摘要
一阶有限元浅水方程的伴随模式应用于气象资料同化场，并利用最优化方法对具有随机扰动的初始场进行优化处理。通过极小化算法，使所定义的目标函数达到最小，从而得到最优的气象要素初始场。
The adjoint model of the first order finite element shallow water equation is applied to the variation data assimilation in the meteorological data field.The initial conditions with the random perturbations are treated optimally.Through the minimization algorithm the defined objective function reaches the minimal values and the optimal initial conditions are obtained.The results of the numerical experiments show that this kind of treatment is very efficient.
基金
国家自然科学基金
关键词
变分资料同化
有限元
气象资料
浅水模式
objective function
variation data assimilation
adjoint model
