基本流和切变流影响下的南亚季风  

SOUTH ASIA MONSOON AFFECTED BY BASIC AND SHEAR FLOW

作　　者：王永中[1] 夏友龙[1] 

机构地区：[1]北京气象学院大气科学系

出　　处：《热带气象学报》1995年第3期231-239,共9页Journal of Tropical Meteorology

摘　　要：采用赤道平衡模式及低阶谱方法，考虑基本气流、一次切变流和二次切变流的影响，给出了描写南亚冬夏季风的非线性方程。重点讨论了基本气流和一、二次切变流对南亚季风形成、转换和强度的影响，井指出一次切变流对南亚季风影响与基本流及二次切变流对南亚季风的影响明显不同。By using an equatorial balanced model and low order spectral method and considering the effect of the basic flow, the first-order and second-order shear, the nonlinear equation describing the winter and summer monsoon in South Asia is derived. We mainly discuss the influence of the basic flow, first-and second-order shear on the formation, transformation and intensity of monsoon in South Asia. The results show that there is an evident difference between the influence of first-order shear on monsoon in South Asia and that of the basic flow and second-order shear on monsoon in South Asia.

关 键 词：季风 低阶谱法 切变流 基本流 

分 类 号：P425.42[天文地球—大气科学及气象学]