Macroscopic impacts of cloud and precipitation processes in shallow convection

AMS Citation:
Grabowski, W. W., J. Slawinska, and A. Wyszogrodzki, 2011: Macroscopic impacts of cloud and precipitation processes in shallow convection. Acta Geophysica, 59, 1184-1204, doi:10.2478/s11600-011-0038-9.
Resource Type:article
Title:Macroscopic impacts of cloud and precipitation processes in shallow convection
Abstract: This paper presents application of the EULAG model combined with a sophisticated double-moment warm-rain microphysics scheme to the model intercomparison case based on RICO (Rain in Cumulus over Ocean) field observations. As the simulations progress, the cloud field gradually deepens and a relatively sharp temperature and moisture inversions develop in the lower troposphere. Two contrasting aerosol environments are considered, referred to as pristine and polluted, together with two contrasting subgridscale mixing scenarios, the homogeneous and the extremely inhomogeneous mixing. Pristine and polluted environments feature mean cloud droplet concentrations around 40 and 150 mg⁻¹, respectively, and large differences in the rain characteristics. Various measures are used to contrast evolution of macroscopic cloud field characteristics, such as the mean cloud fraction, the mean cloud width, or the height of the center of mass of the cloud field, among others. Macroscopic characteristics appear similar regardless of the aerosol characteristics or the homogeneity of the subgrid-scale mixing.
Subject(s):Shallow convection, Homogeneity of subgrid-scale mixing, CNN activation, Cloud microphysics
Peer Review:Refereed
Copyright Information:Copyright 2011 Springer.
OpenSky citable URL: ark:/85065/d7t72j5m
Publisher's Version: 10.2478/s11600-011-0038-9
  • Wojciech Grabowski - NCAR/UCAR
  • Joanna Slawinska
  • Andrzej Wyszogrodzki - NCAR/UCAR
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