Analysis and Forecast of October Rainstorm in Guilin
Statistic is made regarding the October rainstorm process in Guilin during the 42 years from 1960 to 2002 by utilizing the historical synoptic chart information with a view to study the circulation characteristics of its influencing weather system and its evolution law, based on which the forecast mode indices are established according to classification, providing some reference for realtime forecast business of October rainstorm.
The paper sets up a model for forcasting population analgsis,grey system theory and statistics of Benxi population~ between 1990 and 1999.The use of this model proves that the result gained with the methods presented in the paper is nearly in agreement with the fact.