Table 1 Weights assigned to (a) groundwater recharge, (b) extreme sea-levels, and (c) coastal erosion, which combined result in the suitability (low, medium, high) of eroding sandy shores for a growth of fresh groundwater resources by large beach nourishments.

From: Global potential for the growth of fresh groundwater resources with large beach nourishments

Suitability Class

a: Groundwater recharge

b: Extreme sea-level

c: Coastal erosion

High (≥3)

>100 mm yr−1 (+2)

<1 m MSL (+2)

−1 to −0.5 m yr−1 (+1)

Medium (−3 to 3)

20–100 mm yr−1 (0)

1–3 m MSL (0)

−3 to −1 m yr−1 (0)

Low (≤−3)

<20 mm yr−1 (−2)

>3 m MSL (−2)

<−3 m yr−1 (−1)