• Virtual School of Geodesy – Reference Frames, Geodynamics, Atmosphere

    • Category:
    • GGOS
    • Commission 1
    • ECS
    • IERS
    • 📚 Education & Training

    📚 Education & Training

    🎯 Course Objective: The objective of the 2025 School is to provide the most important concepts on the definition, implementation, and maintenance of global, continental, and national reference frameworks, as well as their importance in various applications. It will also address advances in Earth System monitoring in response to the challenges posed by climate change, […]

  • 1st GGOS IberAtlantic Summer School

    • Category:
    • GGOS
    • ECS
    • 📚 Education & Training

    Yebes Observatory Cerro de la Palera, s/n, Yebes, Guadalajara, Spain
    📚 Education & Training

    Location: Yebes Observatory, Cerro de la Palera, s/n, 19141 Yebes, Guadalajara, Spain Organizers: GGOS IA, IGN, Yebes Observatory, RAEGE-Az Sponsors: IGN Spain, RAEGE-Az, ROA Parteners: National Geographic Institute of Spain (IGN Spain), Yebes Observatory, RAEGE-Az, Royal Observatory of Spanish Navy (ROA), Directorate-General for the Territory of Portugal (DGT), College of Geographic Engineering of the Order of […]

  • GGOS Days 2025 | GGOS Governing Board Meeting | GGOS Science Panel Meeting

    • Category:
    • GGOS

    Rimini, Italy Via della Fiera, 23, Rimini, Rimini, Italy
    GGOS

    The annual business meeting of GGOS, known as GGOS Days, was integrated in 2025 with the IAG Scientific Assembly 2025. GGOS reports were given during the GGOS-related oral and poster sessions and at the GGOS Governing Board and Science Panel meeting: GGOS Days 2025 | Oral & Poster Sessions Date: September 3-5, 2025 (in-person only) […]

  • South African National Geodesy Workshop

    • Sponsorship/Co-Organised:
    • DLRRD
    • NRF-SARAO
    • SANSA
    • UCT
    • UKZN
    • Category:
    • GGOS
    • UN (United Nations)

    South African Astronomical Observatory (SAAO) Auditorium SAAO, 1 Observatory Rd, Observatory, Cape Town, Cape Town, South Africa
    GGOS

    Towards a National Geodesy Working Group for South Africa Geodesy — the science of measuring the Earth’s shape, orientation, gravity field, and changes over time — is the foundation of modern mapping, positioning, land administration, infrastructure, and climate monitoring. South Africa has a proud history in terrestrial and space geodesy, from early triangulation networks to […]

  • AGU25 – GGOS Session

    • Category:
    • GGOS
    • AGU

    New Orleans, USA New Orleans, United States
    GGOS

      The AGU Annual Meeting 2025 brings together geoscientists from all over the world to one meeting covering all disciplines of the Earth, planetary, and space sciences. GGOS is planning to have it’s own session. More information will follow…

  • Webinar – AI For GNSS Remote Sensing

    • Category:
    • GGOS

    GGOS

    This online meeting of the IAG GGOS Joint Study Group on AI for GNSS Remote Sensing (open to non-members) brings together researchers and practitioners to discuss recent advances in artificial intelligence and machine learning applied to GNSS-based Earth observation. The program covers AI-driven approaches for atmospheric and ionospheric sensing, tropospheric modeling, uncertainty quantification, and GNSS reflectometry. […]

  • Munich 2026 | REFAG Symposium + Unified Analysis Workshop UAW

    • Category:
    • Commission 1
    • GGOS
    • IAG Services
    • IERS

    LDBV - Landesamt für Digitalisierung, Breitband und Vermessung Alexandrastraße 4, Munich, Germany
    Commission 1

    The Technical University of Munich (TUM) is proud to lead global geodetic research as it currently holds the presidents of Commission 1 “Reference Frames” of the International Association of Geodesy (IAG) and the IAG Global Geodetic Observing System (GGOS). In this prominent role, TUM is excited to host two landmark events in 2026: The IAG […]

  • UAW2026: GGOS/IERS Unified Analysis Workshop 2026

    • Category:
    • GGOS
    • IERS

    Munich, Germany Munich, Germany
    GGOS

      Under the umbrella of the International Association of Geodesy (IAG), the IAG’s Global Geodetic Observing System (GGOS) and the International Earth Rotation and Reference Systems Service (IERS) periodically hold unified analysis workshops to discuss current issues in geodetic data analysis and the determination of geodetic reference frames, as well as the provision of reliable […]

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

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

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

    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.

