Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026638 |
Contrasting aerosol refractive index and hygroscopicity in the inflow and outflow of deep convective storms: Analysis of airborne data from DC3 | |
Sorooshian, Armin1,2; Shingler, T.3,4; Crosbie, E.3,4; Barth, M. C.5; Homeyer, C. R.6; Campuzano-Jost, P.7,8; Day, D. A.7,8; Jimenez, J. L.7,8; Thornhill, K. L.3,9; Ziemba, L. D.3; Blake, D. R.10; Fried, A.11 | |
2017-04-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We examine three case studies during the Deep Convective Clouds and Chemistry (DC3) field experiment when storm inflow and outflow air were sampled for aerosol subsaturated hygroscopicity and the real part of refractive index (n) with a Differential Aerosol Sizing and Hygroscopicity Probe (DASH-SP) on the NASA DC-8. Relative to inflow aerosol particles, outflow particles were more hygroscopic (by 0.03 based on the estimated parameter) in one of the three storms examined. Two of three control flights with no storm convection reveal higher values, albeit by only 0.02, at high altitude (> 8km) versus < 4km. Entrainment modeling shows that measured values in the outflow of the three storm flights are higher than predicted values (by 0.03-0.11) based on knowledge of values from the inflow and clear air adjacent to the storms. This suggests that other process(es) contributed to hygroscopicity enhancements such as secondary aerosol formation via aqueous-phase chemistry. Values of n were higher in the outflow of two of the three storm flights, reaching as high as 1.54. More statistically significant differences were observed in control flights (no storms) where n decreased from 1.50-1.52 (< 4km) to 1.49-1.50 (> 8km). Chemical data show that enhanced hygroscopicity was coincident with lower organic mass fractions, higher sulfate mass fractions, and higher O:C ratios of organic aerosol. Refractive index did not correlate as well with available chemical data. Deep convection is shown to alter aerosol radiative properties, which has implications for aerosol effects on climate. |
英文关键词 | DC3 aerosol hygroscopicity refractive index entrainment cloud processing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401180800025 |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; CENTRAL UNITED-STATES ; HIGH-RESOLUTION ; MINERAL DUST ; RADAR OBSERVATIONS ; MARINE ATMOSPHERE ; UPPER TROPOSPHERE ; AMMA CAMPAIGN ; DASH-SP ; TRANSPORT |
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/33627 |
专题 | 气候变化 |
作者单位 | 1.Univ Arizona, Dept Chem & Environm Engn, Tucson, AZ 85721 USA; 2.Univ Arizona, Dept Hydrol & Atmospher Sci, Tucson, AZ 85721 USA; 3.NASA, Langley Res Ctr, Chem & Dynam Branch, Hampton, VA 23665 USA; 4.Univ Space Res Assoc, Columbia, MD USA; 5.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 6.Univ Oklahoma, Sch Meteorol, Norman, OK 73019 USA; 7.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 8.Univ Colorado, Dept Chem & Biochem, Campus Box 215, Boulder, CO 80309 USA; 9.Sci Syst & Applicat Inc, Hampton, VA USA; 10.Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA; 11.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA |
推荐引用方式 GB/T 7714 | Sorooshian, Armin,Shingler, T.,Crosbie, E.,et al. Contrasting aerosol refractive index and hygroscopicity in the inflow and outflow of deep convective storms: Analysis of airborne data from DC3[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(8). |
APA | Sorooshian, Armin.,Shingler, T..,Crosbie, E..,Barth, M. C..,Homeyer, C. R..,...&Fried, A..(2017).Contrasting aerosol refractive index and hygroscopicity in the inflow and outflow of deep convective storms: Analysis of airborne data from DC3.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(8). |
MLA | Sorooshian, Armin,et al."Contrasting aerosol refractive index and hygroscopicity in the inflow and outflow of deep convective storms: Analysis of airborne data from DC3".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.8(2017). |
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