[Grad-postdoc-assn] ASP Seminar tomorrow (Wed.)
Brian Tang
btang at ucar.edu
Tue Nov 29 12:07:47 MST 2011
George Bryan
NCAR/NESL/MMM
FL2-1022 at 11 am (lunch with speaker will follow seminar in FL2-1003)
A primer on cloud-resolving modeling
"Cloud-resolving modeling" is the term typically used to describe
numerical model simulations that do not have a convection
parameterization. (Other terms in use today include
"cloud-system-resolving modeling" and "convection-permitting modeling.")
In this approach, deep precipitating convection is represented
explicitly on the model grid, and the entire lifecycle of clouds (from
initiation to demise) is allowed to evolve freely based on the model’s
equations. Cloud-resolving modeling is now used widely in the
atmospheric sciences, from real-time forecasting, to dynamics research,
to chemical transport modeling, and most recently to climate research.
In the first part of this talk I will review the basic requirements of
cloud-resolving modeling, such as the need for a non-hydrostatic
dynamical solver and sufficient representation of cloud microphysical
processes. The second part of this talk will address the shortcomings
of modern-day cloud-resolving modeling, including the impacts of limited
resolution and uncertainties in subgrid-scale processes.
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Brian Hong-An Tang
Postdoctoral Fellow
National Center for Atmospheric Research
Mesoscale & Microscale Meteorology Division
Foothills Lab 3 - Rm. 3075
Office: 303-497-8140
Cell: 339-203-1503
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