1951～2016年厄尔尼诺/拉尼娜事件对登陆华南地区台风的影响

Impact of El Nino or La Nina on the Typhoon Landed in South China from 1951 to 2016

为研究厄尔尼诺/拉尼娜事件对登陆我国华南地区台风的影响,选用1951~2016年登陆华南地区台风的统计数据,并分析与厄尔尼诺/拉尼娜事件的关系。研究结果表明:(1)研究期间共发生19次厄尔尼诺事件与15次拉尼娜事件,且均在夏季爆发的频率最高。(2)厄尔尼诺(El Nino)事件发生时,登陆华南地区的台风数较正常年份偏少,但强度偏强;(3)拉尼娜(La Nina)事件发生时,登陆华南地区的台风数偏多,但强度偏弱。

In order to reserch the effect of E1 Nifio or La Nifia on the typhoon landed in South China, it was selected the statistical data of Typhoon from 1951 to 2016 to study the relationship with E1 Nino or La Nina event. The results showed that：（1）there were 19 E1 Nino events and 15 La Nina events occured during the study period, with the highest frequency in summer. （2）El Nino is closely related to the intensity and frequency of typhoons landed in South China. Under the influence of E1 Nino event, the number of typhoons that landed in south China was less than normal year with strong intensity. （3）When La Nina event happened, the number of typhoons that landed in south China was more than normal year with weak intensity.