气候变化领域集成服务门户(CCPortal): A Major Combustion Aerosol Event Had a Negligible Impact on the Atmospheric Ice-Nucleating Particle Population

CCPortal

DOI	10.1029/2020JD032938
	A Major Combustion Aerosol Event Had a Negligible Impact on the Atmospheric Ice-Nucleating Particle Population
	Adams M.P.; Tarn M.D.; Sanchez-Marroquin A.; Porter G.C.E.; O'Sullivan D.; Harrison A.D.; Cui Z.; Vergara-Temprado J.; Carotenuto F.; Holden M.A.; Daily M.I.; Whale T.F.; Sikora S.N.F.; Burke I.T.; Shim J.-U.; McQuaid J.B.; Murray B.J.
发表日期	2020
ISSN	2169897X
卷号	125 期号:22
英文摘要	Clouds containing supercooled water are important for both climate and weather, but our knowledge of which aerosol particle types nucleate ice in these clouds is far from complete. Combustion aerosols have strong anthropogenic sources, and if these aerosol types were to nucleate ice in clouds, they might exert a climate forcing. Here, we quantified the atmospheric ice-nucleating particle (INP) concentrations during the United Kingdom's annual Bonfire Night celebrations, which are characterized by large amounts of combustion aerosol from bonfires and fireworks. We used three immersion mode techniques covering more than 6 orders of magnitude in INP concentration over the temperature range from −10°C to homogeneous freezing. We found no observable systematic change in the INP concentration on three separate nights, despite more than a factor of 10 increase in aerosol number concentrations, up to a factor of 10 increase in PM10 concentration, and more than a factor of 100 increase in black carbon (BC) mass concentration relative to pre-event levels. This implies that BC and other combustion aerosol such as ash did not compete with the INPs present in the background air. Furthermore, the upper limit of the ice-active site surface density, ns(T), of BC generated in these events was shown to be consistent with several other recent laboratory studies, showing a very low ice-nucleating activity of BC. We conclude that combustion aerosol particles similar to those emitted on Bonfire Night are at most of secondary importance for the INP population relevant for mixed-phase clouds in typical midlatitude terrestrial locations. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	black carbon; combustion aerosol; ice nucleation; immersion freezing; mixed-phase clouds; soot
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185634
作者单位	Institute of Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, United Kingdom; School of Physics and Astronomy, University of Leeds, Leeds, United Kingdom; Now at The Stars Group, Wellington Place, Leeds, United Kingdom; Now at Institute for Atmospheric and Climate Science, ETH Zürich, Zurich, Switzerland; Institute of Ecology, University of Innsbruck, Innsbruck, Austria; CNR Institute of BioMeteorology, Florence, Italy; Now at CNR Institute of BioEconomy, Florence, Italy; School of Chemistry, University of Leeds, Leeds, United Kingdom; Now at School of Physical Sciences and Computing, University of Central Lancashire, Preston, United Kingdom; Now at Department of Chemistry, University of Warwick, Coventry, United Kingdom; Earth Science Institute, School of Earth and Environment, University of Leeds, Leeds, United Kingdom
推荐引用方式 GB/T 7714	Adams M.P.,Tarn M.D.,Sanchez-Marroquin A.,et al. A Major Combustion Aerosol Event Had a Negligible Impact on the Atmospheric Ice-Nucleating Particle Population[J],2020,125(22).
APA	Adams M.P..,Tarn M.D..,Sanchez-Marroquin A..,Porter G.C.E..,O'Sullivan D..,...&Murray B.J..(2020).A Major Combustion Aerosol Event Had a Negligible Impact on the Atmospheric Ice-Nucleating Particle Population.Journal of Geophysical Research: Atmospheres,125(22).
MLA	Adams M.P.,et al."A Major Combustion Aerosol Event Had a Negligible Impact on the Atmospheric Ice-Nucleating Particle Population".Journal of Geophysical Research: Atmospheres 125.22(2020).