globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2015JD024498
论文题名:
Airborne characterization of subsaturated aerosol hygroscopicity and dry refractive index from the surface to 6.5 km during the SEAC4RS campaign
作者: Shingler T.; Crosbie E.; Ortega A.; Shiraiwa M.; Zuend A.; Beyersdorf A.; Ziemba L.; Anderson B.; Thornhill L.; Perring A.E.; Schwarz J.P.; Campazano-Jost P.; Day D.A.; Jimenez J.L.; Hair J.W.; Mikoviny T.; Wisthaler A.; Sorooshian A.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2016
卷: 121, 期:8
起始页码: 4188
结束页码: 4210
语种: 英语
英文关键词: aerosol ; biomass burning ; DASH-SP ; hygroscopicity ; refractive index ; SEAC4RS
英文摘要: In situ aerosol particle measurements were conducted during 21 NASA DC-8 flights in the Studies of Emissions and Atmospheric Composition, Clouds, and Climate Coupling by Regional Surveys field campaign over the United States, Canada, Pacific Ocean, and Gulf of Mexico. For the first time, this study reports rapid, size-resolved hygroscopic growth and real refractive index (RI at 532 nm) data between the surface and upper troposphere in a variety of air masses including wildfires, agricultural fires, biogenic, marine, and urban outflow. The Differential Aerosol Sizing and Hygroscopicity Spectrometer Probe (DASH-SP) quantified size-resolved diameter growth factors (GF = Dp,wet/Dp,dry) that are used to infer the hygroscopicity parameter κ. Thermokinetic simulations were conducted to estimate the impact of partial particle volatilization within the DASH-SP across a range of sampling conditions. Analyses of GF and RI data as a function of air mass origin, dry size, and altitude are reported, in addition to κ values for the inorganic and organic fractions of aerosol. Average RI values are found to be fairly constant (1.52-1.54) for all air mass categories. An algorithm is used to compare size-resolved DASH-SP GF with bulk scattering f(RH = 80%) data obtained from a pair of nephelometers, and the results show that the two can only be reconciled if GF is assumed to decrease with increasing dry size above 400 nm (i.e., beyond the upper bound of DASH-SP measurements). Individual case studies illustrate variations of hygroscopicity as a function of dry size, environmental conditions, altitude, and composition. ©2016. American Geophysical Union. All Rights Reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62920
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, United States; Langley Research Center Chemistry and Dynamics Branch, National Aeronautics and Space Administration, Hampton, VA, United States; Oak Ridge Assoc. Universities, Oak Ridge, TN, United States; Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, QC, Canada; Science Systems and Applications, Inc., Hampton, VA, United States; Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Department of Chemistry and Biochemistry, University of Colorado Boulder, Boulder, CO, United States; Department of Chemistry, University of Oslo, Oslo, Norway; Institute for Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria; Department of Atmospheric Sciences, University of Arizona, Tucson, AZ, United States

Recommended Citation:
Shingler T.,Crosbie E.,Ortega A.,et al. Airborne characterization of subsaturated aerosol hygroscopicity and dry refractive index from the surface to 6.5 km during the SEAC4RS campaign[J]. Journal of Geophysical Research: Atmospheres,2016-01-01,121(8)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Shingler T.]'s Articles
[Crosbie E.]'s Articles
[Ortega A.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Shingler T.]'s Articles
[Crosbie E.]'s Articles
[Ortega A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Shingler T.]‘s Articles
[Crosbie E.]‘s Articles
[Ortega A.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.