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Numerical Si mulation of Transportation of SPMfrom the Yellow River to the Bohai Sea

李国胜;董超;王海龙

  A3D diagnostic model including a suspended sediment transport module,ECOMSED,driven by the monthly dis-charge and sediment load of the Yellow River in1983~1984,was applied to the Bohai Sea.The simulation of the tem-poral-spatial variation of SPM(Suspended Particular Matter)concentration,sediment flux,and deposition rate was car-ried out.It could be seen that,the SPM concentration exhibited distinct seasonal variation,and the variation characteris-tic was similar for two years.Some of the fine sediment of the Yellow River extended to the western bank of the Liaodong Bay,but most of the sediment deposited around the estuary of the Yellow River,the deposition flux rapidly decreasing with the increasing distance to the estuary.The deposition rate kept at0.05~0.1mm/a for most area,close to the in-situ data.There were two areas of high SPM concentration in the Bohai Sea,one of which could be attributed to the Yel-low River discharge,and another one,located at the seas with intensive resuspension power,to the tidal current energy.The sediment from the Yellow River was transported mainly along the track of the Lagrangian residual circulations.In one word,the suspended load transport was basically attributed to the wind-driven and tidal-induced Lagrangian residual cir-culations.The resuspension flux was related to the bottom currents:the larger the current speed,the more the sediment resuspended.……   
[关键词]:the Yellow River;suspended load;3-D numerical modeling;temporal-spatial variation
[文献类型]:期刊
[文献出处]: 《China Ocean Engineering2006年01期
[格式]:PDF原版; EPUB自适应版(需下载客户端)
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