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Detailed Reference Information |
Ding, P. and Randall, D.A. (1998). A cumulus parameterization with multiple cloud base levels. Journal of Geophysical Research 103: doi: 10.1029/98JD00346. issn: 0148-0227. |
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We have generalized the Arakawa-Schubert cumulus parameterization to allow multiple cloud-base levels. A spectrum of cloud-top levels is allowed for each cloud-base level. We use a linear (rather than exponential) mass flux profile, because this greatly simplifies the determination of the entrainment rate and reduces the computational requirements of the parameterization. Cloud-top entrainment is included. The linear mass flux profile and the multiple cloud bases are separately tested in a general circulation model. Results show that the linear mass flux profile tends to lead to smoother precipitation distribution with a decrease in the depth and intensity of deep convection and that cumuli with cloud bases above the boundary layer tend to occur at night over land. ¿ 1998 American Geophysical Union |
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Abstract |
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Keywords
Meteorology and Atmospheric Dynamics, Convective processes, Meteorology and Atmospheric Dynamics, General circulation, Meteorology and Atmospheric Dynamics, Numerical modeling and data assimilation |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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