气候变化领域集成服务门户(CCPortal): Rapid Growth of Large Forest Fires Drives the Exponential Response of Annual Forest-Fire Area to Aridity in the Western United States

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DOI	10.1029/2021GL097131
	Rapid Growth of Large Forest Fires Drives the Exponential Response of Annual Forest-Fire Area to Aridity in the Western United States
	Juang, C. S.; Williams, A. P.; Abatzoglou, J. T.; Balch, J. K.; Hurteau, M. D.; Moritz, M. A.
发表日期	2022
ISSN	0094-8276
EISSN	1944-8007
卷号	49 期号:5
英文摘要	Annual forest area burned (AFAB) in the western United States (US) has increased as a positive exponential function of rising aridity in recent decades. This non-linear response has important implications for AFAB in a changing climate, yet the cause of the exponential AFAB-aridity relationship has not been given rigorous attention. We investigated the exponential AFAB-aridity relationship in western US forests using a new 1984-2019 database of fire events and 2001-2020 satellite-based records of daily fire growth. While forest-fire frequency and duration grow linearly with aridity, the exponential AFAB-aridity relationship results from the exponential growth rates of individual fires. Larger fires generally have more potential for growth due to more extensive firelines. Thus, forces that promote fire growth, such as aridification, have more potent effects on larger fires. As aridity increases linearly, the potential for growth of large fires accelerates, leading to exponential increases in AFAB.
英文关键词	western US; climate change; wildfires; drought; extremes; database
语种	英语
WOS研究方向	Geosciences, Multidisciplinary
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000773409300031
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/280482
作者单位	Columbia University; Columbia University; University of California System; University of California Los Angeles; University of California System; University of California Merced; University of Colorado System; University of Colorado Boulder; University of Colorado System; University of Colorado Boulder; University of New Mexico; University of California System; University of California Santa Barbara; University of California System; University of California Santa Barbara
推荐引用方式 GB/T 7714	Juang, C. S.,Williams, A. P.,Abatzoglou, J. T.,et al. Rapid Growth of Large Forest Fires Drives the Exponential Response of Annual Forest-Fire Area to Aridity in the Western United States[J],2022,49(5).
APA	Juang, C. S.,Williams, A. P.,Abatzoglou, J. T.,Balch, J. K.,Hurteau, M. D.,&Moritz, M. A..(2022).Rapid Growth of Large Forest Fires Drives the Exponential Response of Annual Forest-Fire Area to Aridity in the Western United States.GEOPHYSICAL RESEARCH LETTERS,49(5).
MLA	Juang, C. S.,et al."Rapid Growth of Large Forest Fires Drives the Exponential Response of Annual Forest-Fire Area to Aridity in the Western United States".GEOPHYSICAL RESEARCH LETTERS 49.5(2022).