文献类型：期刊文献

中文题名：Enhanced correlation between ENSO and western North Pacific monsoon during boreal summer around the 1990s

英文题名：Enhanced correlation between ENSO and western North Pacific monsoon during boreal summer around the 1990s

作者：Wu Minmin[1];Wang Lei[1]

机构：[1]Guangdong Ocean Univ, Coll Ocean & Meteorol, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang, Peoples R China

年份：2019

卷号：12

期号：5

起止页码：376

中文期刊名：Atmospheric and Oceanic Science Letters

外文期刊名：ATMOSPHERIC AND OCEANIC SCIENCE LETTERS

收录：ESCI(收录号：WOS:000481539600011)、Scopus(收录号：2-s2.0-85069707887)、CSCD2019_2020、WOS、CSCD

基金：This work was supported by the National Key Research and Development Program of China [grant number 2018YFC1506903]; the National Natural Science Foundation of China [grant number 41776031]; the Guangdong Natural Science Foundation [grant number 2015A030313796]; the program for scientific research start-up funds of Guangdong Ocean University, and the Foundation for Returned Scholars of the Ministry of Education of China.

语种：英文

中文关键词：Western North Pacific summer monsoon;ENSO;tropical Atlantic SST anomaly;interdecadal variability;inter-basin interaction

外文关键词：Western North Pacific summer monsoon; ENSO; tropical Atlantic SST anomaly; interdecadal variability; inter-basin interaction

中文摘要：The correlation between summertime Nino3.4 index and western North Pacific(WNP)summer monsoon index has strikingly enhanced since the early 1990 s,with nonsignificant correlation before the early1990 s but significant correlation afterward.This observed interdecadal change around the 1990 s may be associated with more frequent occurrences of central Pacific(CP)El Nino and the interdecadal changes in ENSO-associated SST anomalies.During the post-1990 s period(the pre-1990 s period),highly noticeable tropical Atlantic(Indian)Ocean SST anomalies tend to co-occur with the summertime Nino3.4 SST anomalies.The concurrent tropical Atlantic(Indian)Ocean SST anomalies could constructively reinforce(destructively mitigate)the WNP monsoon circulation anomalies induced by the summertime Nino3.4 SST,thus boosting(muting)the correlation between summertime Nino3.4 SST and WNP monsoon.In addition,the faster decaying pace of preceding-winter El Nino after the 1990 s,which may have been mainly induced by the influences from the spring tropical North Atlantic SST anomalies,could also have contributed to the enhanced correlation between the summertime Nino3.4 index and WNP monsoon.These results suggest that the enhanced influences from the tropical Atlantic SST may have triggered the intensified correlation between summertime ENSO and WNP monsoon since the early 1990 s.

外文摘要：The correlation between summertime Nino3.4 index and western North Pacific (WNP) summer monsoon index has strikingly enhanced since the early 1990s, with nonsignificant correlation before the early 1990s but significant correlation afterward. This observed interdecadal change around the 1990s may be associated with more frequent occurrences of central Pacific (CP) El Nino and the interdecadal changes in ENSO-associated SST anomalies. During the post-1990s period (the pre-1990s period), highly noticeable tropical Atlantic (Indian) Ocean SST anomalies tend to co-occur with the summertime Nino3.4 SST anomalies. The concurrent tropical Atlantic (Indian) Ocean SST anomalies could constructively reinforce (destructively mitigate) the WNP monsoon circulation anomalies induced by the summertime Nino3.4 SST, thus boosting (muting) the correlation between summertime Nino3.4 SST and WNP monsoon. In addition, the faster decaying pace of preceding-winter El Nino after the 1990s, which may have been mainly induced by the influences from the spring tropical North Atlantic SST anomalies, could also have contributed to the enhanced correlation between the summertime Nino3.4 index and WNP monsoon. These results suggest that the enhanced influences from the tropical Atlantic SST may have triggered the intensified correlation between summertime ENSO and WNP monsoon since the early 1990s.