Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD025688 |
In situ measurements of water uptake by black carbon-containing aerosol in wildfire plumes | |
Perring, Anne E.1,2; Schwarz, Joshua P.1; Markovic, Milos Z.1,2,3; Fahey, David W.1; Jimenez, Jose L.2,4; Campuzano-Jost, Pedro2,4; Palm, Brett D.2,4; Wisthaler, Armin5,6; Mikoviny, Tomas5; Diskin, Glenn7; Sachse, Glen7; Ziemba, Luke7; Anderson, Bruce7; Shingler, Taylor8; Crosbie, Ewan7,8; Sorooshian, Armin8,9; Yokelson, Robert10; Gao, Ru-Shan1 | |
2017-01-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada; Norway; Austria |
英文摘要 | Water uptake by black carbon (BC)-containing aerosol was quantified in North American wildfire plumes of varying age (1 to similar to 40 h old) sampled during the SEAC(4)RS mission (2013). A Humidified Dual SP2 (HD-SP2) is used to optically size BC-containing particles under dry and humid conditions from which we extract the hygroscopicity parameter, kappa , of materials internally mixed with BC. Instrumental variability and the uncertainty of the technique are briefly discussed. An ensemble average kappa of 0.04 is found for the set of plumes sampled, consistent with previous estimates of bulk aerosol hygroscopicity from biomass burning sources. The temporal evolution of kappa in the Yosemite Rim Fire plume is explored to constrain the rate of conversion of BC-containing aerosol from hydrophobic to more hydrophilic modes in these emissions. A BC-specific kappa increase of similar to 0.06 over 40 h is found, fit well with an exponential curve corresponding to a transition from a kappa of 0 to a kappa of similar to 0.09 with an e-folding time of 29 h. Although only a few percent of wildfire particles contain BC, a similar kappa increase is estimated for bulk aerosol and the measured aerosol composition is used to infer that the observed kappa change is driven by a combination of incorporation of ammonium sulfate and oxidation of existing organic materials. Finally, a substantial fraction of wildfire-generated BC-containing aerosol is calculated to be active as cloud condensation nuclei shortly after emission likely indicating efficient wet removal. These results can constrain model treatment of BC from wildfire sources. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396116900031 |
WOS关键词 | PARTICLE SOOT PHOTOMETER ; CONDENSATION NUCLEUS ACTIVITY ; LONG-RANGE TRANSPORT ; ORGANIC AEROSOL ; OPTICAL-PROPERTIES ; HYGROSCOPIC PROPERTIES ; MIXING STATE ; ATMOSPHERIC LIFETIME ; SMOKE ; EVOLUTION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33011 |
专题 | 气候变化 |
作者单位 | 1.NOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO 80305 USA; 2.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 3.Picarro Inc, Toronto, ON, Canada; 4.Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA; 5.Univ Oslo, Dept Chem, Oslo, Norway; 6.Univ Innsbruck, Inst Ion Phys & Appl Phys, Innsbruck, Austria; 7.NASA, Langley Res Ctr, Hampton, VA USA; 8.Univ Arizona, Dept Chem & Environm Engn, Tucson, AZ USA; 9.Univ Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ USA; 10.Univ Montana, Dept Chem, Missoula, MT 59812 USA |
推荐引用方式 GB/T 7714 | Perring, Anne E.,Schwarz, Joshua P.,Markovic, Milos Z.,et al. In situ measurements of water uptake by black carbon-containing aerosol in wildfire plumes[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(2). |
APA | Perring, Anne E..,Schwarz, Joshua P..,Markovic, Milos Z..,Fahey, David W..,Jimenez, Jose L..,...&Gao, Ru-Shan.(2017).In situ measurements of water uptake by black carbon-containing aerosol in wildfire plumes.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(2). |
MLA | Perring, Anne E.,et al."In situ measurements of water uptake by black carbon-containing aerosol in wildfire plumes".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.2(2017). |
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