江南春雨的形成机制及与海气涛动的联系  

The formation mechanism of spring persistent rains and its relationship with theatmospheric-marine oscillation

作　　者：连悦辰 LIAN Yue-chen(State Key Laboratory of Subtropical Mountain Ecology(Funded by Ministry of Science and Technology and Fujian province),Fujian Normal University,Fuzhou,350007,Fujian,China;Fujian Normal University,School of Geographical Sciences,Fuzhou,350007,Fujian,China)

机构地区：[1]福建师范大学湿润亚热带山地生态国家重点实验室培育基地,福建福州350007 [2]福建师范大学地理科学学院,福建福州350007

出　　处：《青海师范大学学报（自然科学版）》2021年第1期50-56,共7页Journal of Qinghai Normal University(Natural Science Edition)

摘　　要：江南春雨是中国南方广大地区春季发生的连续阴雨天气,是一种我国特有的天气情况,本文对江南春雨的可能形成机制及海气涛动之间的联系进行了综述,北方冷干气流和南方暖湿气流的相遇、青藏高原东南侧风速中心的形成以及东亚纬向热力性质差异都可能是江南春雨的形成机制,江南春雨与厄尔尼诺-南方涛动以及北大西洋涛动都具有相关性,厄尔尼诺年,江南春雨降水量增加;拉尼娜年,江南春雨形成时间晚,降雨量减少.当北大西洋涛动处于正相位,江南春雨降水减少,反之增加.Spring Persistent Rains is a continuous overcast and rainy weather that occur in the vast areas of southern China in the spring.It is a unique weather condition in China.This paper reviews the relationship between the possible formation mechanism of the Spring Persistent Rains and the atmospheric-marine oscillation.The encounter of warm and humid air currents, the formation of the wind speed center on the southeast side of the Qinghai-Tibet Plateau, and the difference in zonal thermal properties in East Asia may be the formation mechanism of the Spring Persistent Rains.Spring Persistent Rains is related to the El Nino-Southern Oscillation and the North Atlantic Oscillation.When El Nino year, the precipitation of the spring rain in the south of the Yangtze River increased;When La Nina year, Spring Persistent Rains in the south of the Yangtze River formed late and the rainfall decreased.When the North Atlantic Oscillation is positive phase, the spring rain in the south of the Yangtze River will decrease, and vice versa.

关 键 词：江南春雨 厄尔尼诺 北大西洋涛动 

分 类 号：U491.71[交通运输工程—交通运输规划与管理]