Evaluation of Heavy Rainfall Model Forecasts over the Korean Peninsula Using Different Physical Parameterization Schemes and Horizontal Resolution |
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| Authors: | Jeong-Gyun PARK and Dong-Kyou LEE |
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| Affiliation: | Atmospheric Sciences Program, School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea,Atmospheric Sciences Program, School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea |
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| Abstract: | In this study, the accuracy of a Pennsylvania State University-National Center for Atmospheric Research mesoscale model (PSU/NCAR MM5) for predicting heavy summer precipitation over the Korean Peninsula was investigated. A total of 1800 simulations were performed using this model for 30 heavy rainfall events employing four cumulus parameterization schemes (CPS), two grid-scale resolvable precipitation schemes (GRS), and two planetary boundary layer (PBL) schemes in three model resolutions (90 km, 30 km, and 10 km). The heavy rainfall events were mesoscale convective systems developed under the influence of mid-latitude baroclinic systems with low-level moisture transport from the ocean. |
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| Keywords: | heavy rainfall mesoscale convection mesoscale model evaluation convective parameterization |
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