globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2012.12.014
论文题名:
Reconstructing El Niño-Southern Oscillation activity and ocean temperature seasonality from short-lived marine mollusk shells from Peru
作者: Carré M.; Sachs J.P.; Schauer A.J.; Rodríguez W.E.; Ramos F.C.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 371
起始页码: 45
结束页码: 53
语种: 英语
英文关键词: Eastern tropical Pacific ; ENSO ; Mollusk ; Paleoclimate ; Sea surface temperature ; Stable isotopes
英文摘要: A critical need exists for quantitative reconstructions of long-term El Niño Southern Oscillation (ENSO) variability in the eastern tropical Pacific. Presented here is a method to quantitatively estimate past changes 1) in the seasonal amplitude of sea surface temperature (SST) in the Peruvian coastal upwelling system and 2) in the amplitude of ENSO-related interannual variability in the eastern tropical Pacific. The seasonal amplitude of SST (δT) along the length of the Peruvian coast is strongly correlated with the Niño1+2 index. We show that the frequency distribution of δT values provided by a modern sample of 13 Mesodesma donacium shells faithfully reflects modern ENSO variability at the regional scale, including the range of anomalies from La Niña to moderate El Niño events, but excludes extreme warm anomalies because of high shell mortality. We propose to use the frequency distribution of ENSO anomalies in paleoclimate studies for comparisons between shell records, coral records, and GCM simulations. Reconstruction uncertainties can be quantified using Monte Carlo simulations. The method presented here opens new perspectives for quantitative paleo-ENSO reconstructions in the Eastern Pacific since it may be applied with any mollusk species from Peru provided at least one annual cycle of SST is faithfully recorded by shell δ18O. © 2012 Elsevier B.V.
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被引频次[WOS]:22   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69846
Appears in Collections:过去全球变化的重建

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作者单位: UM2-CNRS-IRD, Institut des Sciences de l'Evolution de Montpellier, Université Montpellier 2, CC065, Pl. Eugène Bataillon, 34095 Montpellier, France; University of Washington, School of Oceanography, Box 355351, Seattle, WA 98195, United States; University of Washington, Department of Earth and Space Sciences, Box 351310, Seattle, WA 98195, United States; IMARPE, Laboratorio Costero de Huacho, Avenida San Martin 710 Carquín, Huacho, Peru; IMARPE, Laboratorio Costero de Ilo, Ilo, Peru

Recommended Citation:
Carré M.,Sachs J.P.,Schauer A.J.,et al. Reconstructing El Niño-Southern Oscillation activity and ocean temperature seasonality from short-lived marine mollusk shells from Peru[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,371
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