Research Interests: Predictability, weather analysis and forecasting
Dr. Mullen is
currently studying the utility of ensemble forecasts, the running of several
numerical weather prediction forecasts starting from slightly different
initial states and/or different model formulations. The results of this
work have been shown to improve the prediction of atmospheric phenomena
that traditionally have been difficult to forecast accurately such as precipitation
amount and type.
Bright, D. A. and S. L. Mullen, 2002: Short-term ensemble forecasts of precipitation during the Southwest Monsoon. Wea. Forecasting, 17, 1080-100.
Mullen, S. L., and R. Buizza, 2002: The impact of horizontal resolution and ensemble size on probabilistic precipitation forecasts by the ECMWF ensemble prediction system. Wea. Forecasting, 17, 173-191.
Bright, D. A. and S. L. Mullen, 2002: The sensitivity of the numerical simulation of the Southwest monsoon boundary layer to the choice of PBL turbulence parameterization in MM5. Wea. Forecasting, 17, 99-114.
Wandishin, M. S., S. L. Mullen, D. J. Stensrud, and H. E. Brooks, 2001: Evaluation of a short-range, multi-model ensemble system. Mon. Wea. Rev., 129, 729-747.
Mullen, S. L., and R. Buizza, 2001: Quantitative precipitation forecasts over the contiguous United States by the ECMWF ensemble prediction system. Mon. Wea. Rev., 129, 638-663.
Hamill, T. M., C. Snyder, D. P. Baumhefner, S. L. Mullen, and Z. Toth, 2000: Ensemble forecasting in the short to medium range: Report from a workshop. Bull. Amer. Meteor. Soc., 81, 2653-2664.