The REFMAR dissemination of tidal data is transfered to the site, the marine and coastal geographic information portal

REFMAR and staff are available to help you make the switch and answer all your questions.

Any application for registration or account changes are no longer taken into account.

Formats of REFMAR tide gauge data available on

Sea level observations are covered by the "Oceanographic geographical features" theme of Annex III of the INSPIRE Directive. More specifically, these data come under the Observations and Measurements model. Accordingly, the dissemination of REFMAR tide gauge data on meets INSPIRE and ETALAB standards. The Sensor Observation Service provides two data formats: JSON and XML. To remain in continuity with the measurements delivered for several years on the REFMAR website, the TXT format was retained with no changes.


The Sensor Observation Service (SOS)

The Sensor Observation Service (SOS) is a special web service featuring an official standard. This service which is a standard of the Open Geospatial Consortium (OGC) is currently being adopted by INSPIRE as the official service for downloading observation and measurement data. Using SOS you can directly query measurement and observation data in a standardized way. The DescribeSensor query provides information on a given tidal observatory and GetObservations retrieves in XML or JSON the observations for a given site over a given period of time, for a given type of source (raw data, and validated data at different time steps).


ISO Metadata and cataloging

The platform has implemented this standard to "easily" meet the INSPIRE requirements for tidal observation data. Likewise, the architecture of complies with the Directive regarding cataloguing and displaying ISO metadata.



Dissemination of tidal data in XML or JSON formats

To familiarize you with future tide gauge data formats, we are providing an example of a download using the SOS format:

REFMAR and  personnel are available to help you make the switch and answer all your questions.




To find out more


Last updated : 2015 06 01

FAQs on access to tide gauge data REFMAR distributed