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Mobile GNSS Park – GPSMob

GPSmob is one of Résif’s specific actions.

A range of instruments which acts as a complement to permanent networks

Résif-GPSMob is a range of mobile GNSS instruments (GPS, Glonass, Galileo) made available to the scientific community to carry out geodetic measurements over specific areas (without geographical restrictions) and over short periods of time (a few weeks).


The range of equipment includes (in february 2021) 50 Leica GR25 receivers with their accessories (antenna, cables, internal batteries, chargers…), robust laptops for field conditions, tripods, bipods, Unavco-type masts, foldable solar panels, numerous cables and extensions and other small accessories supplied on request. GPSMob is an approved repairer of Trimble receivers that equip permanent French networks such as those which are part of the Résif-Renag action.

Key numbers

The GPSMob instrumental park has 50 mobile stations representing 2674 measurement points in 2020.



Domain : GNSS

Instrumentation : Mobile

Steering : CNRS-Insu
Supervisor : Alexis Rigo, ENS Paris / Observatoire de Paris
Technical and web contact :  Olivier Charade, CNRS-Insu

Members : Communauté scientifique nationale


This image was taken at the KNKL seismological station, located in the commune of Kani-Keli, Mayotte. The site was instrumented as part of the CNRS-INSU Tellus project, following the seismic-volcanic crisis that began in May 2018. This site hosts three types of instruments: an accelerometer, a broadband seismometer and a GPS antenna from RESIF’s GPSMOB mobile park, visible on this image © J. Van der Woerd, Eost. To know more about it