Fig. 1) north of 40°N (Nitani, 1972;Ohwada and Tanioka, 1972;Nishiyama et al, 1993). On the other hand, the deepest region is found on the Yamato Basin through the four seasons.…”

Section: Seasonal Variation Of the Ujspw Corementioning

confidence: 97%

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

Senjyu

Sudo

1994

J Oceanogr

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All of the available hydrographic station data (temperature, salinity, dissolved oxygen, phosphate and nitrate) taken in various seasons from 1964 to 1985 are analyzed to show where the upper portion of the Japan Sea Proper Water (UJSPW) is formed and how it circulates. From vertical distributions of water properties, the Japan Sea Proper Water can be divided into an upper portion and a deep water at the σ 1 (potential density referred to 1000 db) depth of 32.05 kg m -3 surface. The UJSPW in the north of 40°N increases in dissolved oxygen contents and decreases in phosphate contents in winter, while no significant seasonal variation is seen in the south of 40°N. Initial nutrient contents calculated from relationships between AOU and nutrients on isopycnal surfaces show no significant regional difference in the Japan Sea; this suggests that the UJSPW has originated from a single water mass. From depth, dissolved oxygen and phosphate distributions on σ 1 32.03 kg m -3 surface, core thickness distribution and subsurface phosphate distribution, it is inferred that the UJSPW is formed by the wintertime convection in the region west of 136°E between 40° and 43°N, and advected into the region west of the Yamato Rise along the Continent; finally, it must enter into the Yamato Basin.

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Section: Seasonal Variation Of the Ujspw Corementioning

confidence: 97%

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

Senjyu

Sudo

1994

J Oceanogr

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“…Meanwhile, it is already known from the oceanographic observations covering the northern Japan Sea that the offshore extension of the EKWC exhibits an eastward flow along the Polar Front (Uda, 1934;Ohwada and Tanioka, 1972;Nishiyama et al, 1992). Then it seems to be quite reasonable to suppose that this eastward flow forms an anti-clockwise recirculation together with the southward flowing cold currents in the continental side and the northward flowing Tsushima Warm Current along the west coast of Hokkaido (Akagawa, 1955;Hata, 1962;Hatakeyama et al, 1985).…”

mentioning

confidence: 99%

Modeling of the wind-driven circulation in the Japan Sea using a reduced gravity model

Kim

Yoon

1996

J Oceanogr

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The surface circulation in the Japan Sea is investigated using a 1.5 layer reduced gravity model. Historical observations suggest strongly that an anti-clockwise circulation is dominant in the subpolar region north of the Polar Front as a general feature. This anti-clockwise circulation as well as the branching of the Tsushima Warm Current was simulated well by incorporating the Na et al. (1992)'s wind stress. The positive curl of the wind stress in the northern and the northwestern Japan Sea was found to play an important role in the formation of the subpolar gyre and the separation of the western boundary current (the East Korean Warm Current) in the Japan Sea.

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