Articles | Volume 8, issue 12
https://doi.org/10.5194/gmd-8-3801-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/gmd-8-3801-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Development and technical paper
| 
01 Dec 2015
Development and technical paper |
| 01 Dec 2015
A unified parameterization of clouds and turbulence using CLUBB and subcolumns in the Community Atmosphere Model
K. Thayer-Calder
CORRESPONDING AUTHOR
National Center for Atmospheric Research, Boulder, CO, USA
University of Wisconsin – Milwaukee, Department of Mathematical Sciences, Milwaukee, WI, USA
A. Gettelman
National Center for Atmospheric Research, Boulder, CO, USA
C. Craig
National Center for Atmospheric Research, Boulder, CO, USA
S. Goldhaber
National Center for Atmospheric Research, Boulder, CO, USA
P. A. Bogenschutz
National Center for Atmospheric Research, Boulder, CO, USA
C.-C. Chen
National Center for Atmospheric Research, Boulder, CO, USA
H. Morrison
National Center for Atmospheric Research, Boulder, CO, USA
J. Höft
University of Wisconsin – Milwaukee, Department of Mathematical Sciences, Milwaukee, WI, USA
E. Raut
University of Wisconsin – Milwaukee, Department of Mathematical Sciences, Milwaukee, WI, USA
B. M. Griffin
University of Wisconsin – Milwaukee, Department of Mathematical Sciences, Milwaukee, WI, USA
J. K. Weber
University of Wisconsin – Milwaukee, Department of Mathematical Sciences, Milwaukee, WI, USA
V. E. Larson
University of Wisconsin – Milwaukee, Department of Mathematical Sciences, Milwaukee, WI, USA
M. C. Wyant
University of Washington, Department of Atmospheric Sciences, Seattle, WA, USA
Institute for Climate and Global Change Research and School of Atmospheric Sciences, Nanjing University, Nanjing, 210093, China
Collaborative Innovation Center of Climate Change, Jiangsu Province, 210093, China
Pacific Northwest National Laboratory, Richland, WA, USA
Z. Guo
Pacific Northwest National Laboratory, Richland, WA, USA
S. J. Ghan
Pacific Northwest National Laboratory, Richland, WA, USA
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Latest update: 27 Nov 2025
Short summary
This study evaluates a unified cloud parameterization and a Monte Carlo microphysics interface that is implemented in CAM v5.3. We show mean climate and tropical variability results from global simulations. The model has a degradation in precipitation skill but improvements in shortwave cloud forcing, liquid water path, long-wave cloud forcing, precipitable water, and tropical wave simulation. We also show estimation of computational expense and sensitivity to number of subcolumns.
This study evaluates a unified cloud parameterization and a Monte Carlo microphysics interface...
