Table 2.

Definition of classes and ranking values for each variable included in the index of exposure

Variables	Very low (1)	Low (2)	Moderate (3)	High (4)	Very high (5)
Relief (m)	12.00–233	8.00–12.00	4.00–8.00	2.00–4.00	0–2.00
Wave exposurea	0–0.75	0.75–3.00	3.00–18.70	18.75–48.00	48.01–219.77
Wind exposure	1st quantile	2nd quantile	3rd quantile	4th quantile	5th quantile
Surge potential	1st quantile	2nd quantile	3rd quantile	4th quantile	5th quantile
Natural habitats	Coral reef; mangrove	-	-	Seagrass	No habitat
Shoreline change rates (m/yr)	> + 2	+ 1 to + 2	−1 to +1	−2 to −1	< −2

^aThe maximum of the weighted average wave power of swells and seas as calculated by the InVEST model