Welcome to the
Permanent Service for Mean Sea Level (PSMSL)
PSMSL is the global data bank for long term sea level
change information from tide gauges and bottom pressure recorders.

Tide gauge records updated in the
30 days prior to
25 Jan 2012
Learn about PSMSL, contact us, read news items and annual reports
Obtain and submit tide gauge and bottom pressure data
Browse the data set via GoogleEarth or obtain derived products, view regional
commentaries and author archives
A wide variety of
FAQs,
training and software documentation, information on
non-oceanographic signals in tide gauge records (e.g., glacial isostatic
adjustment, atmospheric pressure, etc.)
Links to other networks and programs, as well as international sea level
contacts