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IAG leaflet

IAG brochure

IAG booklet

IAG History

The ITRF 2014 has been published

The new version of the International Terrestrial Reference Frame (ITRF) was released in January 21, 2016, and is available at the dedicated website: http://itrf.ign.fr/ITRF_solutions/2014/. For more information, please click here!


Milestone reached on Svalbard

The Norwegian Mapping Authority’s new geodetic Earth observatory at Ny Ålesund in the Svalbard islands is taking shape, with the first stage completed just over a year after construction began.

This means that the new instrument building is now ready to receive the antennas which will be used to measure the planet’s motions and changes. For more information, please click here!


A roadmap for the enhancement of geodesy

The United Nations Global Geospatial Information Management (UN-GGIM) Working Group on the Global Geodetic Reference Frame (GGRF) is now drafting a roadmap for the enhancement of the Global Geodetic Reference Frame. Importantly the roadmap will also address factors affecting the Sustainability of the GGRF. For more information, please click here!


UN General Assembly urges sharing of geospatial data to benefit people and planet

The science that supports the precise pinpointing of people and places should be shared more widely, according to the United Nations General Assembly as it adopted its first resolution recognizing the importance of a globally-coordinated approach to geodesy – the discipline focused on accurately measuring the shape, rotation and gravitational field of planet Earth. For more information, please click here!

Welcome to the International Association of Geodesy

The International Association of Geodesy (IAG) is a scientific organization in the field of geodesy. It promotes scientific cooperation and research in geodesy on a global scale and contributes to it through its various research bodies. It is an active member of the International Association of Geodesy and Geophysics (IUGG) which itself is a member of the International Council for Science (ICSU).
The IAG has a long and distinguished history that goes back to 1862, the year, in which the "Mitteleuropäische Gradmessung" was established. This organization was formed to promote scientific work in geodesy in Central Europe, following a proposal made a year earlier by J.J. Baeyer (1861). In 1867, the name of the organization was changed to "Europäische Gradmessung", because by then countries from all of Europe had joined the organization. In 1886, the name was changed to "Internationale Erdmessung", emphasizing the need for international cooperation to solve the scientific tasks of geodesy. The French and English translations of this name resulted in the current name "International Association of Geodesy (IAG)". Thus, the IAG as an international scientific organization goes back to 1886 and is one of the oldest international organizations of this kind.

Mission

The Mission of the Association is the advancement ofgeodesy. The IAG implements its mission byfurthering geodetic theory through research andteaching, by collecting, analyzing, modelling andinterpreting observational data, by stimulating technological development and by providing a consistent representation of the figure, rotation, and gravity field ofthe Earth and planets, and their temporal variations.

  • GGHS2016 “Gravity, Geoid and Height Systems 2016”, Thessaloniki, Greece
  • ITRF 2014 is available
  • 2016 Airborne Gravity for Geodesy Summer School


  • Current date: February 12, 2016

    2016-02-15- 2016-04-30
    GGHS 2016
    Joint Symposium of Commission 2 and IGFS
    Thessaloniki, Greece
    Abstract submission

    2016-02-29

    International Conference on Earthquake Engineering and Post Disaster Reconstruction Planning
    Early Bird Registration

    2016-03-09- 2016-03-12
    2nd IVS Training School on VLBI for Geodesy and Astrometry
    Hartebeesthoek, South Africa

    2016-03-13- 2016-03-19
    9th IVS General Meeting
    Johannesburg, South Africa

    More events

    Kobe, Japan