globalchange  > 影响、适应和脆弱性
DOI: 10.5194/cp-14-559-2018
Scopus记录号: 2-s2.0-85046022236
论文题名:
Recent climate variations in Chile: Constraints from borehole temperature profiles
作者: Pickler C.; Gurza Fausto E.; Beltrami H.; Suárez F.; Chacon-Oecklers A.; Blin N.; Teresa Cortés Calderón M.; Montenegro A.; Harris R.; Tassara A.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2018
卷: 14, 期:4
起始页码: 559
结束页码: 575
语种: 英语
Scopus关键词: climate change ; climate variation ; cooling ; paleoclimate ; proxy climate record ; reconstruction ; semiarid region ; surface temperature ; temperature profile ; United Nations Framework Convention on Climate Change ; Atacama Desert ; Chile ; Peru
英文摘要: We have compiled, collected, and analyzed 31 temperature-depth profiles from boreholes in the Atacama Desert in central and northern Chile. After screening these profiles, we found that only nine profiles at four different sites were suitable to invert for ground temperature history. For all the sites, no surface temperature variations could be resolved for the period 1500-1800. In the northern coastal region of Chile, there is no perceptible temperature variation at all from 1500 to present. In the northern central Chile region, between 26 and 28°ĝ€S, the data suggest a cooling from ĝ‰ ĝ€1850 to ĝ‰ ĝ€1980 followed by a 1.9ĝ€K warming starting ĝ‰ ĝ€20-40 years BP. This result is consistent with the ground surface temperature histories for Peru and the semiarid regions of South America. The duration of the cooling trend is poorly resolved and it may coincide with a marked short cooling interval in the 1960s that is found in meteorological records. The total warming is greater than that inferred from proxy climate reconstructions for central Chile and southern South America, and by the PMIP3-CMIP5 surface temperature simulations for the north-central Chile grid points. The differences among different climate reconstructions, meteorological records, and models are likely due to differences in spatial and temporal resolution among the various data sets and the models. © Author(s) 2018.
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被引频次[WOS]:11   [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/109573
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: GEOTOP, Centre de Recherche en Géochimie et en Géodynamique, Université du Québec À Montréal, Canada; Climate and Atmospheric Sciences Institute and Department of Earth Sciences, St. Francis Xavier University, Antigonish, NS, Canada; Centre Pour l'Étude et la Simulation du Climat À l'Échelle Régionale, Université du Québec À Montréal, Montréal, QC, Canada; Departamento de Ingeniería Hidráulica y Ambiental, Pontificia Universidad Católica de Chile, Santiago, RM, Chile; Centro de Desarrollo Urbano Sustenable (CEDEUS), Santiago, RM, Chile; Centro de Excelencia en Geotermia de Los Andes (CEGA), Santiago, RM, Chile; Department of Geography, Ohio State University, Columbus, OH, United States; CEOAS, Oregon State University, Corvallis, OR, United States; Departamento Ciencias de la Tierra, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile

Recommended Citation:
Pickler C.,Gurza Fausto E.,Beltrami H.,et al. Recent climate variations in Chile: Constraints from borehole temperature profiles[J]. Climate of the Past,2018-01-01,14(4)
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