Figure S1 – Scatter plots based on the BEWARE data set (Pearson et al., 2017) showing values of (a) runup R2%, (b) incident wave height Hs,inc, (c) wave setup η and (d) infragravity wave height Hs,inf, as a function of width of reef platform wreef and still water depth over the reef platform hreef. All parameters are normalized by the significant deep-water wave height H0. Both bubble size and colour are proportional to the value of the parameter shown in the title of the subplots. Only a subset of the BEWARE data set is plotted, with the following parameters fixed: wave steepness H0/L0 = 0.025 (and peak wave period Tp = 6–20 s), fore reef slope tanβreef = 0.1, bed roughness cf = 0.05, beach slope tanβbeach = 0.1. The following parameters are variable in the data set: hreef (0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 m), H0 (1, 2, 3, 4, 5 m) and wreef (0, 50, 100, 150, 200, 250, 300, 350, 400, 500, 1000, 1500 m). The thick grey line represents the range of conditions modelled in the present paper (H0 = 3 m, hreef is 2–4.5 m and wreef = 200 m; thus, hreef/H0 = 0.67–1.5 and wreef/H0 = 67). [p_beware_axes]