HRET8.1, compressed -- use for SSH prediction or graphics.

HRET8.1, un-compressed -- use for tidal current prediction.

HRET8.1, modal decomposition -- SSH for modes 1, 2, and 3.

Distance to the closest shoreline -- based on GEBCO 2008 grid.

SSALTO/DUACS multisatellite sea level anomaly -- filtered to remove tides (based on Mercator Ocean release from 2018-04-11).