气候变化领域集成服务门户(CCPortal): Population exposure to pre-emptive de-energization aimed at averting wildfires in Northern California

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DOI	10.1088/1748-9326/aba135
	Population exposure to pre-emptive de-energization aimed at averting wildfires in Northern California
	Abatzoglou J.T.; Smith C.M.; Swain D.L.; Ptak T.; Kolden C.A.
发表日期	2020
ISSN	17489318
卷号	15 期号:9
英文摘要	Recent extreme fire seasons in California have prompted utilities such as Pacific Gas and Electric to pre-emptively de-energize portions of the electrical grid during periods of extreme fire weather to reduce the risk of powerline-related fire ignitions. The policy was deployed in 2019, resulting in 12 million person-days of power outages and widespread societal disruption. Retrospective weather and vegetation moisture data highlight hotspots of historical risk across northern California. We estimate an average of 1.6 million person-days of de-energization per year, based on recent historical climate conditions and assuming publicly stated utility de-energization thresholds. We further estimate an additional 70% increase in the population affected by de-energization when vegetation remains abnormally dry later into autumn - suggesting that climate change will likely increase population vulnerable to de-energization. Adaptation efforts to curtail fire risk can be beneficial, but efforts to prepare affected populations, modernize the grid, and refine decision-making surrounding such policies have high potential to reduce the magnitude of negative externalities experienced during the 2019 de-energization events. © 2020 The Author(s). Published by IOP Publishing Ltd.
语种	英语
scopus关键词	Climate change; Decision making; Electric ignition; Fires; Vegetation; Climate condition; Electrical grids; Fire weather; High potential; Moisture data; Negative externalities; Population exposure; Power outage; Outages; conservation management; ecological impact; nature-society relations; wildfire; California; United States
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153770
作者单位	Management of Complex Systems, University of California, Merced, CA, United States; Jupiter Intelligence, San Mateo, CA, United States; Institute of the Environment and Sustainability, University of California, Los Angeles, CA, United States; Capacity Center for Climate and Weather Extremes, National Center for Atmospheric Research, Boulder, CO, United States; Nature Conservancy of California, San Francisco, CA, United States; Department of Geography, University of Idaho, ID, United States
推荐引用方式 GB/T 7714	Abatzoglou J.T.,Smith C.M.,Swain D.L.,et al. Population exposure to pre-emptive de-energization aimed at averting wildfires in Northern California[J],2020,15(9).
APA	Abatzoglou J.T.,Smith C.M.,Swain D.L.,Ptak T.,&Kolden C.A..(2020).Population exposure to pre-emptive de-energization aimed at averting wildfires in Northern California.Environmental Research Letters,15(9).
MLA	Abatzoglou J.T.,et al."Population exposure to pre-emptive de-energization aimed at averting wildfires in Northern California".Environmental Research Letters 15.9(2020).