气候变化领域集成服务门户(CCPortal): Strong impact of wildfires on the abundance and aging of black carbon in the lowermost stratosphere

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DOI	10.1073/pnas.1806868115
	Strong impact of wildfires on the abundance and aging of black carbon in the lowermost stratosphere
	Ditas J.; Ma N.; Zhang Y.; Assmann D.; Neumaier M.; Riede H.; Karu E.; Williams J.; Scharffe D.; Wang Q.; Saturno J.; Schwarz J.P.; Katich J.M.; McMeeking G.R.; Zahn A.; Hermann M.; Brenninkmeijer C.A.M.; Andreae M.O.; Pöschl U.; Su H.; Cheng Y.
发表日期	2018
ISSN	0027-8424
起始页码	E11595
结束页码	E11603
卷号	115 期号:50
英文摘要	Wildfires inject large amounts of black carbon (BC) particles into the atmosphere, which can reach the lowermost stratosphere (LMS) and cause strong radiative forcing. During a 14-month period of observations on board a passenger aircraft flying between Europe and North America, we found frequent and widespread biomass burning (BB) plumes, influencing 16 of 160 flight hours in the LMS. The average BC mass concentrations in these plumes (∼140 ng·m−3, standard temperature and pressure) were over 20 times higher than the background concentration (∼6 ng·m−3) with more than 100-fold enhanced peak values (up to ∼720 ng·m−3). In the LMS, nearly all BC particles were covered with a thick coating. The average mass equivalent diameter of the BC particle cores was ∼120 nm with a mean coating thickness of ∼150 nm in the BB plume and ∼90 nm with a coating of ∼125 nm in the background. In a BB plume that was encountered twice, we also found a high diameter growth rate of ∼1 nm·h−1 due to the BC particle coatings. The observed high concentrations and thick coatings of BC particles demonstrate that wildfires can induce strong local heating in the LMS and may have a significant influence on the regional radiative forcing of climate. © 2018 National Academy of Sciences. All Rights Reserved.
英文关键词	Biomass burning; Black carbon; Climate change; High altitude; Mixing state
语种	英语
scopus关键词	black carbon; aging; aircraft; Article; biomass; burn; climate; climate change; controlled study; Europe; growth rate; North America; plume; priority journal; stratosphere; temperature; wildfire
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160438
作者单位	Ditas, J., Center for Air Pollution and Climate Change Research (APCC), Jinan University, Guangzhou, 510632, China, Minerva Research Group, Max Planck Institute for Chemistry, Mainz, 55128, Germany; Ma, N., Center for Air Pollution and Climate Change Research (APCC), Jinan University, Guangzhou, 510632, China, Minerva Research Group, Max Planck Institute for Chemistry, Mainz, 55128, Germany; Zhang, Y., Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, 55128, Germany; Assmann, D., Experimental Aerosol and Cloud Microphysics, Leibniz Institute for Tropospheric Research, Leipzig, 04318, Germany; Neumaier, M., Institute of Meteorology and, Climate Research (IMK) - Atmospheric Trace Gases and Remote Sensing (ASF), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, 76344, Germany; Riede, H., Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, 55128, Germany, Department of Research and Development, Central Meteorological Application Development, Remote...
推荐引用方式 GB/T 7714	Ditas J.,Ma N.,Zhang Y.,et al. Strong impact of wildfires on the abundance and aging of black carbon in the lowermost stratosphere[J],2018,115(50).
APA	Ditas J..,Ma N..,Zhang Y..,Assmann D..,Neumaier M..,...&Cheng Y..(2018).Strong impact of wildfires on the abundance and aging of black carbon in the lowermost stratosphere.Proceedings of the National Academy of Sciences of the United States of America,115(50).
MLA	Ditas J.,et al."Strong impact of wildfires on the abundance and aging of black carbon in the lowermost stratosphere".Proceedings of the National Academy of Sciences of the United States of America 115.50(2018).