globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-16-0899.1
Scopus记录号: 2-s2.0-85027254922
论文题名:
Causes of ENSO weakening during the mid-Holocene
作者: Tian Z.; Li T.; Jiang D.; Chen L.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期:17
起始页码: 7049
结束页码: 7070
语种: 英语
Scopus关键词: Atmospheric pressure ; Atmospheric thermodynamics ; Climate models ; Stream flow ; Atmosphere-ocean interactions ; ENSO ; Interannual variability ; Model evaluation/performance ; Pacific ocean ; Climatology
英文摘要: The causes of the change in amplitude of El Niño-Southern Oscillation (ENSO) during the mid-Holocene were investigated by diagnosing the model simulations that participated in the Paleoclimate Modelling Intercomparison Project phases 2 and 3. Consistent with paleoclimate records, 20 out of the 28 models reproduced weaker-than-preindustrial ENSO amplitude during the mid-Holocene. Two representative models were then selected to explore the underlying mechanisms of air-sea feedback processes. A mixed layer heat budget diagnosis indicated that the weakened ENSO amplitude was primarily attributed to the decrease in the Bjerknes thermocline feedback, while the meridional advective feedback also played a role. During the mid-Holocene, the thermocline response to a unit anomalous zonal wind stress forcing in the equatorial Pacific weakened in both models because of the increased ENSO meridional scale. A further investigation revealed that the greater ENSO meridional width was caused by the strengthening of the Pacific subtropical cell, which was attributed to the enhanced mean trade wind that resulted from the intensified Asian and African monsoon rainfall and associated large-scale east-west circulation in response to the mid-Holocene orbital forcing. © 2017 American Meteorological Society.
资助项目: NSFC, National Natural Science Foundation of China ; 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/49851
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: Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; International Pacific Research Center, School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa, Honolulu, HI, United States; International Laboratory on Climate and Environment Change, Key Laboratory of Meteorological Disaster, Nanjing University of Information Science and Technology, Nanjing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China; Joint Laboratory for Climate and Environmental Change, Chengdu University of Information Technology, Chengdu, China

Recommended Citation:
Tian Z.,Li T.,Jiang D.,et al. Causes of ENSO weakening during the mid-Holocene[J]. Journal of Climate,2017-01-01,30(17)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Tian Z.]'s Articles
[Li T.]'s Articles
[Jiang D.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Tian Z.]'s Articles
[Li T.]'s Articles
[Jiang D.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Tian Z.]‘s Articles
[Li T.]‘s Articles
[Jiang D.]‘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.