长江河口分汊耦合系统盐度的多因子响应研究

The view of coupled system was used to treat the special phenomenon of local salinity variation, and the saline water intrusion in a complicated bifurcation estuary was sum up several typical regulars. A 3-D numerical model in the Changjiang estuary with fitted grids was established, the relationship of responds of several typical phenomenon on the dynamical factors and topography was gotten through the combination of observation data analyze and numerical experiments. The inner mechanism of salinity variation in the coupled system of the Changjiang estuary and the evolution regulars were further revealed that can be used in projects and water resource utilize in the Changjiang estuary.

用耦合系统的观点来看待局部盐度变化的特殊现象，把复杂的分汊河口盐水入侵研究归结为从几个典型的规律入手；建立长江口大范围适应型网格三维数值模型，通过实测资料分析和设计多项数值试验相结合，得到几个典型现象对动力因子及地形的响应关系，进而揭示长江口分汊耦合系统盐度变化的内在机制及演变规律，为长江口工程措施和淡水资源利用服务。.