Estimation of bottom friction coefficient for a 2 - d nonlinear tidal model of the bohai sea by the adjoint method 利用伴随同化方法估计渤海潮汐模式的底摩擦系数
Based on the simulation of the m2 tide in the bohai , yellow and east china seas , numerical experiments are made to study 4 strategies on the bottom friction coefficient ( bfc ) in a numerical adjoint model 摘要使用伴随同化方法探讨了四种底摩擦系数处理方法并模拟了渤黄东海的m2分潮。
The fourth method which takes the bfc in each grid point as an independent bfc simulates practical experiments best and demonstrates the reasonability and efficiency of this method 本文的第四种方法将每一点均作为独立的底摩擦系数,在实验中获得了成功,验证了这种方法的合理性和有效性。
The nonlinear interation induced tidal period and water level fluctuation obviously . the bottom friction effect is direct ratio to the bottom friction coefficient . the bottom friction effect reduces the set up water level , and minish the set up 非线性效应是造成风暴潮增水水位明显波动的原因,底摩擦效应对潮位的贡献与底摩擦系数成正比,底摩擦效应使增水水位降低,减小了增水的幅度。