Massive computer programs called numerical weather prediction models start with current weather observations and attempt to predict future weather. Through physics and dynamics, complex computer programs mathematically describe the atmosphere's behavior to provide forecasts of temperature, pressure, moisture, rainfall and winds. NSSL scientists are currently testing new parameterization schemes and including additional physical processes in the models. Other research includes development of new forecast models and ensemble forecasting techniques.

Real-time modified Eta Model

Real-time runs of the National Weather Service's operational Eta Model are being produced twice a day at NSSL. We have modified this model with the Kain-Fritsch convective parameterization scheme and 4th order horizontal diffusion in order to evaluate these potential improvements.

Weather Research and Forecasting Model (WRF)

This model is a collaborative effort between several universities, UCAR/NCAR, and the operational modeling centers at the Air Force and National Weather Service. Plans are for this model to become the next generation numerical weather prediction model. NSSL will begin running this model in late September.

 

 

Updated September 3, 2003