波浪与潮流对潮滩悬沙含量贡献的现场观测
发布时间：2018-09-13 13:34
【摘要】：通过实时观测黄河口洪季(9月)潮滩潮周期内悬沙浓度和波潮流等水动力因素的变化,并结合边界层悬浮物剖面测量仪(ASM-4)数据,讨论了悬沙浓度在潮周期内的变化及其影响因素,计算了再悬浮通量、分析了悬沙浓度的垂向分布特征。结果表明,一级海况下海流对再悬浮的贡献较大,二级海况下波浪对再悬浮的贡献较大。观测点悬沙浓度多以浓度峰的形式出现,既有潮流冲刷床面所引起的悬沙浓度峰,也存在由波致再悬浮和潮流输运所引起的悬沙浓度峰。
[Abstract]:The changes of hydrodynamic factors such as suspended sediment concentration and wave current during the tidal cycle of the Yellow River Estuary during the flood season (September) are observed in real time, and the data of the boundary layer suspended matter profiler (ASM-4) are combined. The variation of suspended sediment concentration in the tidal cycle and its influencing factors are discussed. The resuspension flux is calculated and the vertical distribution characteristics of suspended sediment concentration are analyzed. The results show that the current has a great contribution to the resuspension in the first order sea condition, and the wave to the resuspension in the second order sea condition. The suspended sediment concentration in observation points appears in the form of concentration peaks, both caused by tidal current scouring bed surface, and also by wave-induced re-suspension and tidal current transport.
【作者单位】： 中国海洋大学环境科学与工程学院;青岛海洋科学与技术国家实验室;山东省海洋环境地质工程重点实验室;
【基金】：国家自然科学基金项目(41072215) 中国地质调查局海洋地质调查项目(GZH201100203)
【分类号】：P714;P737.1
，
本文编号：2241322
[Abstract]:The changes of hydrodynamic factors such as suspended sediment concentration and wave current during the tidal cycle of the Yellow River Estuary during the flood season (September) are observed in real time, and the data of the boundary layer suspended matter profiler (ASM-4) are combined. The variation of suspended sediment concentration in the tidal cycle and its influencing factors are discussed. The resuspension flux is calculated and the vertical distribution characteristics of suspended sediment concentration are analyzed. The results show that the current has a great contribution to the resuspension in the first order sea condition, and the wave to the resuspension in the second order sea condition. The suspended sediment concentration in observation points appears in the form of concentration peaks, both caused by tidal current scouring bed surface, and also by wave-induced re-suspension and tidal current transport.
【作者单位】： 中国海洋大学环境科学与工程学院;青岛海洋科学与技术国家实验室;山东省海洋环境地质工程重点实验室;
【基金】：国家自然科学基金项目(41072215) 中国地质调查局海洋地质调查项目(GZH201100203)
【分类号】：P714;P737.1
，
本文编号：2241322
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