Figure 2
From: Rising sea levels and the increase of shoreline wave energy at American Samoa

Observations from 2017 field deployment. Time series from sensor A (nearshore) and C (reef face) of: (a) 30-min average water level (MSL); (b) SS (0.04–0.3 Hz) significant wave height; (c) LF (0.001–0.04 Hz) significant wave height; (d) mean period (and peak period for sensor C only, shown in symbols).