气候变化领域集成服务门户(CCPortal): Interannual variability and climatic sensitivity of global wildfire activity

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DOI	10.1016/j.accre.2021.07.001
	Interannual variability and climatic sensitivity of global wildfire activity
	Tang R.; Mao J.; Jin M.; Chen A.; Yu Y.; Shi X.; Zhang Y.; Hoffman F.M.; Xu M.; Wang Y.
发表日期	2021
ISSN	1674-9278
起始页码	686
结束页码	695
卷号	12 期号:5
英文摘要	Understanding historical wildfire variations and their environmental driving mechanisms is key to predicting and mitigating wildfires. However, current knowledge of climatic responses and regional contributions to the interannual variability (IAV) of global burned area remains limited. Using recent satellite-derived wildfire products and simulations from version v1.0 of the land component of the U.S. Department of Energy's Energy Exascale Earth System Model (E3SM land model [ELM] v1) driven by three different climate forcings, we investigated the burned area IAV and its climatic sensitivity globally and across nine biomes from 1997 to 2018. We found that 1) the ELM simulations generally agreed with the satellite observations in terms of the burned area IAV magnitudes, regional contributions, and covariations with climate factors, confirming the robustness of the ELM to the usage of different climate forcing sources; 2) tropical savannas, tropical forests, and semi-arid grasslands near deserts were primary contributors to the global burned area IAV, collectively accounting for 71.7%–99.7% of the global wildfire IAV estimated by both the satellite observations and ELM simulations; 3) precipitation was a major fire suppressing factor and dominated the global and regional burned area IAVs, and temperature and shortwave solar radiation were mostly positively related with burned area IAVs; and 4) noticeable local discrepancies between the ELM and remote-sensing results occurred in semi-arid grasslands, croplands, boreal forests, and wetlands, likely caused by uncertainties in the current ELM fire scheme and the imperfectly derived satellite observations. Our findings revealed the spatiotemporal diversity of wildfire variations, regional contributions and climatic responses, and provided new metrics for wildfire modeling, facilitating the wildfire prediction and management. © 2021 The Authors
英文关键词	Burned area; Climatic sensitivity; E3SM land model; Global fire emission database; Wildfire
来源期刊	Advances in Climate Change Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236452
作者单位	Institute for a Secure and Sustainable Environment, University of Tennessee, Knoxville, 37996, United States; Environmental Sciences Division and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, 37830, United States; Department of Biology and Graduate Degree Program in Ecology, Colorado State University, Fort Collins, 80523, United States; Atmospheric and Oceanic Sciences Program, Princeton University, Princeton, 08544, United States; Computational Sciences and Engineering Division and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, 37830, United States
推荐引用方式 GB/T 7714	Tang R.,Mao J.,Jin M.,et al. Interannual variability and climatic sensitivity of global wildfire activity[J],2021,12(5).
APA	Tang R..,Mao J..,Jin M..,Chen A..,Yu Y..,...&Wang Y..(2021).Interannual variability and climatic sensitivity of global wildfire activity.Advances in Climate Change Research,12(5).
MLA	Tang R.,et al."Interannual variability and climatic sensitivity of global wildfire activity".Advances in Climate Change Research 12.5(2021).