Water Volume Transport Through the Taiwan Strait and the Continental Skelf of the East China Sea Measured with Current Meters

Fang, Guohong; Zhao, Bin; Zhu, Yaohua

doi:10.1016/s0422-9894(08)70107-7

Cited by 116 publications

(100 citation statements)

References 11 publications

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“…[17] Finally, we would like to remark that our hypothesis is consistent with previous studies [e.g., Fang et al, 1991] in the sense that SCSWC is dynamically connected with the Taiwan Strait Current, the Taiwan Warm Current, the Tsushima Warm Current and outflow from the Japan/East Sea through the Tsugaru Strait, and all these currents should be considered as local manifestation of a larger counterwind current system. But we differ from those previous studies in terms of cause-effect relationship among those currents.…”

Section: Discussion and Summarysupporting

confidence: 90%

“…This current was called the South China Sea Branch of Kuroshio (SCSBK) [Hsueh and Zhong, 2004] and is a part of the basin-wide cyclonic gyre over the whole South China Sea. The model-simulated transport through the Taiwan Strait is about 1.5 Sv, a bit smaller than the estimated value of 2 Sv from observations [Fang et al, 1991]. The transport through Luzon Strait is about 5.3 Sv, considerably higher than 3 ± 1 Sv estimated by Yaremchuk and Qu [2004].…”

Section: Forcing Of the South China Sea Warm Currentcontrasting

confidence: 54%

“…So the SCS is dynamically a downstream region to the forcing in the Taiwan Strait, which itself is a downstream region for variability in the ESC and the Tsushima Strait. This contrasts with some other studies that regarded the ECS and JES as downstream regions to the SCS [e.g., Fang et al, 1991]. Their definition was based on the flow direction since most of the counter-wind currents in the region are northward.…”

Section: Discussion and Summarymentioning

confidence: 81%

“…Guan [1986] proposed that the SCSWC is a part of the broader Winter Counterwind Currents (WCWC) off the southeastern coast of China. This was supported by Fang et al [1991], who further suggested its linkage to the Taiwan-Tsusgima-Tsugaru Warm Current system. Zhong [1990] proposed that the SCSWC is connected dynamically with the South China Sea Branch Current of Kuroshio (SCSBK) which is fed by the Luzon Strait intrusion and flows southward along the continental slope.…”

Section: Introductionmentioning

confidence: 77%

“…Their definition was based on the flow direction since most of the counter-wind currents in the region are northward. It has often postulated that the elevated sea surface height (SSH) in the SCS plays a role to push the counter-wind currents all the way from the SCS through the ECS to the JES [Guan and Fang, 2006;Fang et al, 1991]. Since the topographic Rossby waves travel southward along the bathymetry in this region and shallow-water gravity waves also travel southward along the sea-land boundary, external forcing or oceanic variability in the SCS could not affect directly the ECS and JES through local pathways.…”

Section: Discussion and Summarymentioning

confidence: 99%

See 4 more Smart Citations

On the dynamics of the South China Sea Warm Current

Yang¹,

Wu²,

Lin³

2008

J. Geophys. Res.

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The South China Sea Warm Current (SCSWC) flows northeastward over the shelf and continental slope in the northern South China Sea (SCS). This current persists in its northeastward direction in all seasons despite the fact that the annually averaged wind stress is decisively southwestward against it. Two major mechanisms have been proposed in previous studies, one attributing it directly to the wind stress forcing within the SCS and the other to the Kuroshio intrusion through the Luzon Strait. In this study we use a simple model to demonstrate that neither of them is the leading forcing mechanism. Instead, the SCSWC is a source‐ and sink‐driven flow induced by the Taiwan Strait Current (TSC), a year‐round northward flow through the Taiwan Strait. The two previously suggested mechanisms are important but secondary. The model simulations show that the local wind stress alone would force a current in the opposite direction to the SCSWC. Blocking the Kuroshio intrusion through the Luzon Strait, on the other hand, only weakens the SCSWC. The SCSWC vanishes when the Taiwan Strait is closed in the model.

