Fig. 5: Statistical Thresholds for Volume-based Debris Flow Type Differentiation.
From: Predicting debris flow pathways using volume-based thresholds for effective risk assessment
a Box Plot of SC and SH debris flow volumes with threshold line indicates the proposed division between SC and SH types, helping visualise the boundary based on typical volumes. b Histogram of SC and SH debris flow volumes with threshold and confidence interval. The histogram overlays the probability density functions (PDF) of SC and SH debris flow volumes. The median threshold of 7072 cu. m is marked with a vertical dotted line, while the shaded area represents the 95% confidence interval (3800.35 to 32322 cu. m). c Box Plot of Bootstrapped Thresholds with 95% Confidence Interval. The box plot represents the distribution of 20000 bootstrapped threshold values, with the median threshold at 7072 cu. m and a 95% confidence interval. d Classification confidence levels for SC and SH debris flow volumes. The line plot shows the classification confidence for SC and SH types as debris flow volume varies. Confidence levels decrease as volumes approach the threshold (7072 cu. m), where classification is less certain.
