Languedoc Roussillon DREAL: producer of tidal observations and new partner of REFMAR

Because it needs to understand hydrodynamic processes for coastal management, the Languedoc Roussillon DREAL, in partnership with the Department of Flood Forecasting Grand Delta (SPC GD), measures the level of the sea. In May 2009, a permanent tide gauge station was deployed in Port-Camargue. As a producer of sea level observations, the Languedoc Roussillon DREAL has become a REFMAR partner and publishes their tidal observations on the portal The water level measurements in Port-Camargue are now available in "near real time" on the REFMAR website.


Bannière DREAL Languedoc-Roussillon (mars 2013)


The Port Camargue tide gauge observatory

The Port-Camargue tide gauge observatory opened in May 2009. The measuring station consists of:

  • a radar pulse sensor affixed to a beam in front of the Port-Camargue harbormaster's office;
  • a programmable digital data logger installed inside the harbormaster's office;
  • a radio transmission system for data collection: radio modem connected to the data logger, VHF antenna mounted on the harbormaster building.

Observatoire marégraphique de Port-Camargue (Crédits DREAL Languedoc-Roussillon, 2010)


Data from the station are collected by the Department of Flood Forecasting Grand Delta via its rapid data logging system (sampling rate: 5 minutes).


Data availability

The sea level observations can be viewed on the Port-Camargue tidal station page on the REFMAR portal. Data validated by SHOM between 2009 and 2012, with an hourly or 5-minute sampling rate, are available for download after registering on the home page of the REFMAR portal. The "raw" data, that is to say data that have not been criticized or validated, that are subject to change and that have no legal value, with a 5-minute sampling rate, are also available to REFMAR users since the beginning of 2013.


Display of storm surges

The storm surge display service is not yet in place for this station. The storm surge product is the result of the combination of sea level observations with tide predictions for a given port. By processing current observations over several years of observations, the Coastal Hydrodynamics Department of SHOM will be able to develop accurate predictions of water levels for this port and calculate the storm surge data that will be available for viewing on REFMAR.




To find out more:

Producers tidal data partners REFMAR

Partenaires REFMAR - producteurs de données marégraphiques - mis à jour le 16/01/2019

Other news on the tide gauge to discover: