气候变化领域集成服务门户(CCPortal): Characterizing Subsiding Shells in Shallow Cumulus Using Doppler Lidar and Large-Eddy Simulation

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DOI	10.1029/2020GL089699
	Characterizing Subsiding Shells in Shallow Cumulus Using Doppler Lidar and Large-Eddy Simulation
	McMichael L.A.; Yang F.; Marke T.; Löhnert U.; Mechem D.B.; Vogelmann A.M.; Sanchez K.; Tuononen M.; Schween J.H.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:18
英文摘要	The existence of subsiding shells on the periphery of shallow cumulus clouds has major implications concerning the parameterization of shallow convection, with the mass exchange between the shell and cloudy air representing a significant deviation from the commonly used bulk-plume parameterization. We examine the structure and frequency of subsiding shells in shallow cumulus convection using Doppler lidars at the Atmospheric Radiation Measurement Southern Great Plains facility in the central United States and at the Jülich ObservatorY for Cloud Evolution in western Germany. Doppler lidar indicates that the vertical subsiding shell extent is asymmetric, while shell width is typically ~100 m. Large-eddy simulation can reasonably simulate the observed shell structure using a grid spacing of 10 m and suggests that much of the observed asymmetry is not a result of transient cloud evolution. ©2020. The Authors.
英文关键词	Atmospheric radiation; Atmospheric structure; Clouds; Doppler effect; Optical radar; Shells (structures); Atmospheric radiation measurements; Doppler lidars; Shallow convection; Shallow cumulus; Shallow cumulus clouds; Shallow cumulus convection; Shell structure; Southern great plains; Large eddy simulation; atmospheric convection; convection; cumulus; Doppler lidar; large eddy simulation; mass transfer; parameterization; shallow water; Germany; Great Plains; United States
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169751
作者单位	Department of Geography and Atmospheric Science, University of Kansas, Lawrence, KS, United States; Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, NY, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Boulder, CO, United States; Chemical Sciences Laboratory, NOAA/Earth System Research Laboratory, Boulder, CO, United States; Institute for Geophysics and Meteorology, University of Cologne, Cologne, Germany; Universities Space Research Association, Columbia, MD, United States; NASA Langley Research Center, Hampton, VA, United States; Finnish Meteorological Institute, Helsinki, Finland; Vaisala Oyj, Vantaa, Finland
推荐引用方式 GB/T 7714	McMichael L.A.,Yang F.,Marke T.,et al. Characterizing Subsiding Shells in Shallow Cumulus Using Doppler Lidar and Large-Eddy Simulation[J],2020,47(18).
APA	McMichael L.A..,Yang F..,Marke T..,Löhnert U..,Mechem D.B..,...&Schween J.H..(2020).Characterizing Subsiding Shells in Shallow Cumulus Using Doppler Lidar and Large-Eddy Simulation.Geophysical Research Letters,47(18).
MLA	McMichael L.A.,et al."Characterizing Subsiding Shells in Shallow Cumulus Using Doppler Lidar and Large-Eddy Simulation".Geophysical Research Letters 47.18(2020).