Experiments of Initial Values Effect on Numerical Weather Forecast for Heavy Rain

In basis of statistical interpolation, the objective analysis initial values from different data sources and horizontal resolutions have been obtained by using the two heavy rain processes during 7―9 November of 1990 and 27―29 July 1991. The influence of these initial values on the 48-hour heavy rain forecast in the eastern China has been discussed by using the numerical simulation of triple nested grid model