Recent observations in the straits of the East/Japan Sea: A review of hydrography, currents and volume transports

Na, Hanna; Isoda, Yutaka; Kim, Kuh; Kim, Young Ho; Lyu, Sang Jin

doi:10.1016/j.jmarsys.2009.02.018

Cited by 33 publications

(12 citation statements)

References 45 publications

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“…The large variance along the west coast of Japan suggests that the variation of the Tsushima Warm Current is an important component of the seasonal cycle. The timing of a maximum heat content anomaly in September–October and a minimum in February–March is consistent with seasonal variations in the mass transport of the Tsushima Warm Current [ Takikawa et al , 2005; Na et al , 2009], supporting the idea that variation in the Tsushima Warm Current drives the seasonal cycle of heat content in the EJS.…”

Section: Upper Ocean Heat Content Variability In the East/japan Seasupporting

confidence: 59%

“…The East/Japan Sea (the EJS hereafter) is a semienclosed marginal sea in the northwestern Pacific (Figure 1). While its dynamics, such as bottom water formation and deep circulation, are to a large extent separated from the neighboring seas [ Kim et al , 2004], it is connected with the neighboring seas through straits [ Cho et al , 2009; Na et al , 2009]. The maximum sill depth of the straits is shallower than 300 m; the maximum depth of the basins in the EJS, on the other hand, is deeper than 3000 m (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

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Decadal variability of the upper ocean heat content in the East/Japan Sea and its possible relationship to northwestern Pacific variability

Kim

Chang

et al. 2012

J. Geophys. Res.

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[1] The upper ocean heat content variability in the East/Japan Sea was investigated using a 40 year temperature and salinity data set from 1968 to 2007. Decadal variability was identified as the dominant mode of variability in the upper ocean (0-300 m) aside from the seasonal cycle. The decadal variability is strong to the west of northern Honshu, west of the Tsugaru Strait, and west of southern Hokkaido. Temperature anomalies at 50-125 m exhibit a large contribution to the decadal variability, particularly in the eastern part of the East/Japan Sea. The vertical structure of regressed temperature anomalies and the spatial patterns of regressed 10°C isotherms in the East/Japan Sea suggest that the decadal variability is related to upper ocean circulation in the East/Japan Sea. The decadal variability also exhibits an increasing trend, which indicates that the regions showing large decadal variations experienced warming on decadal time scales. Further analysis shows that the decadal variability in the East/Japan Sea is not locally isolated but is related to variability in the northwestern Pacific.

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Section: Upper Ocean Heat Content Variability In the East/japan Seasupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Decadal variability of the upper ocean heat content in the East/Japan Sea and its possible relationship to northwestern Pacific variability

Kim

Chang

et al. 2012

J. Geophys. Res.

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“…A contribution of the transport at TTR (0.016 Sv) is very small. The ratios of the outflow transports to the inflow through TSM are thus estimated at 70 and 29 % for TGR and SOY, respectively, which are consistent with former estimates (Cho et al 2009;Na et al 2009). …”

Section: Japan Seasupporting

confidence: 88%

“…This is why a number of observational studies have attempted to estimate an accurate volume transport through each strait (e.g., Fukudome et al 2010;Ito et al 2003;Fukamachi et al 2010). Recent observational efforts are well summarized in Na et al (2009).…”

Section: Japan Seamentioning

confidence: 99%

Four-dimensional variational ocean reanalysis: a 30-year high-resolution dataset in the western North Pacific (FORA-WNP30)

et al. 2016

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“…The Tsushima Warm Water (TWW) and the Korea Strait Bottom Cold Water (KSBCW) are the major water masses in the Korea Strait, which is divided into the western channel and the eastern channel by Tsushima Island (Figure 1). The different origins and characteristics of these water masses and the related currents in the Korea Strait have been extensively studied and reviewed [ Sugimoto , 1990; Chang et al , 2004; Teague et al , 2006; Na et al , 2009]. The Tsushima Warm Current flows northward through the Korea Strait into the Sea of Japan (East Sea) and supplies warm and saline water, the TWW (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Interannual variability of the Korea Strait Bottom Cold Water and its relationship with the upper water temperatures and atmospheric forcing in the Sea of Japan (East Sea)

Na¹,

Kim²,

Chang³

et al. 2010

J. Geophys. Res.

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[1] A 35 yearlong temperature data set is analyzed to investigate the long-term temperature variability in the Korea Strait and its relationship with the temperature variability in the upper layer of the Sea of Japan (East Sea). The second cyclostationary empirical orthogonal function mode of the vertical temperature section in the Korea Strait describes the interannual variability of the Korea Strait Bottom Cold Water (KSBCW). According to the corresponding principal component time series, the strength of the KSBCW fluctuates yearly with a major spectral peak around 3 years. Multiple regression analysis shows that the interannual KSBCW variability is closely linked with the temperature variability in the southwestern region of the Sea of Japan (East Sea) at about 50-100 m depth. Along 40°N, the source of the KSBCW is traced at about 50 m, extending eastward from the east coast of Korea to about 135°E. At 37°N, the source is traced at a deeper level (about 50-100 m), confined more toward the east coast of Korea with a hint of double core characteristics. The interannual KSBCW variability is also related to the southward wind stress along the east coast of Korea. It appears that strong cooling/warming of upper water temperature induced by the basin-scale wind stress results in the interannual KSBCW variability. This connection is verified by showing a reasonable interannual covariability between the KSBCW and the basin-scale wind stress.

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Recent observations in the straits of the East/Japan Sea: A review of hydrography, currents and volume transports

Cited by 33 publications

References 45 publications

Decadal variability of the upper ocean heat content in the East/Japan Sea and its possible relationship to northwestern Pacific variability

Decadal variability of the upper ocean heat content in the East/Japan Sea and its possible relationship to northwestern Pacific variability

Four-dimensional variational ocean reanalysis: a 30-year high-resolution dataset in the western North Pacific (FORA-WNP30)

Interannual variability of the Korea Strait Bottom Cold Water and its relationship with the upper water temperatures and atmospheric forcing in the Sea of Japan (East Sea)

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