The Grey Process Precipitation Forecast of the Disaster Change

Based on the method of the Non-adjacent average value creation,the process of the precipitation sudden change values of Suzhou city from June to August (1953—1994) and the method of the grey incomplete difference recognition, the GM (1,1) models of the grey process of the precipitation sudden change can be established to forecast the years of the waterlogging, normal, drought of Suzhou and the values of the precipitation quantity in future.

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