气候变化领域集成服务门户(CCPortal): Increasing large wildfires over the western United States linked to diminishing sea ice in the Arctic

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DOI	10.1038/s41467-021-26232-9
	Increasing large wildfires over the western United States linked to diminishing sea ice in the Arctic
	Zou Y.; Rasch P.J.; Wang H.; Xie Z.; Zhang R.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The compound nature of large wildfires in combination with complex physical and biophysical processes affecting variations in hydroclimate and fuel conditions makes it difficult to directly connect wildfire changes over fire-prone regions like the western United States (U.S.) with anthropogenic climate change. Here we show that increasing large wildfires during autumn over the western U.S. are fueled by more fire-favorable weather associated with declines in Arctic sea ice during preceding months on both interannual and interdecadal time scales. Our analysis (based on observations, climate model sensitivity experiments, and a multi-model ensemble of climate simulations) demonstrates and explains the Arctic-driven teleconnection through regional circulation changes with the poleward-shifted polar jet stream and enhanced fire-favorable surface weather conditions. The fire weather changes driven by declining Arctic sea ice during the past four decades are of similar magnitude to other leading modes of climate variability such as the El Niño-Southern Oscillation that also influence fire weather in the western U.S. © 2021, Battelle Memorial Institute.
语种	英语
scopus关键词	climate modeling; jet stream; sea ice; teleconnection; wildfire; Arctic; article; autumn; climate change; El Nino; sea ice; simulation; United States; weather; wildfire; Arctic; United States
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250591
作者单位	Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States; International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Our Kettle, Inc., Kensington, CA 94707, United States
推荐引用方式 GB/T 7714	Zou Y.,Rasch P.J.,Wang H.,et al. Increasing large wildfires over the western United States linked to diminishing sea ice in the Arctic[J],2021,12(1).
APA	Zou Y.,Rasch P.J.,Wang H.,Xie Z.,&Zhang R..(2021).Increasing large wildfires over the western United States linked to diminishing sea ice in the Arctic.Nature Communications,12(1).
MLA	Zou Y.,et al."Increasing large wildfires over the western United States linked to diminishing sea ice in the Arctic".Nature Communications 12.1(2021).