S117 A WRF Sensitivity Study on Optimizing Precipitation Forecasting in an Operational Context

Sunday, 6 January 2019
Hall 4 (Phoenix Convention Center - West and North Buildings)
Richard Garmong, University of Georgia, Athens, GA; and P. Miller and J. A. Knox

This WRF sensitivity study looks to determine what the most accurate microphysics and planetary boundary layer parameterizations are for Georgia during a tropical influenced flooding event in a convective resolving model. Accuracy is determined by using the Fractional Skill Score, Heidke Skill Score, and Frequency Bias. This study is limited in scope due to the domain size being small and only being based upon one case. The Eta (Ferrier) Microphysics model is the most accurate microphysics parameterization for this case and had the second best time accuracy score. The Mellor-Yamada-Janjic scheme was the most accurate PBL scheme. However, the Yano et al. Planetary Boundary Layer scheme had a better time accuracy score.
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