气候变化领域集成服务门户(CCPortal): Observed increases in extreme fire weather driven by atmospheric humidity and temperature

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DOI	10.1038/s41558-021-01224-1
	Observed increases in extreme fire weather driven by atmospheric humidity and temperature
	Jain, Piyush; Castellanos-Acuna, Dante; Coogan, Sean C. P.; Abatzoglou, John T.; Flannigan, Mike D.
发表日期	2022
ISSN	1758-678X
EISSN	1758-6798
起始页码	63
结束页码	+
卷号	12 期号:1
英文摘要	Recent increases in regional wildfire activity have been linked to climate change. Here, we analyse trends in observed global extreme fire weather and their meteorological drivers from 1979 to 2020 using the ERA5 reanalysis. Trends in annual extreme (95th percentile) values of the fire weather index (FWI95), initial spread index (ISI95) and vapour pressure deficit (VPD95) varied regionally, with global increases in mean values of 14, 12 and 12%, respectively. Significant increases occurred over a quarter to almost half of the global burnable land mass. Decreasing relative humidity was a driver of over three-quarters of significant increases in FWI95 and ISI95, while increasing temperature was a driver for 40% of significant trends. Trends in VPD95 were predominantly associated with increasing temperature. These trends are likely to continue, as climate change projections suggest global decreases in relative humidity and increases in temperature that may increase future fire risk where fuels remain abundant. Climate change has led to increased fire activity in parts of the globe due to observed increases in fire weather extremes. These trends are driven predominantly by decreasing relative humidity and increasing temperature.
语种	英语
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED) ; Social Science Citation Index (SSCI)
WOS记录号	WOS:000722542700005
来源期刊	NATURE CLIMATE CHANGE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280430
作者单位	Natural Resources Canada; Canadian Forest Service; University of Alberta; University of California System; University of California Merced
推荐引用方式 GB/T 7714	Jain, Piyush,Castellanos-Acuna, Dante,Coogan, Sean C. P.,et al. Observed increases in extreme fire weather driven by atmospheric humidity and temperature[J],2022,12(1).
APA	Jain, Piyush,Castellanos-Acuna, Dante,Coogan, Sean C. P.,Abatzoglou, John T.,&Flannigan, Mike D..(2022).Observed increases in extreme fire weather driven by atmospheric humidity and temperature.NATURE CLIMATE CHANGE,12(1).
MLA	Jain, Piyush,et al."Observed increases in extreme fire weather driven by atmospheric humidity and temperature".NATURE CLIMATE CHANGE 12.1(2022).