Fig. 1: Power dissipation index and sea-surface temperature anomaly.
From: Natural and anthropogenic contributions to the hurricane drought of the 1970s–1980s
a Average power dissipation index per year and per storm category for the period from 1970 to 1990 (black bars) and from 1960 to 2017 (gray bars). b Scatter plot of power dissipation index against main development region sea surface temperature anomaly (gray, R = 0.63), and 7-year cutoff low-pass filtered power dissipation index against main development region sea surface temperature anomaly (black, R = 0.68), from 1960 to 2017.
