Universität zu Köln

McMichael, Lucas A., Yang, Fan ORCID: 0000-0001-8866-6664, Marke, Tobias ORCID: 0000-0001-7804-9056, Loehnert, Ulrich, Mechem, David B., Vogelmann, Andrew M., Sanchez, Kevin ORCID: 0000-0003-4456-0918, Tuononen, Minttu and Schween, Jan H. (2020). Characterizing Subsiding Shells in Shallow Cumulus Using Doppler Lidar and Large-Eddy Simulation. Geophys. Res. Lett., 47 (18). WASHINGTON: AMER GEOPHYSICAL UNION. ISSN 1944-8007

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Abstract

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 Julich ObservatorY for Cloud Evolution in western Germany. Doppler lidar indicates that the vertical subsiding shell extent is asymmetric, while shell width is typically similar to 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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code McMichael, Lucas A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yang, Fan UNSPECIFIED orcid.org/0000-0001-8866-6664 UNSPECIFIED Marke, Tobias UNSPECIFIED orcid.org/0000-0001-7804-9056 UNSPECIFIED Loehnert, Ulrich UNSPECIFIED UNSPECIFIED UNSPECIFIED Mechem, David B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Vogelmann, Andrew M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sanchez, Kevin UNSPECIFIED orcid.org/0000-0003-4456-0918 UNSPECIFIED Tuononen, Minttu UNSPECIFIED UNSPECIFIED UNSPECIFIED Schween, Jan H. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-318114
DOI:	10.1029/2020GL089699
Journal or Publication Title:	Geophys. Res. Lett.
Volume:	47
Number:	18
Date:	2020
Publisher:	AMER GEOPHYSICAL UNION
Place of Publication:	WASHINGTON
ISSN:	1944-8007
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CLIMATE MODELS; CLOUDS; SPREAD; SIZE Multiple languages Geosciences, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/31811