CALIBRATION METHOD AND SYSTEM TO IMPROVE ACCURACY OF SHORT-TERM PRECIPITATION PREDICTION

摘要

According to on embodiment of the present invention, a calibration method to improve accuracy of short-term precipitation prediction includes the steps of: extracting past data of an ultrashort-term prediction model, a storm-scale prediction model, and an automatic weather system (AWS) as data having an identical grid and identical resolution; calculating a weight of the data of the ultrashort-term prediction model and the data of the storm-scale prediction model based on similarity between the extracted data of the ultrashort-term prediction model and the extracted data of the AWS and similarity between the extracted data of the storm-scale prediction model and the extracted data of the AWS; calculating a calibration ratio according to a prediction time between the data of the ultrashort-term prediction model and the data of the storm-scale prediction model to perform calibration according to the prediction time; and blending future prediction data of the ultrashort-term prediction model and the storm-scale prediction model with the calculated weight and the calibration ratio according to the prediction time.