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Section: Discussion and Summarysupporting

confidence: 90%

Section: Forcing Of the South China Sea Warm Currentcontrasting

confidence: 54%

Section: Discussion and Summarymentioning

confidence: 81%

Section: Introductionmentioning

confidence: 77%

Section: Discussion and Summarymentioning

confidence: 99%

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On the dynamics of the South China Sea Warm Current

Yang¹,

Wu²,

Lin³

2008

J. Geophys. Res.

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Meridional overturning circulation in the South China Sea envisioned from the high-resolution global reanalysis data GLBa0.08

Shu

Xue

Wang

et al. 2014

J. Geophys. Res. Oceans

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The pattern of meridional overturning circulation (MOC) in the South China Sea (SCS) is studied using a numerical Lagrangian tracing method with the HYCOM1NCODA Global 1/12 Analysis (GLBa0.08) data. The SCS MOC has a ''sandwich'' structure, which consists of a layer of stronger clockwise circulation above 500 m depth, a counterclockwise layer in the mid layer between 500 and 1000 m depth, and a weaker clockwise layer below 1000 m. The deep (below 1000 m depth) clockwise layer is divided into three cells, namely, the deep southern MOC cell, DSMOC; the deep middle MOC cell, DMMOC; and the unclosed deep northern MOC cell, DNMOC. The inflow through the Luzon Strait is the main source for the SCS MOCs. The upper layer Luzon Strait inflow dominates the upper SCS MOC structure but has relatively less contribution to the DNMOC, whereas the deep layer Luzon Strait inflow mainly influences the DNMOC and it mostly rises near 18 N. The inflow through the Taiwan Strait mainly contributes to the upper layer MOC. Moreover, inflows from the Mindoro and Karimata straits contribute negatively to the upper MOC but play a significant role on the DSMOC. The backward integration of Lagrangian trajectories further validates that the SCS deep water comes not only from the deep inflow but also from the entrainment of the middle and upper layer inflow through the Luzon Strait. In the SCS basin, there are three northwest-southeast tilted zones where tracers upwell, which correspond to the three deep MOC cells. One possible mechanism for these upwelling zones is the interaction between the continental slope-trapped waves and the westward planetary Rossby waves.

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Cross‐shelf exchange in the shelf of the East China Sea

et al. 2015

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A high-resolution, 3-dimensional primitive equation model is used to investigate the crossshelf exchange in the East China Sea (ECS). Favorable comparisons between field data and model simulations from both climatological run and hindcast run for 2006 indicate that the model has essential skills in capturing the key physics of the ECS. Temporal and spatial variations of the cross-shelf exchanges are further analyzed. It was demonstrated from both observations and simulations that in 2006 high saline water could be delivered to the north of the Changjiang River mouth (near 32 N) as a result of stronger than typical cross-shelf exchanges at the shelf break and flows through the Taiwan Strait with an annual mean rate of 2.59 and 1.83 Sv, respectively. A few new places at the shelf break were also identified where persistent and vigorous onshore or offshore exchanges occur throughout the year. Cross-shelf exchange is largely determined by the along-shelf geostrophic balance with weak seasonality, which is modulated in upper layers by northeasterly monsoon from early-fall to late-spring and at seabed by bottom friction during December-January, May, and August-September. Nonlinear effect, with strong spatial variations and intraseasonal variability, is a secondary but persistent contributor to the net seaward transport, except for northeast of Taiwan where the nonlinear effect becomes significant but more varied.

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Water Volume Transport Through the Taiwan Strait and the Continental Skelf of the East China Sea Measured with Current Meters

Cited by 116 publications

References 11 publications

On the dynamics of the South China Sea Warm Current

On the dynamics of the South China Sea Warm Current

Meridional overturning circulation in the South China Sea envisioned from the high-resolution global reanalysis data GLBa0.08

Cross‐shelf exchange in the shelf of the East China Sea

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