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在本文中,为研究赤道中东太平洋区域上对流层季风是否具有和经典季风同样的风向变化特征,我们引入一种风向角的研究方法——有向转角法,该方法不仅可以刻画风向变化的角度大小,而且包含风矢量如何转变的信息。在此基础上,利用该方法并将其适当推广,本文研究了赤道中东太平洋区域上对流层季风的演变过程,结果证实了该区域上对流层季风具有和经典季风同样的四种转变特征,并进一步给出了随季节转换不同时期内的风向演变结果,发现上对流层季风相对经典季风具有爆发时间较早并结束较晚的特点。本文结果是对全球季风系统理论的有益补充,进一步支持该理论将全球不同季风作为一个整体系统来看待。
In this paper, in order to study whether the tropospheric monsoon in the equatorial central and eastern Pacific has the same wind direction change characteristics as the classical monsoon, we introduce a study method of directional wind angle, directed azimuth method, which can not only describe the angle of wind direction change , But also contains information on how the wind vector changes. On the basis of this, using this method and extending it properly, this paper studies the evolution of the tropospheric monsoon over the equatorial central and eastern Pacific Ocean. The results show that the tropospheric monsoon has the same four kinds of transitional features as the classical monsoon and further The evolution of the wind direction over different periods with the change of seasons shows that the upper troposphere monsoon has the characteristics of earlier onset and late termination than the classical monsoon. The result of this paper is a useful supplement to the global monsoon system theory, which further supports the theory that the different monsoons in the world should be treated as a whole system.