气候变化领域集成服务门户(CCPortal): Disproportionately strong climate forcing from extratropical explosive volcanic eruptions

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DOI	10.1038/s41561-018-0286-2
	Disproportionately strong climate forcing from extratropical explosive volcanic eruptions
	Toohey M.; Krüger K.; Schmidt H.; Timmreck C.; Sigl M.; Stoffel M.; Wilson R.
发表日期	2019
ISSN	17520894
卷号	12 期号:2
英文摘要	Extratropical volcanic eruptions are commonly thought to be less effective at driving large-scale surface cooling than tropical eruptions. However, recent minor extratropical eruptions have produced a measurable climate impact, and proxy records suggest that the most extreme Northern Hemisphere cold period of the Common Era was initiated by an extratropical eruption in 536 ce. Using ice-core-derived volcanic stratospheric sulfur injections and Northern Hemisphere summer temperature reconstructions from tree rings, we show here that in proportion to their estimated stratospheric sulfur injection, extratropical explosive eruptions since 750 ce have produced stronger hemispheric cooling than tropical eruptions. Stratospheric aerosol simulations demonstrate that for eruptions with a sulfur injection magnitude and height equal to that of the 1991 Mount Pinatubo eruption, extratropical eruptions produce time-integrated radiative forcing anomalies over the Northern Hemisphere extratropics up to 80% greater than tropical eruptions, as decreases in aerosol lifetime are overwhelmed by the enhanced radiative impact associated with the relative confinement of aerosol to a single hemisphere. The model results are consistent with the temperature reconstructions, and elucidate how the radiative forcing produced by extratropical eruptions is strongly dependent on the eruption season and sulfur injection height within the stratosphere. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	aerosol; climate effect; climate forcing; cooling; explosive; extratropical environment; ice core; Northern Hemisphere; proxy climate record; radiative forcing; stratosphere; temperature effect; volcanic eruption; Central Luzon; Luzon; Mount Pinatubo; Philippines; Zambales
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124713
作者单位	GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; Department of Geosciences, University of Oslo, Oslo, Norway; Max Planck Institute for Meteorology, Hamburg, Germany; Laboratory of Environmental Chemistry, Paul Scherrer Institute, Villigen, Switzerland; Oeschger Centre for Climate Change Research, Bern, Switzerland; Climate Change Impacts and Risks in the Anthropocene (C-CIA), Institute for Environmental Sciences, University of Geneva, Geneva, Switzerland; dendrolab.ch, Department of Earth Sciences, University of Geneva, Geneva, Switzerland; Department F.-A. Forel for Aquatic and Environmental Sciences, University of Geneva, Geneva, Switzerland; School of Earth and Environmental Sciences, University of St Andrews, Fife, United Kingdom; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States
推荐引用方式 GB/T 7714	Toohey M.,Krüger K.,Schmidt H.,et al. Disproportionately strong climate forcing from extratropical explosive volcanic eruptions[J],2019,12(2).
APA	Toohey M..,Krüger K..,Schmidt H..,Timmreck C..,Sigl M..,...&Wilson R..(2019).Disproportionately strong climate forcing from extratropical explosive volcanic eruptions.Nature Geoscience,12(2).
MLA	Toohey M.,et al."Disproportionately strong climate forcing from extratropical explosive volcanic eruptions".Nature Geoscience 12.2(2019).