globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2526
论文题名:
Estimates of volcanic-induced cooling in the Northern Hemisphere over the past 1,500 years
作者: Stoffel M.; Khodri M.; Corona C.; Guillet S.; Poulain V.; Bekki S.; Guiot J.; Luckman B.H.; Oppenheimer C.; Lebas N.; Beniston M.; Masson-Delmotte V.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2015
卷: 8, 期:10
起始页码: 784
结束页码: 788
语种: 英语
Scopus关键词: aerosol ; climate forcing ; climate modeling ; cooling ; estimation method ; Northern Hemisphere ; paleotemperature ; proxy climate record ; reconstruction ; tree ring ; volcanic eruption
英文摘要: Explosive volcanism can alter global climate, and hence trigger economic, political and demographic change. The climatic impact of the largest volcanic events has been assessed in numerous modelling studies and tree-ring-based hemispheric temperature reconstructions. However, volcanic surface cooling derived from climate model simulations is systematically much stronger than the cooling seen in tree-ring-based proxies, suggesting that the proxies underestimate cooling; and/or the modelled forcing is unrealistically high. Here, we present summer temperature reconstructions for the Northern Hemisphere from tree-ring width and maximum latewood density over the past 1,500 years. We also simulate the climate effects of two large eruptions, in AD 1257 and 1815, using a climate model that accounts explicitly for self-limiting aerosol microphysical processes. Our tree-ring reconstructions show greater cooling than reconstructions with lower spatial coverage and based on tree-ring width alone, whereas our simulations show less cooling than previous simulations relying on poorly constrained eruption seasons and excluding nonlinear aerosol microphysics. Our tree-ring reconstructions and climate simulations are in agreement, with a mean Northern Hemisphere extra-tropical summer cooling over land of 0.8 to 1.3 °C for these eruptions. This reconciliation of proxy and model evidence paves the way to improved assessment of the role of both past and future volcanism in climate forcing. © 2015 Macmillan Publishers Limited. All rights reserved.
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被引频次[WOS]:195   [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/106161
Appears in Collections:气候减缓与适应
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作者单位: Climatic Change and Climate Impacts, Institute for Environmental Sciences, University of Geneva, Boulevard Carl-Vogt 66, Geneva, Switzerland; Section of Earth and Environmental Sciences, University of Geneva, rue des Maraîchers 13, Geneva, Switzerland; Dendrolab.ch, Institute of Geological Sciences, University of Berne, Baltzerstrasse 1+3, Berne, Switzerland; Laboratoire d'Oceanographie et du Climat: Experimentations et Approches Numeriques, Sorbonne Universités, UPMC Université Paris 06, IPSL, UMR CNRS/IRD/MNHN, Paris, France; Geolab, Université Blaise Pascal, 4 rue Ledru, Clermont-Ferrand, France; Laboratoire Atmosphères, Milieux, Observations Spatiales, Sorbonne Universités, UPMC Université Paris 06, IPSL, UMR CNRS/UVSQ, Paris, France; Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement, Avenue Louis Philibert, Aix en Provence, France; Department of Geography, University OfWestern Ontario, 1151 Richmond Street, London, ON, Canada; Department of Geography, University of Cambridge, Downing Place, Cambridge, United Kingdom; Laboratoire des Sciences du Climat et de l'Environnement, Institut Pierre Simon Laplace/CEA-CNRS-UVSQ UMR 8212, L'Orme des Merisiers, Gif-sur-Yvette, France

Recommended Citation:
Stoffel M.,Khodri M.,Corona C.,et al. Estimates of volcanic-induced cooling in the Northern Hemisphere over the past 1,500 years[J]. Nature Geoscience,2015-01-01,8(10)
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