1987年5月东半球热带地区大气环流及天气气候异常初探

A PRIMARY STUDY OF ANOMALOUS TROPICAL GENERAL CIRCULATION AND WEATHER IN TROPICAL REGION OF EASTERN HEMISPHERE IN MAY 1987

本文运用热带地区多年平均场资料、格点资料与常规资料,较为全面地分析了1987年5月厄尼诺现象持续期间热带大气环流和天气气候的异常,并从热带地区的水平流场和大气的空间结构以及中高纬度地区的环流形势等方面,对其可能原因作了初步的探讨和解释。

Anomalous tropical general circulation and weather are studied by using long-term annual mean data, grid and conventional data during the El Nino event in May, 1987. Its possible causes are discussed and explained by means of analysis of horizontal wind field and spafial structure of atmosphere over the tropics, circulation index in middle-and-high latitude area.