气候变化领域集成服务门户(CCPortal): A Novel Framework to Study Trace Gas Transport in Deep Convective Clouds

CCPortal

DOI	10.1029/2019MS001931
	A Novel Framework to Study Trace Gas Transport in Deep Convective Clouds
	Bardakov R.; Riipinen I.; Krejci R.; Savre J.; Thornton J.A.; Ekman A.M.L.
发表日期	2020
ISSN	19422466
卷号	12 期号:5
英文摘要	Deep convective clouds reach the upper troposphere (8–15 km height). In addition to moisture and aerosol particles, they can bring aerosol precursor gases and other reactive trace gases from the planetary boundary layer to the cloud top. In this paper, we present a method to estimate trace gas transport based on the analysis of individual air parcel trajectories. Large eddy simulation of an idealized deep convective cloud was used to provide realistic environmental input to a parcel model. For a buoyant parcel, we found that the trace gas transport approximately follows one out of three scenarios, determined by a combination of the equilibrium vapor pressure (containing information about water-solubility and pure component saturation vapor pressure) and the enthalpy of vaporization. In one extreme, the trace gas will eventually be completely removed by precipitation. In the other extreme, there is almost no vapor condensation on hydrometeors and most of the gas is transported to the top of the cloud. The scenario in between these two extremes is also characterized by strong gas condensation, but a small fraction of the trace gas may still be transported aloft. This approach confirms previously suggested patterns of inert trace gas behavior in deep convective clouds, agrees with observational data, and allows estimating transport in analytically simple and computationally efficient way compared to explicit cloud-resolving model calculations. ©2020. The Authors.
英文关键词	aerosols; deep convection; large eddy simulation; method development; trace gas transport
语种	英语
scopus关键词	Aerosols; Atmospheric thermodynamics; Boundary layers; Clouds; Condensation; Hydrostatic pressure; Large eddy simulation; Vapor pressure; Cloud resolving model; Computationally efficient; Deep convective clouds; Enthalpy of vaporization; Observational data; Planetary boundary layers; Saturation vapor pressure; Water solubilities; Atmospheric movements; aerosol; boundary layer; condensation; convective cloud; enthalpy; gas transport; large eddy simulation; troposphere; vapor pressure
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156710
作者单位	Department of Meteorology, Stockholm University, Stockholm, Sweden; Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden; Department of Environmental Science (ACES), Stockholm University, Stockholm, Sweden; Meteorological Institute, Ludwig-Maximilians-University, Munich, Germany; Department of Atmospheric Sciences, University of Washington, Seattle, United States
推荐引用方式 GB/T 7714	Bardakov R.,Riipinen I.,Krejci R.,et al. A Novel Framework to Study Trace Gas Transport in Deep Convective Clouds[J],2020,12(5).
APA	Bardakov R.,Riipinen I.,Krejci R.,Savre J.,Thornton J.A.,&Ekman A.M.L..(2020).A Novel Framework to Study Trace Gas Transport in Deep Convective Clouds.Journal of Advances in Modeling Earth Systems,12(5).
MLA	Bardakov R.,et al."A Novel Framework to Study Trace Gas Transport in Deep Convective Clouds".Journal of Advances in Modeling Earth Systems 12.5(2020).