Hao-Wen Dai

Precipitation forecasting and feature correlation analysis based on the ARIMA-GM(1,1) model

This study addresses the ambiguity in defining “rainy spells” through a threshold-based approach aligned with the National Precipitation Grade Standard. A hybrid ARIMA-GM(1,1) time series forecasting model was developed to mitigate single-model limitations in handling anomalies and noise. Cross-validation determined op...