globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2015JD024570
论文题名:
Convective transport and scavenging of peroxides by thunderstorms observed over the central U.S. during DC3
作者: Barth M.C.; Bela M.M.; Fried A.; Wennberg P.O.; Crounse J.D.; St Clair J.M.; Blake N.J.; Blake D.R.; Homeyer C.R.; Brune W.H.; Zhang L.; Mao J.; Ren X.; Ryerson T.B.; Pollack I.B.; Peischl J.; Cohen R.C.; Nault B.A.; Huey L.G.; Liu X.; Cantrell C.A.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2016
卷: 121, 期:8
起始页码: 4272
结束页码: 4295
语种: 英语
英文关键词: scavenging of peroxides ; thunderstorms and chemistry
Scopus关键词: atmospheric chemistry ; atmospheric convection ; climate modeling ; estimation method ; hydrogen peroxide ; lightning ; nitric oxide ; scavenging (chemistry) ; thermodynamics ; thunderstorm ; trace gas ; uncertainty analysis ; Colorado ; Oklahoma [United States] ; United States
英文摘要: One of the objectives of the Deep Convective Clouds and Chemistry (DC3) field experiment was to determine the scavenging of soluble trace gases by thunderstorms. We present an analysis of scavenging of hydrogen peroxide (H2O2) and methyl hydrogen peroxide (CH3OOH) from six DC3 cases that occurred in Oklahoma and northeast Colorado. Estimates of H2O2 scavenging efficiencies are comparable to previous studies ranging from 79 to 97% with relative uncertainties of 5-25%. CH3OOH scavenging efficiencies ranged from 12 to 84% with relative uncertainties of 18-558%. The wide range of CH3OOH scavenging efficiencies is surprising, as previous studies suggested that CH3OOH scavenging efficiencies would be <10%. Cloud chemistry model simulations of one DC3 storm produced CH3OOH scavenging efficiencies of 26-61% depending on the ice retention factor of CH3OOH during cloud drop freezing, suggesting ice physics impacts CH3OOH scavenging. The highest CH3OOH scavenging efficiencies occurred in two severe thunderstorms, but there is no obvious correlation between the CH3OOH scavenging efficiency and the storm thermodynamic environment. We found a moderate correlation between the estimated entrainment rates and CH3OOH scavenging efficiencies. Changes in gas-phase chemistry due to lightning production of nitric oxide and aqueous-phase chemistry have little effect on CH3OOH scavenging efficiencies. To determine why CH3OOH can be substantially removed from storms, future studies should examine effects of entrainment rate, retention of CH3OOH in frozen cloud particles during drop freezing, and lightning-NOx production. ©2016. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62895
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Atmospheric Chemistry Observations and Modeling Laboratory, Mesoscale and Microscale Meteorology Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Department of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, United States; Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States; Institute for Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, United States; Division of Geology and Planetary Sciences, California Institute of Technology, Pasadena, CA, United States; Joint Center for Earth Systems Technology, University of Maryland, Baltimore County, Goddard Space Flight Center, Greenbelt, MD, United States; Department of Chemistry, University of California, Irvine, CA, United States; School of Meteorology, University of Oklahoma, Norman, OK, United States; Department of Meteorology, Pennsylvania State University, University Park, PA, United States; Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ, United States; Geophysical Fluid Dynamics Laboratory, NOAA, Princeton, NJ, United States; NOAA-Air Resources Laboratory, College Park, MD, United States; Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO, United States; Atmospheric Sciences Department, Colorado State University, Fort Collins, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; University of California, Berkeley, CA, United States; Department of Chemistry and Biochemistry, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Georgia Institute of Technology, Atlanta, GA, United States

Recommended Citation:
Barth M.C.,Bela M.M.,Fried A.,et al. Convective transport and scavenging of peroxides by thunderstorms observed over the central U.S. during DC3[J]. Journal of Geophysical Research: Atmospheres,2016-01-01,121(8)
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