Hydropower station basin areal rainfall meteorology forecast method based on GIS subarea

The invention discloses a hydropower station basin rainfall meteorology forecast method based on a GIS subarea. Based on meteorological observatory forecast products and value forecast products, areal rainfall of each basin within a presidial area is forecasted, integration of computer systems is realized, automatic data acquisition is realized, unified forecast of an electric network and all the hydropower stations in the whole area is carried out, pre-forecast precision is high, a data access function is realized through database linkage, through the web network, website release and browsing of meteorology information are realized, scientific basis is provided for electric production and electric scheduling, and the method has excellent application prospects.