气候变化领域集成服务门户(CCPortal): Reduced Atlantic variability in the mid-Pliocene

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DOI	10.1007/s10584-020-02675-9
	Reduced Atlantic variability in the mid-Pliocene
	Pontes G.M.; Wainer I.; Prado L.; Brierley C.
发表日期	2020
ISSN	0165-0009
起始页码	445
结束页码	461
卷号	160 期号:3
英文摘要	This study evaluates interannual-to-decadal sea surface temperature (SST) variability in the mid-Pliocene Warm Period within the Pliocene Model Intercomparison Project (PlioMIP). Our results show significantly reduced variability at low latitudes and mid-latitudes in the mid-Pliocene in comparison to the pre-industrial climate. At high latitudes of both hemispheres, the SST variability has increased. Latitudinal changes are likely driven by changes in the meridional SST gradient. Results with respect to the main Atlantic SST modes of variability show that the Atlantic Multidecadal Variability shifts southward and expands eastward due to a southward shift in the North Atlantic Drift position. The Atlantic Meridional Mode amplitude weakens due to increased SST gradient between its two poles. The South Atlantic Subtropical Dipole significantly shifts its southwestern pole towards the South American coast. Moreover, all Atlantic modes of variability have shifted their respective frequencies towards lower values. Our analyses on the PlioMIP simulation results provide a useful constraint in future projections associated with a warmer world when assessing Atlantic SST variability. © 2020, Springer Nature B.V.
英文关键词	Atlantic Meridional Mode (AMM); Atlantic Multidecadal Variability (AMO/AMV); Mid-Pliocene Warm Period; PlioMIP; Sea surface temperature variability; South Atlantic Subtropical Dipole (SASD)
语种	英语
scopus关键词	Atmospheric temperature; Submarine geophysics; Surface properties; Surface waters; Atlantic Meridional Mode (AMM); Mid-Pliocene; Multidecadal variability; PlioMIP; Sea surface temperature variability; South Atlantic; Oceanography; Atlantic Multidecadal Oscillation; latitudinal gradient; Northern Hemisphere; paleoceanography; Pliocene; sea surface temperature; Southern Hemisphere; Atlantic Coast [South America]; Atlantic Ocean; Atlantic Ocean (North); Atlantic Ocean (South)
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147163
作者单位	Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brazil; Instituto de Geociências, Universidade de Brasília, Brasília, Brazil; Department of Geography, University College London, Gower St, London, United Kingdom
推荐引用方式 GB/T 7714	Pontes G.M.,Wainer I.,Prado L.,et al. Reduced Atlantic variability in the mid-Pliocene[J],2020,160(3).
APA	Pontes G.M.,Wainer I.,Prado L.,&Brierley C..(2020).Reduced Atlantic variability in the mid-Pliocene.Climatic Change,160(3).
MLA	Pontes G.M.,et al."Reduced Atlantic variability in the mid-Pliocene".Climatic Change 160.3(2020).