Characteristics of the Mean Meridional Circulations Induced by Various Forcing Factors and Their Contributions to Systematic Errors of Numerical Weather Pediction Model
各种物理强迫激发的平均经圈环流特征及其对数值天气预报模式系统误差的贡献

It is proved in this paper that the forcing function which induces the mean meridional circulation(MMC) can be split linearly into seven factors.Through employing this scheme,the characteristics of MMCs induces by these factors are investigated respectively and also,the systematic errors of numerical weather pediction(NWP) are analyzed by studying the differences of MMCs induced by these factors between the atmosphere in model and in reality.It is shown that the method with clear physical meaning is an effective tool for dynamically analysis of NWP systematic errors.