Contributing agency

Station summaryGROI

  • More informations on each symbol.
  • GPS
    Tide Gauge
IGS-type acronym : GROI
Latitude : 47.64804700
Longitude : -3.50797100
Installed date : 2002-10-28
Decommissioned date : 2015-03-16
Country : FRANCE
Station status : Decommissioned (white and red cross)
Distance to Tide Gauge (m) : 4678
Domes Nr.: 10064M001
Station operator: Unknown
IGS-like station form :

GPS position times seriesGROI


(Reference epoch: )

Offsets (mm)

MMaterial change or malfunction
RFReference Frame change
NANot available
Position discontinuity
Velocity discontinuity
Vertical component
East component
North Component

Data available at SONELGROI

Quality plots on RINEX filesGROI

Quality plots on RINEX files of GROI Quality plots on RINEX files of GROI Royal Observatory of Belgium

Plots generated using software developed with the EPN team at ROB
Observations & tracking performance Satellite tracking

informations (this operation may take 20 to 45s)

The satellite tracking graph has been calculated for all stations for the first day of each month. If you wish to have a graph for another date, choose the 'Calculate a specific date' option.

Co-located instrumentsGROI

Photo albumGROI


If you have a relevant reference to suggest, please send-us an e-mail : sonel@sonel.org
  • puce Dodet, Bertin et al., 2019. Characterization of Sea-level Variations Along the Metropolitan Coasts of France: Waves, Tides, Storm Surges and Long-term Changes. Get this reference BibTeX of the reference
  • puce Gravalon, Seoane et al., 2022. Determination of weather-induced short-term sea level variations by GNSS reflectometry. Remote Sensing of Environment. Get this reference BibTeX of the reference