New Film about Terrestrial Reference Frames

Due to the success and very positive response to the film Discover GGOS and Geodesy we are working on the production of more videos about geodetic products. Now we are proud to present the new film Terrestrial Reference Frames – Connecting the World through Geodesy, which shows the great importance of ITRF for science and society.


Proceedings of the IAG Symposia at IUGG Berlin

Submissions are welcomed for the Berlin IUGG volume of the IAG Symposia series, with an initial submission deadline of October 15. Papers are welcome from any of the IAG symposia, or from joint symposia sponsored or co-sponsored by IAG. All papers will be published Open Access, and the cost for this is covered by the IAG.


IUGG General Assembly 2023 Summary

The 28th IUGG General Assembly was held on 11-20 July 2023 in Berlin, Germany. It gathered a total of 5000 participants which is a record of IUGG General Assemblies. The number of IAG participants was about 580 which is also a record in the General Assemblies.


Next GGOS President

Laura Sanchez from DGFI/TUM was elected by the IAG Executive Committee during the 28th General Assembly of the IUGG as a new GGOS President. She will take over the presidency from Basara Miyahara and serve in this function from July 20, 2023.


IAG Opening Ceremony - Awards and Prizes

IAG held its opening ceremony at the 28th IUGG General Assembly and announced the winners of the Levallois Medal, the Guy Bomford Prize, the Young Authors' Award and the Best Reviewer Award. Now with Laudations!


IAG welcomes the participants of the IUGG 2023 General Assembly, Berlin, Germany

The scientific program of IAG starts on Wednesday morning (July 12) and lasts until the evening of the next Wednesday on July 20, 2023! Eight days of interesting talks, lively poster sessions and fruitful discussions helping to further advance geodetic research and services provided to the geoscientific community.


IAG Events

Welcome to the International Association of Geodesy

The International Association of Geodesy (IAG) is a scientific association 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 a constituent association of the International Union of Geodesy and Geophysics (IUGG). 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 associations of this kind.

The Mission of the Association is the advancement of geodesy. IAG implements its mission by furthering geodetic theory through research and teaching, by collecting, analyzing, modelling and interpreting observational data, by stimulating technological development and by providing a consistent representation of the figure, rotation and gravity field of the Earth and planets, as well as their temporal variations.