气候变化领域集成服务门户(CCPortal): Speleothems of South American and Asian Monsoons Influenced by a Green Sahara

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DOI	10.1029/2020GL089695
	Speleothems of South American and Asian Monsoons Influenced by a Green Sahara
	Tabor C.; Otto-Bliesner B.; Liu Z.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	The mid-Holocene is frequently used for climate model-proxy comparison studies, yet models often struggle to replicate the proxy signals from this period. Here, we use an Earth system model that tracks water isotopologies to determine the importance of a vegetated Sahara in the simulation of mid-Holocene climate, with a focus on δ18O values recorded in speleothems from the South American and Asian monsoon regions. We find that inclusion of a vegetated Sahara during the mid-Holocene leads to global warming and generally amplifies the changes in the δ18O values of the precipitation in the South American and Asian monsoon regions relative to preindustrial; both feedbacks improve model-proxy agreement. Our results highlight the importance of regional vegetation alteration for accurate simulation of past climate, even when the region of study is far from the source of vegetation change. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric thermodynamics; Global warming; Vegetation; Asian monsoon; Comparison study; Earth system model; Holocene climate; Holocenes; Pre-industrial; Vegetation change; Climate models; climate signal; global warming; Holocene; isotopic composition; monsoon; oxygen isotope; proxy climate record; speleothem; vegetation cover; Sahara; South America
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/169386
作者单位	Department of Geosciences, University of Connecticut, Storrs, CT, United States; Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Department of Geography, The Ohio State University, Columbus, OH, United States
推荐引用方式 GB/T 7714	Tabor C.,Otto-Bliesner B.,Liu Z.. Speleothems of South American and Asian Monsoons Influenced by a Green Sahara[J],2020,47(22).
APA	Tabor C.,Otto-Bliesner B.,&Liu Z..(2020).Speleothems of South American and Asian Monsoons Influenced by a Green Sahara.Geophysical Research Letters,47(22).
MLA	Tabor C.,et al."Speleothems of South American and Asian Monsoons Influenced by a Green Sahara".Geophysical Research Letters 47.22(2020).