GEODESY / METROLOGY

Having now adopted a resolution confirming the importance of geodesy in sustainable development, the United Nations is encouraging its member states to use a modern reference framework which is accurate and accessible to all. The various GNSS systems (Global Navigation Satellite System) now available allow us to achieve levels of accuracy of just a few millimeters. Thanks to these systems, geodesy (the mathematical calculation of the Earth’s shape) now supplies cartographers and planners with reference points which become more accurate with each passing day. The regeneration of a country’s geodetic network is therefore absolutely fundamental for its development in view of the large range of sectors concerned: land administration, urban development, drainage and transport networks, but also the management of borders and therefore national security.

With support from the geodesy and leveling department (SGN) at IGN (national institute of geographic and forest information) which is internationally recognised for its scientific knowledge and practical experience, IGN FI offers its services in the fields of geodesy and metrology.


Our areas of expertise

Advise, design, execute or accompany projects in the fields of geodesy or metrology:

  • Installation of permanent station networks
  • Creation of a national geodetic reference system via a materialised network
  • Metrological surveillance of structures and sensitive areas over timescales of between a few days to several years
  • Dimensional measurements for scientific or industrial uses
  • Geoid measurements and calculations with centimeter accuracy
  • Calculation and actual marking of border demarcation
  • Creation of tools for converting coordinates from old local or national systems to a system compatible with international references
  • Transfer of technology
  • Theoretical and practical training

Ours means  

IGN FI offers its teams of specialists to clients, working through local mapping entities whenever possible:

  • Experts in creating geodetic networks, installing permanent measuring stations or calculating new national references: engineers, surveyors, specialists on the calculation software Bernese, geodesy theoreticians
  • Experts in automatic metrological surveillance: surveyors, systems engineers
  • Experienced project directors and managers

IGN FI advises its clients on the most suitable equipment to purchase and gives them access to the best equipment on the market:

  • Dual frequency GPS, scientific GPS antenna
  • High-precision digital level indicators, motorised automatic tachometers
  • Gyroscopes (Gyromat 3000), relative gravimeters, absolute gravimeters (A10)

All of this equipment is regularly calibrated and checked in respect of international standards.


Other “Geodesy” projects