中尺度MM4模式及其伴随模式

An adjoint model with a mesoscale MM4 model

伴随方法是以数值天气预报的动力模式作为约束条件的变分方法 ,相对传统的资料同化方法有很大的进步。介绍美国NCAR的中尺度MM4模式及其它的伴随模式MAMS1,它以一个有限区域的中尺度非线性预报模式为基础 。

The adjoint method is a variational technique based on the dynamical model as the constrained conditions in numerical weather prediction. A great progress is made to the traditional data assimilation technique. An adjoint model(MAMS1) of mesoscale model in NCAR which is a regional mesoscale one is introduced and the equations used in the variational data assimilation are based on the nonlinear primitive equations.