季风环流的正压低阶截谱模式  

THE BAROTROPIC LOW ORDER TRUNCATED SPECTRAL MODEL OF THE MONSOON CIRCULATION

作　　者：杨大升[1] 王会军 

机构地区：[1]北京大学地球物理系

出　　处：《气象学报》1989年第4期424-435,共12页Acta Meteorologica Sinica

摘　　要：本文用正压浅水方程和低阶截谱模式研究季风环流的动力机制,得出地转运动、地转偏差本身之间,地转和非地转运动之间以及地转运动或地转偏差与重力位势场之间的波与波非线性相互作用过程和大尺度外源强迫可能是季风环流维持的主要动力机制。The dynamic mechanism of the maintenance of the monsoon circulation is investigated by the barotropic shallow water equation and with the aid of the low order truncated spectral model. The results indicate that the wave-wave non-linear interaction between the components of the geostrophic or ageostroph-ic flow themselves, that between the geostrophic flow and geostrophic deviation, as well as that between the geostrophic or ageostrophic flow and the geopote-ntial field and the large scale external forcing are probably the determinant! dynamic mechanisms of the maintenance of the monsoon circulation.

关 键 词：季风环流 正压模式 低阶截谱 

分 类 号：P434.1[天文地球—大气科学及气象学]