  • IGS Workshop 2026

    • Category:
    • GGOS
    • IAG Services
    • IGS

    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 […]

  • 12 Spanish-Portuguese Assembly of Geodesy & Geophysics

    • Sponsorship/Co-Organised:
    • Universidad Politécnica de Madrid
    • Category:
    • GGOS
    • IACS
    • IAGA
    • IAHS
    • IAMAS
    • IAPSO
    • IASPEI
    • IAVCEI
    • 📚 Education & Training

    ETSI Topografía, Geodesia y Cartografía Mercator Avenue, Madrid, Spain
    📚 Education & Training

    The Spanish-Portuguese Assembly of Geodesy and Geophysics, which held its first meeting in Almería in 1998, began meeting every two years, alternating between the two countries responsible, Spain and Portugal. Over the course of its sessions, it has established itself as a research forum in the fields of Geodesy, Seismology, Meteorology, Geomagnetism, Hydrology, Oceanography, Volcanology, […]

  • Summer School: satellite-based hydrological data assimilation

    • Sponsorship/Co-Organised:
    • Aalborg University
    • Category:
    • ECS
    • AGU
    • Commission 2
    • EGU
    • GGOS
    • IAHS
    • ICCC
    • ICGEM
    • UN (United Nations)
    • 📚 Education & Training

    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 […]

  • Global Geodesy: A Common Language for the Earth

    • Sponsorship/Co-Organised:
    • GGOS Japan
    • The Geodetic Society of Japan
    • Category:
    • GGOS

    Tsukuba International Congress Center Tsukuba, Japan
    GGOS

    The registration is accepted from below by September 6, 23:59JST https://forms.cloud.microsoft/r/snuYXftqLc Free of Charge.

  • GGOS-Africa Workshop

    • Category:
    • GGOS

    Ole-Sereni, Nairobi, Kenya Ole-Sereni, Nairobi, Kenya
    GGOS

    GGOS-Africa Workshop 2026 takes place 5–7 October in Nairobi, Kenya, marking the first workshop of GGOS Africa, which has just been officially adopted as a GGOS Affiliate by the Global Geodetic Observing System. In-person attendance is by invitation, but all talks are streamed free online — registration grants access to the livestream, and recordings/slides will […]

  • ESA 10th International Colloquium on GNSS

    • Sponsorship/Co-Organised:
    • ESA
    • Category:
    • Commission 1
    • GGOS
    • IDS
    • IERS
    • IGS
    • ILRS
    • IVS

    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.

  • Gravity Geoid and Height Systems Symposium (GGHS2026)

    • Category:
    • GGOS
    • Commission 2
    • IGFS

    Indian National Science Academy New Delhi, India
    GGOS

    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 […]

  • 24th International Workshop on Laser Ranging

    • Sponsorship/Co-Organised:
    • CONICET
    • ILRS
    • UTN
    • Category:
    • AGU
    • Commission 1
    • Commission 2
    • Commission 3
    • Commission 4
    • EGU
    • GGOS
    • IAG Services
    • ILRS
    • IUGG

    Rectoria de la Universidad Tecnologica Nacional (UTN) Sarmiento 440, Buenos Aires, Argentina
    AGU

    The 24th International Workshop on Laser Ranging will take place in Buenos Aires from the 1st to 6th of November 2026. The conference venue is the Rectoría (rectorate building) de la Universidad Tecnológica Nacional (UTN), Sarmiento 440, Buenos Aires. Event Website: https://bkg.bund.de/en/bkg/events/ilrs-workshop

  • IAG Geodesy Reception 2027

    • Category:
    • GGOS
    • IAG

    IAG

    The Geodesy Reception 2027 is planned to take place on Tuesday, April 6 (19:00-22:00) during the EGU General Assembly 2027. It will be hosted by the TU Wien and commonly organized with the GGOS Coordinating office at BEV (Federal Office of Metrology and Surveying). Registration To attend this event a registration is required. All details […]

  • NGGM Science and Applications Workshop 2027

    • Category:
    • AGU
    • BGI
    • Commission 2
    • Commission 3
    • COSPAR
    • EGU
    • FIG
    • GGOS
    • IACS
    • IAGA
    • IAHS
    • IAMAS
    • IAPSO
    • IASPEI
    • IAU
    • IAVCEI
    • ICCC
    • ICGEM
    • IGFS
    • ISG
    • IUGG
    • Projet QuGe
    • UN (United Nations)

    TBD Gruttosingel 20, Carcassonne, France
    AGU
  • CGU 2028-IGC2028 First Circular

    • Category:
    • AGU
    • Commission 1
    • Commission 2
    • Commission 3
    • Commission 4
    • ECS
    • EGU
    • FIG
    • GGOS
    • IAG
    • IAG Comissions
    • IAG ICCs
    • IAG Projects
    • ICCC
    • ICCM
    • ICCT
    • Projet QuGe
    • 📚 Education & Training

    BMO Centre Calagry, Canada
    📚 Education & Training

    The Canadian Geophysical Union (CGU) 2028 annual meeting will be held in conjunction with the 38th International Geological Congress (IGC) in Calgary, Canada, from August 12–20, 2028. Under the overarching theme "Geosciences for Humanity," this joint event serves as a premier global forum for advancing Earth science research and its societal applications. The CGU program […]