Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD028271 |
Effects of Scavenging, Entrainment, and Aqueous Chemistry on Peroxides and Formaldehyde in Deep Convective Outflow Over the Central and Southeast United States | |
Bela, Megan M.1,2,3,4; Barth, Mary C.5; Toon, Owen Brian1,2; Fried, Alan6; Ziegler, Conrad7; Cummings, Kristin A.8,9; Li, Yunyao8; Pickering, Kenneth E.8,10; Homeyer, Cameron R.11; Morrison, Hugh5; Yang, Qing12; Mecikalski, Retha M.13; Carey, Larry13; Biggerstaff, Michael, I11; Betten, Daniel P.11; Alford, A. Addison11 | |
2018-07-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:14页码:7594-7614 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Deep convective transport of gaseous precursors to ozone (O-3) and aerosols to the upper troposphere is affected by liquid phase and mixed-phase scavenging, entrainment of free tropospheric air and aqueous chemistry. The contributions of these processes are examined using aircraft measurements obtained in storm inflow and outflow during the 2012 Deep Convective Clouds and Chemistry (DC3) experiment combined with high-resolution (dx <= 3 km) WRF-Chem simulations of a severe storm, an air mass storm, and a mesoscale convective system (MCS). The simulation results for the MCS suggest that formaldehyde (CH2O) is not retained in ice when cloud water freezes, in agreement with previous studies of the severe storm. By analyzing WRF-Chem trajectories, the effects of scavenging, entrainment, and aqueous chemistry on outflow mixing ratios of CH2O, methyl hydroperoxide (CH3OOH), and hydrogen peroxide (H2O2) are quantified. Liquid phase microphysical scavenging was the dominant process reducing CH2O and H2O2 outflow mixing ratios in all three storms. Aqueous chemistry did not significantly affect outflow mixing ratios of all three species. In the severe storm and MCS, the higher than expected reductions in CH3OOH mixing ratios in the storm cores were primarily due to entrainment of low-background CH3OOH. In the air mass storm, lower CH3OOH and H2O2 scavenging efficiencies (SEs) than in the MCS were partly due to entrainment of higher background CH3OOH and H2O2. Overestimated rain and hail production in WRF-Chem reduces the confidence in ice retention fraction values determined for the peroxides and CH2O. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000441965400032 |
WOS关键词 | DIABATIC LAGRANGIAN TECHNIQUE ; SIMULATED SQUALL LINE ; HYDROGEN-PEROXIDE ; CLOUD CHEMISTRY ; RATE CONSTANTS ; TROPOSPHERIC OZONE ; HYDROXYL RADICALS ; MOIST CONVECTION ; SULFUR-DIOXIDE ; WIND-TUNNEL |
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/32478 |
专题 | 气候变化 |
作者单位 | 1.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA; 2.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA; 3.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 4.NOAA, Chem Sci Div, Earth Syst Res Lab, Boulder, CO 80305 USA; 5.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 6.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 7.NOAA, Natl Severe Storms Lab, Norman, OK 73069 USA; 8.Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA; 9.NASA, Kennedy Space Ctr, Merritt Isl, FL USA; 10.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 11.Univ Oklahoma, Sch Meteorol, Norman, OK 73019 USA; 12.Pacific Northwest Natl Lab, Richland, WA USA; 13.Univ Alabama, Dept Atmospher Sci, Huntsville, AL 35899 USA |
推荐引用方式 GB/T 7714 | Bela, Megan M.,Barth, Mary C.,Toon, Owen Brian,et al. Effects of Scavenging, Entrainment, and Aqueous Chemistry on Peroxides and Formaldehyde in Deep Convective Outflow Over the Central and Southeast United States[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(14):7594-7614. |
APA | Bela, Megan M..,Barth, Mary C..,Toon, Owen Brian.,Fried, Alan.,Ziegler, Conrad.,...&Alford, A. Addison.(2018).Effects of Scavenging, Entrainment, and Aqueous Chemistry on Peroxides and Formaldehyde in Deep Convective Outflow Over the Central and Southeast United States.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(14),7594-7614. |
MLA | Bela, Megan M.,et al."Effects of Scavenging, Entrainment, and Aqueous Chemistry on Peroxides and Formaldehyde in Deep Convective Outflow Over the Central and Southeast United States".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.14(2018):7594-7614. |
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