globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2016.02.010
论文题名:
Holocene climate change in Arctic Canada and Greenland
作者: Briner J.P.; McKay N.P.; Axford Y.; Bennike O.; Bradley R.S.; de Vernal A.; Fisher D.; Francus P.; Fréchette B.; Gajewski K.; Jennings A.; Kaufman D.S.; Miller G.; Rouston C.; Wagner B.
刊名: Quaternary Science Reviews
出版年: 2016
卷: 147
起始页码: 340
结束页码: 364
语种: 英语
英文关键词: Arctic Canada ; Greenland ; Holocene ; Holocene thermal maximum ; Neoglacial
Scopus关键词: Database systems ; Glaciers ; Ice ; Principal component analysis ; Submarine geology ; Arctic Canada ; Greenland ; Holocene thermal maximums ; Holocenes ; Neoglacial ; Climate change ; climate change ; environmental conditions ; historical record ; Hypsithermal ; lacustrine deposit ; marine sediment ; Neoglacial ; paleoclimate ; principal component analysis ; proxy climate record ; Arctic ; Atlantic Ocean ; Canada ; Canadian Arctic ; Greenland ; Greenland Ice Sheet
英文摘要: This synthesis paper summarizes published proxy climate evidence showing the spatial and temporal pattern of climate change through the Holocene in Arctic Canada and Greenland. Our synthesis includes 47 records from a recently published database of highly resolved Holocene paleoclimate time series from the Arctic (Sundqvist et al., 2014). We analyze the temperature histories represented by the database and compare them with paleoclimate and environmental information from 54 additional published records, mostly from datasets that did not fit the selection criteria for the Arctic Holocene database. Combined, we review evidence from a variety of proxy archives including glaciers (ice cores and glacial geomorphology), lake sediments, peat sequences, and coastal and deep-marine sediments. The temperature-sensitive records indicate more consistent and earlier Holocene warmth in the north and east, and a more diffuse and later Holocene thermal maximum in the south and west. Principal components analysis reveals two dominant Holocene trends, one with early Holocene warmth followed by cooling in the middle Holocene, the other with a broader period of warmth in the middle Holocene followed by cooling in the late Holocene. The temperature decrease from the warmest to the coolest portions of the Holocene is 3.0 ± 1.0 °C on average (n = 11 sites). The Greenland Ice Sheet retracted to its minimum extent between 5 and 3 ka, consistent with many sites from around Greenland depicting a switch from warm to cool conditions around that time. The spatial pattern of temperature change through the Holocene was likely driven by the decrease in northern latitude summer insolation through the Holocene, the varied influence of waning ice sheets in the early Holocene, and the variable influx of Atlantic Water into the study region. © 2016 Elsevier Ltd
资助项目: Briner, J.P. ; Department of Geology, University at BuffaloUnited States ; 电子邮件: jbriner@buffalo.edu
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59504
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作者单位: Department of Geology, University at Buffalo, Buffalo, NY, United States; School of Earth Sciences & Environmental Sustainability, Northern Arizona University, Flagstaff, AZ, United States; Dept of Earth and Planetary Sciences, Northwestern University, Evanston, IL, United States; Geological Survey of Denmark and Greenland, Copenhagen, Denmark; Department of Geosciences, University of Massachusetts, Amherst, MA, United States; Centre de recherche en géochimie et géodynamique (Geotop), Université du Québec à Montréal, Montréal, QC, Canada; Department of Geology, University of Ottawa, Ottawa, ON, Canada; Centre Eau Terre Environnement, Institut national de la recherche scientifique, Québec, Qc, Canada; GEOTOP Research Center, Montréal, Qc, Canada; Department of Geography, Environment and Geomatics, University of Ottawa, Ottawa, ON, Canada; Institute of Arctic and Alpine Research, University of Colorado, Boulder, United States; Department of Geological Sciences and Institute of Arctic and Alpine Research, University of Colorado, Boulder, United States; Institute of Geology and Mineralogy, University of Cologne, Köln, Germany

Recommended Citation:
Briner J.P.,McKay N.P.,Axford Y.,et al. Holocene climate change in Arctic Canada and Greenland[J]. Quaternary Science Reviews,2016-01-01,147
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