Articles | Volume 8, issue 12
Geosci. Model Dev., 8, 3801–3821, 2015
https://doi.org/10.5194/gmd-8-3801-2015
Geosci. Model Dev., 8, 3801–3821, 2015
https://doi.org/10.5194/gmd-8-3801-2015

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 et al.

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Cited articles

Barker, H. W., Pincus, R., and Morcrette, J.-J.: The M}onte Carlo Independent Column Approximation: Application within large-scale models, in: Proceedings of the {GCSS workshop, Kananaskis, Alberta, Canada, Am. Meteorol. Soc., 2002.
Barker, H. W., Cole, J. N. S., Morcrette, J.-J., Pincus, R., Räisänen, P., von Salzen, K., and Vaillancourt, P. A.: The Monte Carlo Independent Column Approximation: An Assessment using Several Global Atmospheric Models, Q. J. Roy. Meteor. Soc., 134, 1463–1478, 2008.
Benedict, J. J. and Randall, D. A.: Observed characteristics of the MJO relative to maximum rainfall, J. Atmos. Sci., 64, 2332–2354, 2007.
Benedict, J. J. and Randall, D. A.: Structure of the Madden-J}ulian oscillation in the superparameterized {CAM, J. Atmos. Sci., 66, 3277–3296, 2009.
Bladé, I. and Hartmann, D. L.: Tropical intraseasonal oscillations in a simple nonlinear model, J. Atmos. Sci., 50, 2922–2939, 1993.
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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.