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  

Characteristics of the Mean Meridional Circulations Induced by Various Forcing Factors and Their Contributions to Systematic Errors of Numerical Weather Pediction Model

作　　者：张绍晴[1] 刘还珠[1] 

机构地区：[1]中国气象局国家气象中心

出　　处：《大气科学》1996年第1期112-122,共11页Chinese Journal of Atmospheric Sciences

摘　　要：本文证明７种强迫作用激发经因环流的线性叠加性，分项考察了各种物理强迫激发经因环流的特征，通过考察一个数值模式的模式大气和实际大气各种物理强迫激发经圈环流的差异，分析了模式系统误差的成因，这种建立在动力背景之上的模式误差分析方法，其物理意义明确，具有较为普遍的适用性。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.

关 键 词：物理强迫 经圈环流 模式系统误差 数值天气预报 

分 类 号：P456.7[天文地球—大气科学及气象学]