The Permanent Service for Mean Sea Level (PSMSL), hosted by the Proudman Oceanographic Laboratory (POL), is the global data bank for long term sea level change information from tide gauges. The PSMSL data set is the main source of information on long term changes in global sea level during the last two centuries. This site contains data sets, and information on other services such as vertical land movements and air pressure. There are answers to frequently asked questions about sea level changes, packets on data use available, annual reports, and other contacts for more information.
This description of a site outside SERC has not been vetted by SERC staff and may be incomplete or incorrect. If you
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