中国海洋大学学报（自然科学版）2024，Vol.54Issue(2)：12-22,11.DOI:10.16441/j.cnki.hdxb.20220349
两类厄尔尼诺事件对次年山东夏季降水的影响研究
Impacts of Two Types of El Niño on Summer Rainfall in Shandong
摘要
Abstract
The El Niño events can be classified into EP El Niño and CP El Niño according thelocation of the warmest SST anomaly(SSTA).Based on the composite analysis,this paper analyzes the differences of summer rainfall in Shandong Province and related possible mechanisms during the decaying stage of two types of El Niño events.The results can be concluded as follows:In the following summer of CP El Niño,the anomalous Northwest Pacific Anticyclone(NWPAC)shifts northward to increasing the sum-mer rainfall in Shandong through intensifying the water vapor transport of East Asian summer mon-soon.The precipitation is most significant in August,which is related to the intraseasonal northward movement of the NWPAC.In contrast,during the following summer of EP El Niño,NWPAC shifts southward,generating a negative East Asia-Pacific teleconnection pattern with a cyclonic anomaly over Japan.This strengthen the East Asian trough,leading to more droughts in Shandong,especially during June.These results can promote the skill of seasonal prediction on summer precipitation in Shandong.关键词
中部型El Niño/东部型El Niño/西北太平洋反气旋/东亚-太平洋遥相关/山东夏季降水Key words
EP El Niño/CP El Niño/Northwest Pacific anticyclone/East Asia-Pacific teleconnection pattern/summer precipitation in Shandong分类
天文与地球科学引用本文复制引用
张晏铭,郑小童..两类厄尔尼诺事件对次年山东夏季降水的影响研究[J].中国海洋大学学报（自然科学版）,2024,54(2):12-22,11.基金项目
山东省自然科学基金重大基础研究项目(ZR2019ZD12)资助Supported by the Shandong Natural Science Foundation Major Basic Research Project(ZR2019ZD12) （ZR2019ZD12）
