globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2016.08.025
Scopus记录号: 2-s2.0-84984833771
论文题名:
Differences between Last Glacial Maximum and present-day temperature and precipitation in southern South America
作者: Berman A.L.; Silvestri G.E.; Tonello M.S.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 150
起始页码: 221
结束页码: 233
语种: 英语
英文关键词: Last Glacial Maximum ; Pampa ; Patagonia ; South America
Scopus关键词: Glacial geology ; Last Glacial Maximum ; Pampa ; Patagonia ; Regional scale ; South America ; Southern south america ; State of the art ; Subtropical area ; Climate models ; climate change ; Last Glacial Maximum ; paleoclimate ; precipitation (climatology) ; reconstruction ; subtropical region ; temperature profile ; Andes ; Argentina ; Cordillera ; Pampas ; Paraguay ; Patagonia
英文摘要: This paper is the first analysis of differences between Last Glacial Maximum (LGM) and present climates in southern South America considering the state-of-the-art PMIP3 paleoclimatic models. The study is focused on characteristics of temperature and precipitation over the portion of the continent to the south of 20°S at both sides of the Andes Cordillera. Results demonstrate that model outputs coincide with glacial conditions inferred from the very few paleorecords available in the region. Consequently, these models are a valuable tool for inferring additional conditions in areas where there is a lack of proxy information allowing the reconstruction of the past climate at regional scales. The analyzed PMIP3 models expose an LGM cooling of ∼2-5 °C throughout the year over almost all southern South America but differences are even more pronounced in areas around the southern Andes. Models also suggest that LGM precipitation was substantially lower than present over the portion of southern South America to the east of the Andes inferring reductions of ∼20–30% with respect to present-day values in subtropical areas and ∼40–50% in the southern tip of the continent. © 2016 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59444
Appears in Collections:过去全球变化的重建

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作者单位: Centro de Investigaciones del Mar y la Atmósfera/CONICET-UBA, UMI IFAECI/CNRS, Int. Guiraldes 2160, Ciudad Universitaria, Buenos Aires, Argentina; Laboratorio de Paleoecología y Palinología/Ecología y Paleoecología de Ambientes Acuáticos Continentales, Instituto de Investigaciones Marinas y Costeras (IIMyC), CONICET-UNMdP, J.B.Justo 2550, Mar del Plata, Argentina

Recommended Citation:
Berman A.L.,Silvestri G.E.,Tonello M.S.. Differences between Last Glacial Maximum and present-day temperature and precipitation in southern South America[J]. Quaternary Science Reviews,2016-01-01,150
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