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  • CODATA

    34th CODATA General Assembly


    Australia, Brisbane Brisbane, Australia
    🌐 Other

    The 34th CODATA General Assembly will take place on 17-18 October 2025 in Brisbane, Australia, and online. See the letter from CODATA President convening the General Assembly on the dates […]

  • vlbi göteborg sweden

    10th International VLBI Technology Workshop (IVTW)


    Gothenburg, Sweden Gothenburg, Sweden
    IVS

    The 10th International VLBI Technology Workshop (IVTW)  will take place October 21-25, 2025. The meeting will be hosted by Chalmers University of Technology, Onsala Space Observatory, in Gothenburg, Sweden. The scope of the workshop is to encompass all areas of VLBI hardware and software development and techniques on station updates, frontends, backends, recorders, correlation, image processing, potential […]

  • VLBI school Chalmers

    5th IVS Training School on VLBI for Geodesy and Astrometry


    Sweden, Gothenburg Gothenburg, Sweden
    📚 Education & Training

    The aim of this training school is to prepare for the next generation of VLBI, both in terms of technical development and knowledge transfer between generations of researchers. The new VLBI Global Observing System (VGOS) is being installed worldwide and continues to develop. VGOS promises significant improvement in the accuracy of VLBI results. Thus, VGOS […]

  • XVI SIRGAS School “VLBI and SLR Data Processing”

    • Sponsorship/Co-Organised:
    • IAG; IUGG; IAGA; PAIGH

    Facultad de Ingeniería - Universidad Nacional de San Juan Av. Libertador Gral. San Martín 1109, J5400ARL San Juan, Argentina, San Juan, Argentina
    📚 Education & Training

    The XVI SIRGAS School will be held in the beautiful city of San Juan, Argentina, with the aim of training professionals in the field of geodesy through the processing of VLBI […]

  • Doris Days School 2025

    IDS DORIS School | DORIS Days 2025

    • Sponsorship/Co-Organised:
    • IDS

    National Technical University of Athens, Athens, Greece Zografos Campus, School of Rural Surveying & Geoinformatics Engineering, Labadarion Building 9 Heroon Polytechniou Street, Athens, Greece
    📚 Education & Training

    The IDS is organizing a new edition of the “DORIS Days" designed to offer both a foundational and hands-on experience with DORIS and the IDS community, tailored especially to early-career researchers and students. Monday, 3 November (second half of UTC day) Introductory and advanced presentations on the DORIS system, IDS, precision applications, and associated tools […]

  • IDS meeting

    DORIS Analysis Working Group Meeting


    Athens, Greece Athens, Greece
    IDS

    Dates: November 6 (full day) & 7 (morning), 2025 Local host: Maria Tsakiri (NTUA) Meeting location: National Technical University of Athens, Greece – Patision Campus 28th Oktovriou (Patision) Avenue No 42, 10682 Athens Hybrid meeting Other related event (invitation-only): Governing Board hybrid meeting, Friday November 7 (TBD) More information: https://ids-doris.org/ids/meetings/ids-meetings.html  

  • “Talks on GIA” seminar


    📚 Education & Training

    "Talks on GIA" seminar - Constraining GIA where the mantle is heterogeneous AND Community Priorities for GNSS Measurements We will have two presentations. Erica Lucas (University of California, Santa Cruz, […]

  • “Talks on GIA” seminar


    Commission 3

    Helio Guerra Neto and Jeff Freymueller from Michigan State University, East Lansing, USA, will present "GIA in the Great Lakes Basin: A Geodetic Perspective on Vertical Motion and Hydrological Loading" […]

  • AGU25 – GGOS Session


    New Orleans, USA New Orleans, United States
    AGU

      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…

  • AGU

    AGU Annual Meeting 2025


    New Orleans, USA New Orleans, United States
    AGU

    Event Category: agu

  • Webinar – AI For GNSS Remote Sensing


    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. […]

  • “Talks on GIA” seminar 3


    Commission 3

    Mirjam Bilker-Koivula (Finnish Geospatial Research Institute) and Holger Steffen (Lantmäteriet, Sweden), will present "The Whys and Hows of Dealing with Glacial Isostatic Adjustment in a Mapping Authority" Glacial isostatic adjustment […]

  • Women in scientific organizations


    ECS

    An event to mark the International Day of Women and Girls in Science on 11 February 2026 the International Science Council (ISC), InterAcademy Partnership (IAP) and Standing Committee for Gender […]

  • GNSS-EPOS Webinar, with Dr. Marianne Métois


    Commission 3

    We are pleased to invite the GNSS-EPOS community to the inaugural session of our 2026 webinar series, featuring guest speaker Dr. Marianne Métois from the Laboratoire de Géologie de Lyon. […]

  • UAW REFAG Munich 2026

    Munich 2026 | REFAG Symposium + Unified Analysis Workshop UAW


    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


    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 […]

  • Talks on GIA Seminar

    • Sponsorship/Co-Organised:
    • and PALSEA.
    • SCAR-INSTANT Theme 2

    Commission 3

    Paul Tregoning (Australian National University, Canberra, Australia), will present "A tool to assess the accuracy of glacial isostatic adjustment predictions of present-day crustal uplift rates" While there are many global […]

