副热带高压的东西向移动及其預报的研究

本文从副热带高压本身的形状、位置与风場結构研究高压单体的移动問題,求得了副热带高压在东西方向上的移速公式,提出根据高压的形状、位置及其南北二側緯向风速分布廓线預报高压移动的具体办法,并討論了外界环流系統及高压本身性状变化对高压移动的影响及其物理性质.

A STUDY OF THE LONGITUDINAL MOVEMENT AND ITS FORECASTING OF SUBTROPICAL ANTICYCLONES

The aim of this paper is to study the longitudinal movement of a subtropical anticyclone cell in relation to the feature and structure of the anticyclone itself, and to develop method by means of which the movement of subtropical anticyclones can be computed. The velocity formula obtained, shows that the velocity of longitudinal movement is determined by the characteristics of latitudinal distribution of the zonal currents and the feature and position of the anticyclone itself,and that it even varies from point to point within the anticyclone. The movement of the anticyclone center is particurely investigated, and the application of the velocity formula in daily forecasting work is illustrated by synoptic examples. By the way, the physical effect of the activity of westerly troughs and wedges in high latitudes and tropical depressions in low latitudes, and the effect of the variation of the feature and intensity of anticyclone itself, on the movement of subtropical anticyclones are also discussed.