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DOI: 10.1016/j.gloplacha.2012.10.007
论文题名:
Evolution of the El Nino-Southern Oscillation in the late Holocene and insolation driven change in the tropical annual SST cycle
作者: Loubere P.; Creamer W.; Haas J.
刊名: Global and Planetary Change
ISSN: 0921-8361
出版年: 2013
卷: 100
起始页码: 129
结束页码: 144
语种: 英语
英文关键词: Climate change ; ENSO ; Holocene ; Insolation forcing ; SST ; Tropical pacific
Scopus关键词: ENSO ; Holocenes ; Insolation forcing ; SST ; Tropical pacific ; Atmospheric temperature ; Climate change ; Isotopes ; Sediments ; Tropics ; Incident solar radiation ; archaeology ; bivalve ; El Nino-Southern Oscillation ; heating ; Holocene ; insolation ; lacustrine deposit ; oxygen isotope ; paleoenvironment ; reconstruction ; sea surface temperature ; seasonal variation ; solar radiation ; trophic environment ; Pacific Ocean ; Pacific Ocean (Equatorial) ; Pacific Ocean (Tropical) ; Peru ; Bivalvia ; Mesodesma donacium ; Pseudocardium sachalinensis
英文摘要: South American lake sediment records indicate that El Nino events in the eastern equatorial Pacific (EEP) became more frequent after 3000. calendar years BP. The reason for this evolution of ENSO behavior remains in question. An important trigger for ocean-atmosphere state switching in the tropical ocean is the annual cycle of sea surface temperature south of the equator along the margin of South America. This annual cycle can be reconstructed from the oxygen isotope records of the surf clam Mesodesma donacium. We provide evidence that these isotope records, as preserved in archeological deposits in coastal central Peru, reflect seasonal paleo-SST. We find that the annual SST cycle in the eastern equatorial Pacific became larger over the 4500-2500. calendar year BP interval. This is consistent with increased ENSO variability. The magnification of the annual SST cycle can be attributed to changing insolation, indicating that ENSO is sensitive to the intensity and seasonal timing of solar heating of the southern EEP. © 2012 Elsevier B.V.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84868548966&doi=10.1016%2fj.gloplacha.2012.10.007&partnerID=40&md5=b2d9bcda6facc61c7ebaeef0009d2d50
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11267
Appears in Collections:全球变化的国际研究计划

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作者单位: Department of Anthropology, Northern Illinois University, DeKalb, IL 60115, United States

Recommended Citation:
Loubere P.,Creamer W.,Haas J.. Evolution of the El Nino-Southern Oscillation in the late Holocene and insolation driven change in the tropical annual SST cycle[J]. Global and Planetary Change,2013-01-01,100.
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