季风的年变程

The Annual Variation of the Monsoon in the Asia,Africa,Australia and Indonesia

对流层低层的风可以看成是二部分的组合,一部分是季风,而另一部分是非季风的行星风。在对流层低层行星风的季节性变化很小,所以可以用多年平均的年平均风来代表。这样,就可以将季风从实际风中分离出来。作者用这种分离出来的季风讨论了亚洲、非洲、澳洲和印度尼西亚四个著名的季风区季风的年变程。

The observational wind systems in the lower tropospher may be divided into the two parts.The first part is the clamatologically annual mean wind systems and othfr paet is the depature wind system(observational wind minus annual mean wind),Wang and You suppose the first part represents the atmospheric response to the orographically induced large scale stationary disturbances, and the second part represents the atmospheric response to the heating constrast among oceans and continents.The second part can be considered as the monsoon. In this paper,the annual variation of the monsoon in the Asia,Africa, Australia and Indonesia with the above second part of the tropospheric wind systems was discussed.