Dynamic Features and Maintenance Mechanism of Asian Summer Monsoon Subsystem

摘要

In the context of the dissocintion of vertical shear flow and tropospheric mean flow based on1980-1996 NCEP/ NCAR re-analysis, study is undertaken of the barotropic and baroclinic development characteristics and kinetic energy maintenance mechanisms of Asian summer monsoon.Evidence suggests that the monsoon activity is marked by noticeable baroclinicity in three activeregions of different dynamical characteristics, located in India, East Asian tropics and subtropics,respectively, with greatly differing maintenance mechanisms of barotropic/ baroclinic kinetic energy.