气候变化领域集成服务门户(CCPortal): Global hydroclimatic response to tropical volcanic eruptions over the last millennium

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DOI	10.1073/pnas.2019145118
	Global hydroclimatic response to tropical volcanic eruptions over the last millennium
	Tejedor E.; Steiger N.J.; Smerdon J.E.; Serrano-Notivoli R.; Vuille M.
发表日期	2021
ISSN	00278424
卷号	118 期号:12
英文摘要	Large tropical volcanic eruptions can affect the climate of many regions on Earth, yet it is uncertain how the largest eruptions over the past millennium may have altered Earth’s hydroclimate. Here, we analyze the global hydroclimatic response to all the tropical volcanic eruptions over the past millennium that were larger than the Mount Pinatubo eruption of 1991. Using the Paleo Hydrodynamics Data Assimilation product (PHYDA), we find that these large volcanic eruptions tended to produce dry conditions over tropical Africa, Central Asia and the Middle East and wet conditions over much of Oceania and the South American monsoon region. These anomalies are statistically significant, and they persisted for more than a decade in some regions. The persistence of the anomalies is associated with southward shifts in the Intertropical Convergence Zone and sea surface temperature changes in the Pacific and Atlantic oceans. We compare the PHYDA results with the stand-alone model response of the Community Earth System Model (CESM)-Last Millennium Ensemble. We find that the proxy-constrained PHYDA estimates are larger and more persistent than the responses simulated by CESM. Understanding which of these estimates is more realistic is critical for accurately characterizing the hydroclimate risks of future volcanic eruptions. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Volcanic impacts \| hydroclimate \| Paleo data assimilation \| global
语种	英语
scopus关键词	Africa; article; Atlantic Ocean; drought; hydroclimate; hydrodynamics; Middle East; Pacific islands; risk assessment; sea surface temperature; simulation; volcano
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180129
作者单位	Department of Atmospheric and Environmental Sciences, University at Albany, Albany, NY 12222, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States; Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem, 9190401, Israel; Department of Geography, Autonomous University of Madrid, Madrid, 28049, Spain
推荐引用方式 GB/T 7714	Tejedor E.,Steiger N.J.,Smerdon J.E.,et al. Global hydroclimatic response to tropical volcanic eruptions over the last millennium[J],2021,118(12).
APA	Tejedor E.,Steiger N.J.,Smerdon J.E.,Serrano-Notivoli R.,&Vuille M..(2021).Global hydroclimatic response to tropical volcanic eruptions over the last millennium.Proceedings of the National Academy of Sciences of the United States of America,118(12).
MLA	Tejedor E.,et al."Global hydroclimatic response to tropical volcanic eruptions over the last millennium".Proceedings of the National Academy of Sciences of the United States of America 118.12(2021).