气候变化领域集成服务门户(CCPortal): Vertical Transport, Entrainment, and Scavenging Processes Affecting Trace Gases in a Modeled and Observed SEAC4RS Case Study

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DOI	10.1029/2019JD031957
	Vertical Transport, Entrainment, and Scavenging Processes Affecting Trace Gases in a Modeled and Observed SEAC4RS Case Study
	Cuchiara G.C.; Fried A.; Barth M.C.; Bela M.; Homeyer C.R.; Gaubert B.; Walega J.; Weibring P.; Richter D.; Wennberg P.; Crounse J.; Kim M.; Diskin G.; Hanisco T.F.; Wolfe G.M.; Beyersdorf A.; Peischl J.; Pollack I.B.; St. Clair J.M.; Woods S.; Tanelli S.; Bui T.V.; Dean-Day J.; Huey L.G.; Heath N.
发表日期	2020
ISSN	2169897X
卷号	125 期号:11
英文摘要	The convectively driven transport of soluble trace gases from the lower to the upper troposphere can occur on timescales of less than an hour, and recent studies suggest that microphysical scavenging is the dominant removal process of tropospheric ozone precursors. We examine the processes responsible for vertical transport, entrainment, and scavenging of soluble ozone precursors (formaldehyde and peroxides) for midlatitude convective storms sampled on 2 September 2013 during the Studies of Emissions, Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC4RS) study. Cloud-resolving simulations using the Weather Research and Forecasting with Chemistry model combined with aircraft measurements were performed to understand the effect of entrainment, scavenging efficiency (SE), and ice physics processes on these trace gases. Analysis of the observations revealed that the SEs of formaldehyde (43–53%) and hydrogen peroxide (~80–90%) were consistent between SEAC4RS storms and the severe convection observed during the Deep Convective Clouds and Chemistry Experiment (DC3) campaign. However, methyl hydrogen peroxide SE was generally smaller in the SEAC4RS storms (4%–27%) compared to DC3 convection. Predicted ice retention factors exhibit different values for some species compared to DC3, and we attribute these differences to variations in net precipitation production. The analyses show that much larger production of precipitation between condensation and freezing levels for DC3 severe convection compared to smaller SEAC4RS storms is largely responsible for the lower amount of soluble gases transported to colder temperatures, reducing the amount of soluble gases which eventually interact with cloud ice particles. ©2020. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185971
作者单位	Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, United States; Atmospheric Chemistry Observations and Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Chemical Sciences Laboratory, Earth System Research Laboratory, NOAA, Boulder, CO, United States; School of Meteorology, University of Oklahoma, Oklahoma, OK, United States; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, United States; Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, CA, United States; Atmospheric Composition, NASA Langley Research Center, Hampton, VA, United States; Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Joint Center for Earth Systems Technology, University of Maryland, Baltimore County,...
推荐引用方式 GB/T 7714	Cuchiara G.C.,Fried A.,Barth M.C.,et al. Vertical Transport, Entrainment, and Scavenging Processes Affecting Trace Gases in a Modeled and Observed SEAC4RS Case Study[J],2020,125(11).
APA	Cuchiara G.C..,Fried A..,Barth M.C..,Bela M..,Homeyer C.R..,...&Heath N..(2020).Vertical Transport, Entrainment, and Scavenging Processes Affecting Trace Gases in a Modeled and Observed SEAC4RS Case Study.Journal of Geophysical Research: Atmospheres,125(11).
MLA	Cuchiara G.C.,et al."Vertical Transport, Entrainment, and Scavenging Processes Affecting Trace Gases in a Modeled and Observed SEAC4RS Case Study".Journal of Geophysical Research: Atmospheres 125.11(2020).