气候变化领域集成服务门户(CCPortal): Interdecadal modulation of ENSO amplitude by the Atlantic multi-decadal oscillation (AMO)

CCPortal

DOI	10.1007/s00382-020-05408-x
	Interdecadal modulation of ENSO amplitude by the Atlantic multi-decadal oscillation (AMO)
	Gong Y.; Li T.; Chen L.
发表日期	2020
ISSN	0930-7575
起始页码	2689
结束页码	2702
卷号	55
英文摘要	The impact of the Atlantic Multi-decadal Oscillation (AMO) on the ENSO amplitude was investigated through observational analyses. During the past 90 years the interdecadal variability of ENSO intensity is significantly correlated with the AMO. ENSO variability was strengthened (weakened) during a negative (positive) AMO phase. An ocean mixed layer heat budget analysis reveals that the thermocline feedback is the main process regulating AMO negative phase dependent ENSO growth characteristic. A further examination indicates that a strengthened atmospheric response to unit SST anomaly, an enhanced thermocline response to unit wind stress forcing and a strengthened subsurface temperature response to unit thermocline variation all contribute to the enhanced thermocline feedback during the negative phase of AMO. Such changes are attributed to the increase of background moisture, the weakening of mean subtropical cell (STC) and increase of upper ocean vertical temperature gradient respectively. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	AMO; Interdecadal change of ENSO amplitude; Mixed layer heat budget; Thermocline feedback; Zonal advective feedback
语种	英语
scopus关键词	advection; air-sea interaction; amplitude; Atlantic Multidecadal Oscillation; decadal variation; El Nino-Southern Oscillation; heat budget; thermocline; upper ocean; zonal flow
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145285
作者单位	Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environmental Change (ILCEC)/Collaborative Innovation Center On Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, China; Department of Atmospheric Sciences, School of Ocean and Earth Science and Technology, International Pacific Research Center, University of Hawaii At Manoa, Honolulu, HI 96822, United States; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, 710061, China
推荐引用方式 GB/T 7714	Gong Y.,Li T.,Chen L.. Interdecadal modulation of ENSO amplitude by the Atlantic multi-decadal oscillation (AMO)[J],2020,55.
APA	Gong Y.,Li T.,&Chen L..(2020).Interdecadal modulation of ENSO amplitude by the Atlantic multi-decadal oscillation (AMO).Climate Dynamics,55.
MLA	Gong Y.,et al."Interdecadal modulation of ENSO amplitude by the Atlantic multi-decadal oscillation (AMO)".Climate Dynamics 55(2020).