The plot shows the monthly mean sea level without the regular seasonal fluctuations due to coastal ocean temperatures,
salinities, winds, atmospheric pressures, and ocean currents. The long-term linear trend is also shown, including its 95% confidence
interval. The plotted values are relative to the
Revised Local Reference (RLR) datum as established by the
Permanent Service for Mean Sea Level (PSMSL). The calculated trends for all stations are available as a
table in millimeters/year and in feet/century (0.3 meters = 1 foot).
If present, solid vertical lines indicate times of any major earthquakes in the vicinity of the station and dashed vertical lines bracket any periods of questionable data or datum shifts. Source data and additional metadata are noted below the plot.