Improvements and Remaining Challenges in the Parameterization of Microphysics and its Impact on Deep Convection

 Hugh Morrison
NCAR/MMM
Boulder, CO, USA

With increasing use of high resolution (convection-permitting) models for numerical weather prediction and climate simulation, microphysics has moved to the forefront in terms of physical parameterizations. This is because without the use of traditional convection parameterizations in these models, microphysics is directly coupled to the convective dynamics. An overview of current approaches for representing microphysics will be given, as well as recent efforts to improve parameterizations and some of the key remaining challenges. Impacts of microphysics on convection-permitting model simulations of deep convection will be presented, including impacts on cold pool evolution and storm structure. Particular attention will be paid to uncertainties arising from poorly-constrained process rates and parameters in the context of complex interactions between the microphysics and dynamics. Finally, new "outside-the-box" ideas and approaches for representing microphysics, representing a significant shift from traditional approaches, will be discussed.

***PLEASE NOTE THE SPECIAL DAY AND TIME***

 Monday, 25 March 2013, 10:30 AM
Refreshments 10:15 AM
NCAR-Foothills Laboratory
3450 Mitchell Lane
Bldg 2 Main Seminar Room 1022

About the presenter
Presenter(s): 
Hugh Morrison

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1022

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Date and time: 
Monday, March 25, 2013 - 10:30am