黄河口海洋动力特性与泥沙的输移扩散

Characteristics of ocean dynamics and sediment diffusion in the Yellow River estuary

本文首先对黄河口潮流、余流、风暴潮等海洋动力进行了分析，在此基础上进一步分析了黄河口泥沙的输移方向与数量，指出黄河口的泥沙在洪枯季节综合的结果是向东北方向扩散，在目前河口海洋动力条件下，有大约４０％的泥沙输往深海．本文还提出了选择最佳河口流路入海方向，充分利用河口海洋动力，提高海流输沙量。

Based on the analysis of ocean dynamics, such as tidal current, residual current and storm tide, etc., the quantity and direction of sediment movement in the offshore area of the Yellow River estuary are studied. The sediment diffuses towards northeast under the comprehensive actions in flood and non flood seasons and 40% of which can be transported to the deep sea. Correspondingly, the optimum tendency of river course is proposed, which can fully utilize the ocean dynamics to transport more sediment, and can maintain stable river course of the Yellow River estuary.