中南半岛末次西南季风潮前后低纬环流及其结构的变化

本文利用1974—1982年中南半岛地区近40个测站的各层资料,通过水平环流、散度场和温度场剖面图,讨论了中南半岛地区最后一次季风潮前后低纬高低空环流形势及大气结构。结果表明:末次季风潮前后低纬高低空环流,经圈环流及大气结构均发生了较明显的变化,标志着西南季风即将撤出中南半岛地区。

THE CHANGES IN THE CIRCULATION AND ATMOSPHERIC STRUCTURE OVER LOW LATITUDES DURIND THE RETREAT OF LAST SOUTH-WEST SUMMER MONSOON SURGE

The changes of the circulation situation and thermodynamic and dynamic structure are discussed at lower and upper levels in low latitudes over the Indo-china Peninsula during the last summer monsoon surge. The data covering near 40 stations over Indo-china Peninsula during 1974-1982 are used to analysis the horizontal circulation and cross-section diagram of the divergence and temperature in this paper. The results show that before and after the retreat of last sw monsoon surge, apparent changes can be observed not only in the horizontal circulation in lower and upper tropospherehbut ut also in the vertical longitudinal cells as well as the thermodynamic and dynamic structure of the atmosphere over there.