Advancing positioning technologies and geodetic applications
IAG Commission 4 focuses on advancing positioning, navigation, and timing (PNT) technologies, with an emphasis on GNSS and alternative systems. It aims to improve positioning integrity, sensor integration, and geodetic applications, addressing challenges such as interference and atmospheric disturbances. The commission works with various organizations to develop innovative solutions for PNT systems, geodetic remote sensing, and engineering geodesy applications.
Commission 4 – Latest News
From Struve to Space: 11th Nordic Geodetic Commission Summer School held in Estonia 2025
September 19, 2025/by adminIAG Honors Outstanding Contributions in Geodesy: Awardees of 2023 and 2024
September 12, 2025/by adminSatellite Laser Ranging – How SLR Powers Geodesy
August 26, 2025/by adminLost Without Geodesy
July 21, 2025/by Martin SehnalWelcome to the New IAG Website
June 2, 2025/by adminAnnouncement of 3rd IAG Commission 4 Symposium
December 8, 2024/by adminCommission 4 – Upcoming Events

EPOS days 2026
16 March 2026 - 20 March 2026Palazzo Doglio hotel conference centre
ENC2026 European Navigation Conference
28 April 2026 - 30 April 2026Austria Center Vienna
IAG Geodesy Reception 2026
4 May 2026 - 7 May 2026BEV – Federal Office of Metrology and Surveying
IUGG General Assembly 2027
16 July 2027 - 22 July 2027Incheon, South KoreaDon’t miss any News, Events or Jobs!
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IAG Related Organisations
IAG collaborates closely with numerous organizations within geodesy and beyond. See the list for details.
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This website is provided by the IAG Secretariat and the GGOS Coordinating Office, which are hosted by the BEV – Federal Office of Metrology and Surveying (Bundesamt für Eich- und Vermessungswesen) in Vienna, Austria.
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