Toward Improving Microphysical Parameterizations of Conversion Processes

Jerry M. Straka School of Meteorology, University of Oklahoma, Norman, Oklahoma

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Erik N. Rasmussen National Severe Storms Laboratory, Norman, Oklahoma

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Abstract

Prognostic equations are proposed for use in gridpoint models for the purpose of providing Lagrangian information without the need for computing Lagrangian trajectories. The information provided by the proposed methods might lead to improved representations of microphysical conversion processes. For example, the proposed methods could help improve the timing and location of the onset of precipitation in cloud models.

Corresponding author address: Dr. Jerry M. Straka, School of Meteorology, University of Oklahoma, Energy Center, 100 East Boyd St., Norman, OK 73019.

Abstract

Prognostic equations are proposed for use in gridpoint models for the purpose of providing Lagrangian information without the need for computing Lagrangian trajectories. The information provided by the proposed methods might lead to improved representations of microphysical conversion processes. For example, the proposed methods could help improve the timing and location of the onset of precipitation in cloud models.

Corresponding author address: Dr. Jerry M. Straka, School of Meteorology, University of Oklahoma, Energy Center, 100 East Boyd St., Norman, OK 73019.

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