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  • Postponed PhHS-IHRF2026 – Int. Symposium on Physical Height Systems and the IHRF

    • Sponsorship/Co-Organised:
    • GGOS
    • IAG SC2.2
    • IGFS
    • IHRF CC
    • SC2.4

    General Authority for Survey and Geospatial Information (GEOSA) Riyadh, Kingdom of Saudi Arabia
    Commission 2

    The PhHS-IHRF2026 symposium will be held in Riyadh, Saudi Arabia from 7-9 April 2026. It focuses on observing and interpreting the Earth's gravity field and geoid, emphasizing height systems and the International Height Reference Frame (IHRF). This Joint IAG Symposium is co-organized by IAG Sub-Commissions 2.2 and 2.4, IGFS, and GGOS.

  • 14th IVS General Meeting 2026

    • Sponsorship/Co-Organised:
    • IVS

    Congress House Garmisch-Partenkirchen, Germany
    IVS

    The 14th General Meeting of the International VLBI Service for Geodesy and Astrometry (IVS) is the biennial general assembly of the geodetic/astrometric VLBI community. All IVS Associate Members and individuals who have interests in the application of VLBI in the fields of geodesy, Earth sciences, astrometry, and other astronomical applications in geodesy are invited to […]

  • ENC2026 European Navigation Conference

    • Sponsorship/Co-Organised:
    • ENC
    • EUGIN
    • OVN

    Austria Center Vienna Bruno-Kreisky-Platz 1, Vienna, Austria
    Commission 4

    We are pleased to announce the next edition of the European Navigation Conference series, ENC 2026, will take place in Vienna, April 28-30, 2026. The ENC-series is now widely acknowledged as the most important annual event in Europe bringing together the full positioning, navigation and timing community. What you can expect at ENC2026: Technical programme across […]

  • IGS Workshop 2026


    InterContinental Hotels Santiago Av. Vitacura 2885, Santiago de Chile, Chile
    GGOS

    Chile – where the crust trembles daily and even a traditional cocktail is nicknamed the “Earthquake” – will become the epicenter of an unprecedented scientific gathering in South America. On behalf of the Local Organizing Committee, we are pleased to formally announce the International GNSS Service (IGS) Workshop 2026, which will take place from the […]

  • IDS Workshop 2026

    • Sponsorship/Co-Organised:
    • CNES.
    • Copernicus
    • Eumetsat

    RheinMain CongressCenter CLS, Wiesbaden, Germany
    IDS

    The 2026 IDS Workshop will be held in Wiesbaden, Germany, from 23–25 June 2026 alongside the 2026 OSTST meeting. Organized by Eumetsat, Copernicus and CNES, it will showcase recent developments and scientific results based on DORIS data and foster discussion and coordination of future IDS community activities.

  • Summer School: satellite-based hydrological data assimilation

    • Sponsorship/Co-Organised:
    • Aalborg University

    Geodesy group, Aalborg University Rendsburggade 14, Aalborg, Denmark
    📚 Education & Training

    Geodesy group of Aalborg University is planning to have a summer school at the Geodesy Group, Aalborg University, August 25-28 2026. The school will be for four days and focusing on training Early Careers to improve their skill of satellite data processing and hydrological data assimilation. The program will be ~50%-50% on theory and practical […]

  • 17th European VLBI Network Symposium

    • Sponsorship/Co-Organised:
    • e-MERLIN
    • EVN
    • RAS
    • SKAO
    • The University of Manchester
    • UKRI
    • ukSRC

    The University of Manchester Manchester, United Kingdom
    IAU

    The European VLBI Network Symposium is the main forum for discussion of the latest Very Long Baseline Interferometry scientific results and technical developments within the EVN member countries. This biennial meeting brings together the global VLBI community to exchange knowledge, share research, discuss advancements in VLBI techniques, and foster collaboration in radio astronomy.

  • ITGRF Workshop 2026

    • Sponsorship/Co-Organised:
    • IAG

    Herstmonceux Castle Hailsham, East Sussex, United Kingdom,
    BGI

    The 2026 ITGRF workshop will provide an excellent opportunity to advance the International Terrestrial Gravity Reference Frame and to discuss current activities within the IAG Joint Working Group 2.1.1. The workshop will focus on ensuring the compatibility of absolute gravity observations, establishing and maintaining gravity reference stations, and developing a modern, user-oriented infrastructure for end-users. […]

  • VieVS Days 2026


    TU Wien Vienna, Austria
    📚 Education & Training

    The two-day workshop will cover the basics of analysing VLBI geodetic data, simulations and scheduling. Participants will have the opportunity to apply their learning through hands-on exercises utilising VieVS & […]

  • ESA 10th International Colloquium on GNSS

    • Sponsorship/Co-Organised:
    • ESA

    École de technologie supérieure (ETS) of Quebec Montreal, Canada
    Commission 1

    The ESA 10th International Colloquium on GNSS covers topics such as time and frequency principles, positioning and navigation, orbit determination, space navigation, GNSS-enabled science, Earth sciences, fundamental physics, remote sensing, and quantum technologies for PNT. Abstract submission is extended to 8 May 2026; selected papers appear in Advances in Space Research.

  • Geoid Potsdam Kartoffel Potatoe

    Gravity Geoid and Height Systems Symposium (GGHS2026)


    Indian National Science Academy New Delhi, India
    Commission 2

    The Gravity, Geoid and Height Systems Symposium (GGHS) is a leading international meeting organized under the International Association of Geodesy (IAG). It brings together experts, researchers, and students to discuss the latest developments in gravity field modeling, geoid determination, height systems, and their applications in Earth sciences and society. The next edition, GGHS2026, will continue […]

  • IAU Symposium 2027


    Windhoek, Namibia Balderichgasse 31/24, Windhoek, Namibia
    IAU

    January 18th – January 22nd, 2027 in Windhoek, Namibia Relativistic jets from active galactic nuclei are among the Universe’s most extreme particle accelerators. Blazars, with jets pointed toward Earth, show dramatic multiwavelength variability and gamma-ray flares, offering unique insights into particle acceleration, jet dynamics, and magnetic field structure. Yet key processes, such as jet formation, […]