A numerical experiment on the sedimentation processes in the Yellow Sea and the East China Sea

Yanagi, Tetsuo; Inoue, Koh-ichi

doi:10.1007/bf02270523

Cited by 25 publications

(8 citation statements)

References 10 publications

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“…For M 2 tide, four amphidromic points are reproduced well, two of which lie in the Bohai Sea and another two of which lie in the YS. The positions are almost the same as the observed ones (Yanagi and Inoue 1994). For K 1 tide, positions of two amphidromic points are also reproduced well in the Bohai Sea and the YS.…”

Section: Tidessupporting

confidence: 80%

Summer surface layer thermal response to surface gravity waves in the Yellow Sea

et al. 2012

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The Princeton Ocean Model (POM) with generalized coordinate system (POMgcs) is used to study the summer surface-layer thermal response to surface gravity waves in the Yellow Sea (YS). The parameterization schemes of wave breaking developed by Mellor and Blumberg (J Phys Oceanogr 34: [693][694][695][696][697][698] 2004) and Kantha and Clayson (Ocean Model 6:101-124, 2004), respectively, and Stokes production developed by Kantha and Clayson (Ocean Model 6:101-124, 2004) are both included in the Mellor-Yamada turbulence closure model Mellor and Yamada (Rev Geophys 20:851-875, 1982) of POMgcs. Numerical results show that surface gravity waves impact the depth of surface mixed layer of temperature in the YS in summer. The surface mixed layer in the YS cannot be reproduced well and has a visible difference from the observation if the parameterization schemes are not included. A diagnostic analysis of turbulent kinetic energy suggests that both Stokes production and wave breaking play key roles in enhancing the turbulent mixing near the sea surface in the YS. Stokes production seems to have a greater impact throughout the upper mixed layer in the YS in summer than that of wave breaking. In addition, a diagnostic analysis of the momentum balance shows that Coriolis-Stokes forcing has a significant effect on the momentum budget in the upper layer in the YS, and surface gravity waves are able to reduce the velocity of mean flow near the surface and make the mean flow near the surface more homogeneous vertically in the YS.

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Section: Tidessupporting

confidence: 80%

Summer surface layer thermal response to surface gravity waves in the Yellow Sea

et al. 2012

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“…Transport directions of sediments and typical minerals were similar to the residual currents in the Bohai Sea (Zhao et al, 1995). Some researchers attempted to study the relationship between sediment distribution characteristics and ocean dynamics and the wind forcing (Jiang et al, 1997(Jiang et al, , 2002Sun, 2000, 2001;Wang and Gao, 2002;Wu and Wang, 2002;Yanagi and Inoue, 1995). However, primary researches and results were qualitatively analyzed on some limited field works or particle tracking simulations in the past, therefore it is difficult to achieve a complete understanding about spatio-temporal variability and mechanisms of suspended transport of sediment discharged from the Yellow River to the Bohai Sea because restriction of the coverage of field data in time and space.…”

Section: Introductionmentioning

confidence: 98%

Numerical simulation on seasonal transport variations and mechanisms of suspended sediment discharged from the Yellow River to the Bohai Sea

Wang

2010

J. Geogr. Sci.

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Based on sediment and discharge flux data for the Yellow River, realistic forcing fields and bathymetry of the Bohai Sea, a suspended sediment transport module is driven by a wave-current coupled model to research seasonal variations and mechanisms of suspended load transport to the Bohai Sea. It could be concluded that surface sediment concentration indicates a distinct spatial distribution characteristic that varies seasonally in the Bohai Sea. Sediment concentration is rather high near the Yellow River estuary, seasonal variations of which are controlled by quantity of sediment from the Yellow River, suspended sediment concentration reaches its maximum during summer and fall. Furthermore, sediment concentration decreases rapidly in other seas far from the Yellow River estuary and maintains a very low level in the center of the Bohai Sea, and is dominated by seasonal variations of climatology wind field in the Bohai Sea. Only a small amount of sediments imported from the Yellow River are delivered northwestward to the southern coast of the Bohai Bay. Majority of sediments are transported southeastward to the Laizhou Bay, where sediments are continuously delivered into the center of the Bohai Sea in a northeastward direction, and part of them are transported eastward alongshore through the Bohai Strait. 69% of sediments from the Yellow River are deposited near the river delta, 31% conveyed seaward, within which, 4% exported to the northern Yellow Sea through the Bohai Strait. Wind wave is the most essential contributor to seasonal variations of sediment concentration in the Bohai Sea, and the contribution of tidal currents is also significant in shallow waters when wind speed is low.

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“…Such currents can readily suspend near shore sediments Yuan et al, 2008b]. The tidal residual current speed is much smaller (2-3 cm/s), but it is thought to have a significant effect on the long-term sediment transport in the BYECS Milliman et al, 1985a;Pang et al, 2004;Sternberg et al, 1985;Yanagi and Inoue, 1995]. In the BYECS, strong northerly monsoon winds dominate the winter time with an average wind speed of 5-10 m/s, while weak southerly monsoon winds generally prevail in summer with an average wind speed of 4-7 m/s.…”

Section: Introductionmentioning

confidence: 99%

An exploratory model study of sediment transport sources and deposits in the Bohai Sea, Yellow Sea, and East China Sea

Bian

Jiang

Greatbatch

2013

J. Geophys. Res. Oceans

164

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A regional ocean circulation model (ROMS) is used to simulate the Chinese land‐derived sediment transport in the Bohai Sea, Yellow Sea, and East China Sea (BYECS). The model includes the effect of currents, tides, and waves on the sediment transport and is used to study the pathway and dynamic mechanisms of the fine‐grain sediment transport from the Huanghe River (Yellow River), the Old Huanghe Delta, and the Changjiang River (Yangtze River) in the BYECS. The seasonal variability of the sediment transport in the BYECS and the sources of the Yellow Sea Trough mud patch, the mud patch southwest of Cheju Island, the mud patch offshore from the Zhejiang and Fujian provinces and the Okinawa Trough mud patch are discussed. The results show that the Huanghe River sediment can be transported to the Yellow Sea Trough, but little makes it to the outer shelf while the Old Huanghe Delta sediment is mainly transported to the Yellow Sea Trough. Most of the sediment from the Changjiang River mouth is carried to the mud patch off the coast of the Zhejiang and Fujian provinces but with part of this sediment also transported to the Yellow Sea Trough. The model shows that it is difficult to transport land‐derived sediment to the Okinawa Trough mud patch under normal conditions. The model also has difficulty accounting for the deposition of sediment in the region to the southwest of Cheju Island and offshore from the Zhejiang and Fujian provinces, an issue requiring further study.

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A numerical experiment on the sedimentation processes in the Yellow Sea and the East China Sea

Cited by 25 publications

References 10 publications

Summer surface layer thermal response to surface gravity waves in the Yellow Sea

Summer surface layer thermal response to surface gravity waves in the Yellow Sea

Numerical simulation on seasonal transport variations and mechanisms of suspended sediment discharged from the Yellow River to the Bohai Sea

An exploratory model study of sediment transport sources and deposits in the Bohai Sea, Yellow Sea, and East China Sea

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