GLOSS sea level data centres


GLOSS is a global endeavour requiring the coordinated participation of an international group of agencies. The GLOSS sea level data centres in the table below provide complimentary data streams while helping to shape the future of the global in situ sea level observing network. In general, GLOSS data centres are associated with scientists involved with sea level research, which helps to maximise the quality of GLOSS datasets. Each of the data centres hold tide gauge data in addition to the GLOSS Core Network stations. The icons above lead to more information about the individual centres and access to their data holdings.





Data updates

Real time

Flanders Marine Institute (VLIZ), Belgium

Plots and downloads of raw data

Near real-time

Fast mode

University of Hawaii Sea Level Center (UHSLC), USA

Preliminary QC data from originators

4-6 weeks

Delayed mode

British Oceanographic Data Centre (BODC), UK

Final high frequency data from originators


Hourly data products

Joint Archive for Sea Level (JASL)/UHSLC, USA

Final hourly data product with corrections


Monthly averages

Permanent Service for Mean Sea Level (PSMSL), UK

Final monthly averages from originators


Coordinates and land motion (GNSS data)

Système d'Observation du Niveau des Eaux Littorales (SONEL), France 

Archive for GNSS data near GLOSS stations