【摘要】 本文介绍了一个应用于珠江口的河海联合台风暴潮数值计算模式,它基本建立于海洋的二维全流风暴潮模式及河道一维的圣维南方程之上。具体计算中,对河流的断面概化、网河区的平均流量选取及大风半径的优化等作了适当的处理,并在上述基础上,对三场台风引发的风暴潮作了计算。计算结果与沿岸的五个测站的实测结果作了对比,结果表明,本文所建立的模型能较好地反映珠江口台风暴潮的特点。更多还原

【Abstract】 A mathematical of river-sea system model to reproduce typhoon surge in the Pearl River Estuary is introduced.The model is based on a two-dimensional mo-dels for the sea and one-dimensional models for the river representing motion of typhoon surge in the area.Computation have been concerned with generalized cr-oss profile for the river,extracted the yearly volume of flow at the river system,and optimized the calculation radius of maximum wind for a concerning tropical cyclone.On the basis of above,the sea-level disturbances for several typhoons hasbeen computed.In comparison with the actual record of some stations along the coast,were found that the model has good potential for simulating typhoon surge which occur in the Pearl River Estuary.更多还原