【摘要】 本文利用近期热带太平洋大气—海洋实测资料,对起始于1986年9月的厄尔尼诺(EI-Ni(?)o)-南方涛动(ENSO)事件作了初步分析,发观亦道太平洋月际STS距平、纬向风指数、平均海平面高度距平、南方涛动指数、地球射出长波辐射、大气环流遥相关型和西太平洋副热带高压等在这次ENSO事件发生前后均有显著变化。作者指出,这次ENSO事件中,赤道太平洋海温异常增暖不是象通常那样发生在春季和由南美沿岸向西发展,而是发生在秋季,且首先出现在中赤道太平洋日界线区,而后迅速向东发展,从海温异常增暖的强度和持续时间来看,这次ENSO事件基本属一次中等强度过程。更多还原

【Abstract】 In the present paper, the formation and development processes of the 1986-1987 ENSO event are analysed based on recent atmosphere ocean data of the tropical Pacific. The results showed that obvious changes in the equatorial SST anomalies, the mean-sea-level height anomalies, the zonal wind index, southern oscillation index, the outbound long-wave radiation index, the teleconnection type of the general circulation of atmosphere and the Western Pacific Subtropical High, etc.occurred during the 1986-1987 ENSO event.The warm anomaly of the SST occurred during autumn in the northern hemisphere (Sep.1986) , initially occurring at the Date Line area of the Central Equatorial Pacific and then develop rapidly to the east, and did not occur in the general way, in which anomalous heating occurs during spring in the northern hemisphere and develops from the South American coast to the west.It is deemed that this was a medium-strength ENSO event.更多还原