The research results on the effectiveness of using data on solar flares and earthquakes to predict the infrasound wave envelope are presented. The resulting SARIMAX model, enhanced with the aforementioned external factors, exhibits a 30% reduction in mean squared error and a 29% increase in the coefficient of determination compared to the previously presented ARIMA model. Additionally, a significant achievement of the new approach, compared to previous ones, is the successful reproduction of the sharp intensity drop in the envelope during the August–September–October period. The proposed approach significantly improves the detection process of aperiodic planetary-scale events, thereby enhancing its practical value.
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