气候变化领域集成服务门户(CCPortal): Resolving the Differences in the Simulated and Reconstructed Temperature Response to Volcanism

CCPortal

DOI	10.1029/2019GL086908
	Resolving the Differences in the Simulated and Reconstructed Temperature Response to Volcanism
	Zhu F.; Emile-Geay J.; Hakim G.J.; King J.; Anchukaitis K.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:8
英文摘要	Explosive volcanism imposes impulse-like radiative forcing on the climate system, providing a natural experiment to study the climate response to perturbation. Previous studies have identified disagreements between paleoclimate reconstructions and climate model simulations with respect to the magnitude and recovery from volcanic cooling, questioning the fidelity of climate model simulations, reconstructions, or both. Using the paleoenvironmental data assimilation framework of the Last Millennium Reanalysis, this study investigates the causes of the disagreements, using both real and simulated data. We demonstrate that discrepancies since 1600 CE can be largely resolved by assimilating tree-ring density records only, targeting growing season temperature instead of annual temperature, and performing the comparison at proxy locales. Simulations of eruptions earlier in the last millennium may also reflect uncertainties in forcing and modeled aerosol microphysics. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric radiation; Explosives; Annual temperatures; Climate model simulations; Data assimilation; Explosive volcanism; Natural experiment; Paleoclimate reconstruction; Radiative forcings; Temperature response; Climate models; aerosol; climate modeling; data assimilation; explosive volcanism; growing season; paleoclimate; radiative forcing; reconstruction; temperature effect; tree ring
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170461
作者单位	Department of Earth Sciences, University of Southern California, Los Angeles, CA, United States; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Department of Geosciences, University of Arizona, Tucson, AZ, United States; Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ, United States; School of Geography and Development, University of Arizona, Tucson, AZ, United States
推荐引用方式 GB/T 7714	Zhu F.,Emile-Geay J.,Hakim G.J.,et al. Resolving the Differences in the Simulated and Reconstructed Temperature Response to Volcanism[J],2020,47(8).
APA	Zhu F.,Emile-Geay J.,Hakim G.J.,King J.,&Anchukaitis K.J..(2020).Resolving the Differences in the Simulated and Reconstructed Temperature Response to Volcanism.Geophysical Research Letters,47(8).
MLA	Zhu F.,et al."Resolving the Differences in the Simulated and Reconstructed Temperature Response to Volcanism".Geophysical Research Letters 47.8(2020).