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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.

About Us:

Learn about PSMSL, contact us, read news items and annual reports

Data:

Obtain and submit sea level data measured by tide gauges, GNSS receivers and bottom pressure recorders

Products:

Browse the data set via Google Earth or obtain derived products, view regional commentaries and author archives

Training & Information:

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:

Links to other networks and programs, as well as international sea level contacts