globalchange  > 气候变化与战略
DOI: 10.1038/s41561-020-0586-1
论文题名:
Widespread biomass burning smoke throughout the remote troposphere
作者: 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.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2020
卷: 13, 期:6
起始页码: 422
结束页码: 427
语种: 英语
英文关键词: aerosol ; airborne survey ; biomass burning ; cloud ; global perspective ; smoke ; troposphere ; Atlantic Ocean ; Pacific Ocean
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169670
Appears in Collections:气候变化与战略

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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

Recommended Citation:
Schill G.P.,Froyd K.D.,Bian H.,et al. Widespread biomass burning smoke throughout the remote troposphere[J]. Nature Geoscience,2020-01-01,13(6)
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