Basing on different hydraulic characteristics of flood and ebb tide,the Manning Coefficient was calibrated separately to calculate water level and discharge at each section on successive periods using the Saint-Venant equations with differential method.

• 该模型将Sa in t-V enan t方程组进行求解,并根据涨、落潮流的水动力特性,分别进行涨、落潮糙率率定,准确计算出逐时段河道各断面的水位和流量。