Data Portal - Coastal Water Level Observation System
Original (non-English) name
Système d'Observation du Niveau des Eaux Littorales
Acronym
Data Portal - SONEL
Citation
Abstract
The GPS observations that we provide are in the form of daily 30s files (24h of observations at 30s intervals) in the standard international RINEX format. Further information on the RINEX files.
Apart from the RINEX observation files of the GPS stations, SONEL provides ancillary information which enables a precise analysis of the GPS measurements, in particular:
- the precise orbits of IGS,
- the Earth orientation parameters of IGS.
In order to get a better idea of the status and opportunities on continuous GPS positioning of tide gauges, a survey is carried out periodically within various geoscience communities. The survey aims to identify the existing permanent GPS stations which are close to tide gauges (up to approximately 10-15 km).