Fig. 4: Relationship between seasonal ACE and direct fatalities.
From: Continental United States direct Atlantic tropical cyclone fatalities: 1963–2024
a Fitted response and 95% CI band of non-zero fatality counts from a negative binomial model, and b Box and whisker analysis of the approximate top 25% (15 years), middle 50% (32 years) and bottom 25% (15 years) of seasonal ACE years and corresponding fatalities between 1963 and 2024. The horizontal line denotes the median value, the box denotes the range from the first quartile (Q1) to the third quartile (Q3) (e.g., the interquartile range (IQR)), while the whiskers are defined to span from Q1 − (1.5* IQR) to Q3 + (1.5 * IQR).
