|国家科技期刊平台
| 注册
首页|期刊导航|大气和海洋科学快报（英文版）|Impact of Southern Indian ocean dipole via the ITCZ on winter and spring precipitation in China

Impact of Southern Indian ocean dipole via the ITCZ on winter and spring precipitation in China

Ran Dong Yuanhong Guan Wen Zhou Chenguang Guo

大气和海洋科学快报（英文版）2023，Vol.16Issue(6)：28-33,6.
✕
大气和海洋科学快报（英文版）2023，Vol.16Issue(6)：28-33,6.DOI:10.1016/j.aosl.2023.100358

Impact of Southern Indian ocean dipole via the ITCZ on winter and spring precipitation in China

Impact of Southern Indian ocean dipole via the ITCZ on winter and spring precipitation in China

Ran Dong 1Yuanhong Guan 2Wen Zhou 3Chenguang Guo1

作者信息

  • 1. School of Mathematics and Statistics,Nanjing University of Inf ormation Science and Technology,Nanjing,China||Center for Applied Mathematics of Jiangsu Province,Nanjing University of Inf ormation Science and Technology,Nanjing China
  • 2. School of Mathematics and Statistics,Nanjing University of Inf ormation Science and Technology,Nanjing,China||Center for Applied Mathematics of Jiangsu Province,Nanjing University of Inf ormation Science and Technology,Nanjing China||Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Nanjing,China
  • 3. Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences,Fudan University,Shanghai,China
  • 折叠

摘要

Abstract

本文分析了 1979-2021年南印度洋冬季海表面温度特征,印度洋热带辐合带(ITCZ)位置变化及其对中国冬春季降水的影响.EOF分析第一模态表明南印度洋冬季海表面温度异常显示西南-东北反相分布,即南印度洋偶极子模态(SIOD).分离厄尔尼诺-南方涛动(ENSO)信号后,纯SIOD事件对同年冬季和次年春季的印度洋ITCZ位置(35°-75°E平均)均有影响,冬季,纯正(负)SIOD事件使印度洋ITCZ往南(北)移动.春季,SIOD则使印度洋ITCZ移动方向与冬季相反,且移动幅度更大.冬,春季长江中下游地区(MLYR)的降水量与印度洋ITCZ位置分别呈正,负相关.同时,在纯正(负)SIOD事件下,冬,春季MLYR的降水分别减少,增加,可见印度洋ITCZ位置变化可能是SIOD影响MLYR冬,春季降水的媒介之一.

关键词

南印度洋偶极子/ENSO/ITCZ/降水

Key words

Southern Indian ocean dipole/ENSO/ITCZ/Precipitation

引用本文复制引用

Ran Dong,Yuanhong Guan,Wen Zhou,Chenguang Guo..Impact of Southern Indian ocean dipole via the ITCZ on winter and spring precipitation in China[J].大气和海洋科学快报（英文版）,2023,16(6):28-33,6.

基金项目

Yuanhong Guan is supported by the National Natural Science Foun-dation of China[grant numbers 41975087,U2242212,and 41975085] （）

Wen Zhou is supported by the International Cooperation and Exchange Programme of the National Natural Science Foundation of China[grant number 42120104001]and the Hong Kong RGC General Fund[grant number 11300920].We acknowledge the High Performance Computing Center of the Nanjing University of Information Science & Technology for their sup-port of this work. （）

大气和海洋科学快报（英文版）

OACSCD

1674-2834

访问量0
|
下载量0
段落导航相关论文