[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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