揭阳市降水气候特征及其与厄尔尼诺/拉尼娜事件的关系  

Climatic characteristics of precipitation in Jieyang City and its relationship with El Nino/La Nina Events

作　　者：林锦冰 郑瑶娜 陈泳峰 姜帅[2] 林巧美 Lin Jinbing;Zheng Yaona;Chen Yongfeng;Jiang Shuai;Lin Qiaomei(Jieyang Meteorological Service,Jieyang,Guangdong 515500;Huizhou Meteorological Service,Huizhou Guangdong 516001)

机构地区：[1]揭阳市气象局,广东揭阳515500 [2]惠州市气象局,广东惠州516001

出　　处：《气象研究与应用》2020年第1期11-15,共5页Journal of Meteorological Research and Application

基　　金：揭阳市气象局科技研究项目(201502)。

摘　　要：根据1967-2016年揭阳市4个国家气象站(揭阳市区、揭西、普宁、惠来)的观测资料以及Nino3+4区的海温指数(ONI),分析了揭阳市降水量、暴雨日数与厄尔尼诺/拉尼娜事件的关系。结果表明,50a来揭阳市的年降水量呈现出年际和年代际波动起伏的特点。在厄尔尼诺/拉尼娜事件发生时,揭阳春季降水主要表现为偏多/偏少,秋季降水主要表现为偏少/偏多,秋季暴雨日数主要表现为偏少或偏多;冬季暴雨只出现在厄尔尼诺事件或拉尼娜事件发生的年份。Based on the meteorological data of four national meteorological stations(Jieyang, Jiexi, Puning and Huilai) in Jieyang City from 1967 to 2016 and the sea surface temperature index(ONI) in Nino 3+4 area,the relationship between precipitation, rainstorm days and El Nino/La Nina events in Jieyang City was analyzed.The results showed that the annual precipitation of Jieyang City in the past 50 years had the characteristics of interannual and interdecadal fluctuation. In the event of El Nino/La Nina, the precipitation of Jieyang in spring was more/less, while that in autumn was less/more. In the event of El Nino/La Nina, the number of rainstorm days in autumn was mainly less/more;winter rainstorm only occurred in the year of El Nino event or La Nina event.

关 键 词：ENSO事件 降水量 暴雨日 揭阳 

分 类 号：P426.613[天文地球—大气科学及气象学]