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The Experiment of Classification Rainfall forecast in Hubei During Mei-yu Period

Li Caiyuan(Wuhan Central Meteorological Observatory,Hubei Province 430074)  
h rainfall forecast has been studied in 5 feature regions of Hubei and Wuhan station during mei-yu period. It was divided into 3 grades (light rain.moderate rain and heavyrain). Based on the grey forecast model,the precipitation predictand's consensus of vary numerical model (Beijing LAFS.Beijing B.Japan etc. )was made for the station;Using methodof regression analysis,rainfall predictions was given with LAFS data. Semi-operational prediction was conducted in 1993 and 1994. Better forecasting results were achieved.
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