Fig. 5: Cumulative distribution functions of latent heat flux change at the transitions between concurrence and after/before-concurrence phases.

Accumulated concurrent marine heatwave (MHW) area (%) with an (a) latent heat (LH) flux change in the transition from the previous day to concurrence onset to the second concurrent day higher than a given value (W/m2); and b LH flux change in the transition from the penultimate concurrent day to the first day after concurrence end lower than a given value (W/m2). Grey lines represent individual concurrent MHWs; the black line is the corresponding mean. Boxplot represents grey lines values at crossing the vertical red line at LH change equal to 0, showing the distribution of MHW concurrent areas with a (a) positive or (b) negative LH change.