<正> On July 20-21, 1998, a torrential rain with 24-hour rainfall of 286mm occurred in Wuhan, Hubei Province of China. In this study, a three-dimensional variational data assimilation system developed at the Fifth-Generation Pennsylvania State University/National Center for Atmospheric Research Mesoscale Model ( MM5 ) along with conventional rawinsonde sounding and surface observation is used for modeling the heavy rain. It successfully incorporates observational data of temperature, humidity and wind, and provides an optimal analysis being in favor of the formation of heavy rain. The 24-hour rainfall predicted by the new scheme is 109 mm rather tban 2.5 mm forecasted by control experiment. Furthermore, the forecasted accuracy of location and time-variation of hourly rainfall reproduced by this model is also improved.
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机译:Numerical Assessing Experiments on the Individual Component Impact of the Meteorological Observation Network on the 'July 2000' Torrential Rain in Beijing
机译:Development of the Three-Dimensional Variational Data Assimilation System for the Republic of Korea Air Force Operational Numerical Weather Prediction System
机译:E3DVar: Coupling an ensemble kalman filter with three-dimensional variational data assimilation in a limited-area weather prediction model and comparison to E4DVar