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Prediction & Predictability

Life Cycles of Precipitating Weather Systems

Mesoscale Data Assimilation

Weather Research & Forecasting

Deep Convective Cloud Systems

Boundary Layers & Turbulence

Surface Atmosphere Interactions

Chemistry, Aerosols & Dynamics Interactions

Ice Research

Wildfire Research

NCAR Strategic Initiatives

Weather Research & Forecasting Model

 

 

 

 

 

 

 

 

Research Topics Include: WRF Model numerics and dynamic cores, WRF computational framework, WRF model physics, WRF idealized and case-study testing, WRF experimental real-time forecasting, WRF model data assimilation, WRF community support, Developmental Testbed Center and testing for WRF operational implementation, and MM5 development and community support

Related Website: WRF Model Website
Related Website: MM5 Model Website

MMM collaborates on two mesoscale weather models: WRF and MM5. For more information on these models, read below or visit the websites listed above.

WRF Model: The Weather Research and Forecast (WRF) Model is a collaborative effort among NCAR, NCEP, FSL, CAPS, AFWA, and a number of university scientists. With this model, researchers seek to improve the forecast accuracy of significant weather features across scales ranging from cloud to synoptic, with priority emphasis on horizontal grids of 1-10 kilometers. The model incorporates advanced numerics and data assimilation techniques, multiple relocatable nesting capability, improved physics and treatment of complex terrain. These advances will help enhance the ability to simulate convection and mesoscale precipitation systems, including precipitation systems in mountainous regions. The model should be well suited for a range of applications, from idealized research to operational forecasting, and will have flexibility to accommodate future enhancements.

The WRF Model has the benefits of providing a more direct path for research advancements to feed into operational forecast models, and an easier transition for personnel moving between university research and the operational modeling and forecast centers.

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MM5 Model: The PSU/NCAR mesoscale model (known as MM5) is a limited-area, nonhydrostatic, terrain-following sigma-coordinate model designed to simulate or predict mesoscale atmospheric circulation. The model is supported by several pre- and post-processing programs, which are referred to collectively as the MM5 modeling system. The MM5 modeling system software is mostly written in Fortran, and has been developed at Penn State and NCAR as a community mesoscale model with contributions from users worldwide.

The MM5 modeling system software is freely provided and supported by the Mesoscale Prediction Group in the Mesoscale and Microscale Meteorology Division, NCAR.

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Research Highlights (top)

NCAR Strategic Initiative: WRF ESMF Software Framework Development

WRF Real-time forecast

WRF Working Groups (Development, Numerics, Data Assimilation, Atmospheric Chemistry, and more)

WRF Model website

MM5 Model website

Polar MM5

 

 

 

 

 

 

 

 

 

People


Cindy Bruyere
Jimy Dudhia
Dave Gill
Joe Klemp
Bill Kuo
John Michalakes
Jordan Powers
Bill Skamarock
Piotr Smolarkiewicz
Wei Wang

Research Highlights