globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-14-00372.1
Scopus记录号: 2-s2.0-84923012748
论文题名:
A decadal-scale teleconnection between the North Atlantic Oscillation and subtropical eastern Australian rainfall
作者: Sun C.; Li J.; Feng J.; Xie F.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期:3
起始页码: 1074
结束页码: 1092
语种: 英语
Scopus关键词: Atmospheric pressure ; Atmospheric temperature ; Rain ; Surface waters ; Atlantic meridional overturning circulations ; Atmospheric circulation ; Multi-decadal time scale ; North Atlantic oscillations ; Ocean-atmosphere coupled model ; Pacific decadal oscillation ; Sea surface temperature (SST) ; Subpolar North Atlantic ; Oceanography ; air-sea interaction ; atmospheric circulation ; meridional circulation ; North Atlantic Oscillation ; overturn ; rainfall ; sea surface temperature ; Southern Hemisphere ; subtropical region ; teleconnection ; Australia ; Southern Ocean
英文摘要: The time series of twentieth-century subtropical eastern Australian rainfall (SEAR) shows evident fluctuations over decadal to multidecadal time scales. Using observations from the period 1900-2013, it was found that SEAR is connected to the North Atlantic Oscillation (NAO) over decadal time scales, with the NAO leading by around 15 yr. The physical mechanism underlying this relationship was investigated. TheNAOcan have a delayed impact on sea surface temperature (SST) fluctuations in the subpolar Southern Ocean (SO), and these SST changes could in turn contribute to the decadal variability in SEAR through their impacts on the Southern Hemisphere atmospheric circulation. This observed lead of theNAOrelative to SO SST and the interhemispheric SST seesaw mechanism are reasonably reproduced in a long-term control simulation of an ocean-atmosphere coupled model. The NAO exerts a delayed effect on the variation of Atlantic meridional overturning circulation that further induces seesaw SST anomalies in the subpolar North Atlantic and SO. With evidence that the NAO precedes SEAR decadal variability via a delayed SO bridge, a linear model for SEAR decadal variability was developed by combination of the NAO and Pacific decadal oscillation (PDO). The observed SEAR decadal variability is considerably well simulated by the linear model, and the relationship between the simulation and observation is stable. SEAR over the coming decade may increase slightly, because of the recent NAO weakening and the return of negative PDO phase. © 2015 American Meteorological Society.
资助项目: NSFC, National Natural Science Foundation of China
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50841
Appears in Collections:气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Joint Center for Global Change Studies, Beijing, China

Recommended Citation:
Sun C.,Li J.,Feng J.,et al. A decadal-scale teleconnection between the North Atlantic Oscillation and subtropical eastern Australian rainfall[J]. Journal of Climate,2015-01-01,28(3)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Sun C.]'s Articles
[Li J.]'s Articles
[Feng J.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Sun C.]'s Articles
[Li J.]'s Articles
[Feng J.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Sun C.]‘s Articles
[Li J.]‘s Articles
[Feng J.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.