气候变化领域集成服务门户(CCPortal): Widespread biomass burning smoke throughout the remote troposphere

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DOI	10.1038/s41561-020-0586-1
	Widespread biomass burning smoke throughout the remote troposphere
	Schill G.P.; Froyd K.D.; Bian H.; Kupc A.; Williamson C.; Brock C.A.; Ray E.; Hornbrook R.S.; Hills A.J.; Apel E.C.; Chin M.; Colarco P.R.; Murphy D.M.
发表日期	2020
ISSN	17520894
起始页码	422
结束页码	427
卷号	13 期号:6
英文摘要	Biomass burning emits ~34–41 Tg yr−1 of smoke aerosol to the atmosphere. Biomass burning aerosol directly influences the Earth’s climate by attenuation of solar and terrestrial radiation; however, its abundance and distribution on a global scale are poorly constrained, particularly after plumes dilute into the background remote troposphere and are subject to removal by clouds and precipitation. Here we report global-scale, airborne measurements of biomass burning aerosol in the remote troposphere. Measurements were taken during four series of seasonal flights over the Pacific and Atlantic Ocean basins, each with near pole-to-pole latitude coverage. We find that biomass burning particles in the remote troposphere are dilute but ubiquitous, accounting for one-quarter of the accumulation-mode aerosol number and one-fifth of the aerosol mass. Comparing our observations with a high-resolution global aerosol model, we find that the model overestimates biomass burning aerosol mass in the remote troposphere with a mean bias of >400%, largely due to insufficient wet removal by in-cloud precipitation. After updating the model’s aerosol removal scheme we find that, on a global scale, dilute smoke contributes as much as denser plumes to biomass burning’s scattering and absorption effects on the Earth’s radiation field. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	aerosol; airborne survey; biomass burning; cloud; global perspective; smoke; troposphere; Atlantic Ocean; Pacific Ocean
语种	英语
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206826
作者单位	Chemical Sciences Laboratory, NOAA Earth System Research Laboratories, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Joint Center for Environmental Technology University of Maryland Baltimore County, Baltimore, MD, United States; Laboratory for Atmospheres, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Faculty of Physics, Aerosol Physics and Environmental Physics, University of Vienna, Vienna, Austria; Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, United States
推荐引用方式 GB/T 7714	Schill G.P.,Froyd K.D.,Bian H.,et al. Widespread biomass burning smoke throughout the remote troposphere[J],2020,13(6).
APA	Schill G.P..,Froyd K.D..,Bian H..,Kupc A..,Williamson C..,...&Murphy D.M..(2020).Widespread biomass burning smoke throughout the remote troposphere.Nature Geoscience,13(6).
MLA	Schill G.P.,et al."Widespread biomass burning smoke throughout the remote troposphere".Nature Geoscience 13.6(2020).