  • GeodCon-26

    • Sponsorship/Co-Organised:
    • India
    • Regional Centres for Geodesy

    Indian National Science Academy (INSA), New Delhi New Delhi, India
    IAG

    GeodCon-26 is a premier national symposium bringing together researchers, professionals, policymakers, and industry leaders to discuss recent advancements in geodetic science and its applications. The conference highlights innovations in Earth observation, reference frames, satellite and ground-based measurements, and the integration of emerging technologies such as AI and cloud computing. Through expert tutorials, technical sessions, and collaborative workshops, GeodCon-26 aims to strengthen geodetic capacity and position India at the forefront of global geospatial science.

  • Tracking Mountain Aquifer using Space Geodesy

    • Sponsorship/Co-Organised:
    • IAG

    Commission 3

    Tracking Mountain Aquifer Storage and Discharge Using Space Geodesy: Using high-precision GNSS surface displacements, this study quantifies groundwater storage changes in the Sierra Nevada and Cascade ranges. Results show long-term depletion due to droughts but rapid recharge during extreme precipitation events, which can restore and sustain groundwater storage and influence regional water supply and ecosystem resilience.

  • IGETS SG Technical Workshop

    • Sponsorship/Co-Organised:
    • GWR
    • IGN-SPAIN

    Yebes Observatory Cerro de la Palera, s/n, Yebes (Guadalajara), Spain
    IGETS

    This Technical Workshop aims to bring together operators, users, and manufacturers of superconducting gravimeters to share, collect and transmit knowledge and experiences, providing a forum to discussing instrumental challenges, processing strategies, new developments, and ongoing scientific applications.

  • Hydrologic Signature in Geodetic Observations

    • Sponsorship/Co-Organised:
    • Commission 3
    • IAG
    • WG3.1 Hydrologic Signature in Geodetic Observations

    Commission 3

    We announce a seminar by Wenjin Chen on algorithms and software for efficient gravity forward modeling of hydrological mass changes. The talk reviews methods in Cartesian and spherical systems, comparing accuracy and efficiency of modeling approaches, and highlights trade-offs between realism and computation, with applications to hydrological mass change analysis.

  • 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 […]

  • International Scientific Conference


    University of Latvia, House of Sciences Jelgavas str. 3, Riga, Latvia
    Commission 2

    This conference explores Earth’s internal and external processes and their interaction with the space environment. It covers crust and mantle dynamics, tectonics, seismicity, and variations in gravitational and magnetic fields, as well as satellite and geodetic methods, fostering interdisciplinary collaboration across geophysics, geology, geodesy, and space sciences.

  • 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 […]

  • EGU General Assembly 2026


    Vienna, Austria Vienna, Austria
    EGU

    Abstract Submission Deadline: Thursday, 15 January 2026, 13:00 CET EGU 2026 website: https://www.egu26.eu

  • Geodesy Reception 2025 EGU

    IAG Geodesy Reception 2026

    • Sponsorship/Co-Organised:
    • BEV
    • DGFI-TUM
    • EGU
    • GFZ
    • GGOS
    • IAG

    BEV - Federal Office of Metrology and Surveying Schiffamtsgasse 1-3, Vienna, Austria
    IAG
    Registered people: 4 / 80

    The Geodesy Reception 2026 will take place on Tuesday, May 5 (19:00-21:45) during the EGU General Assembly 2026. It will be hosted again at the main building of BEV (Federal Office of Metrology and Surveying). See recap of last years Geodesy Reception 2025. Registration ⚠️ Registration is required, as capacity is limited to 120 participants. […]

  • Talks on GIA Seminar

    • Sponsorship/Co-Organised:
    • PALSEA.
    • SCAR-INSTANT Theme 2

    Commission 3

    Allie Coonin (Brown University, Providence, USA) and Tamara Pico (University of California, Santa Cruz, USA) will present: "Transient Earth Rheology Temporarily Slows West Antarctic Ice Retreat in Future Climate Projections" Projections of sea-level change and Antarctic Ice Sheet (AIS) stability under anthropogenic climate change hinge upon accurately describing physical feedbacks that link ice dynamics (marine […]

  • Hydrologic Signature in Geodetic Observations

    • Sponsorship/Co-Organised:
    • University of Trieste

    Commission 3

    We are pleased to announce our third seminar hosted by the IAG Working Group 3.1. Christian Massari will present on hydrologic variability in Europe and beyond using satellites and in situ sensors. The seminar will be held on May 13; further details and the link will be provided later.

  • JpGU-AGU Joint Meeting 2026

    • Sponsorship/Co-Organised:
    • JpGU AGU

    JpGU-AGU Joint Meeting 2026 Chiba, Japan
    AGU

    JpGU-AGU Joint Meeting 2026 is the first joint meeting with AGU since 2020. As in recent years, we plan to hold the meeting in the hybrid format, mixing on-site (at Makuhari Messe in Chiba City) and online. https://www.jpgu.org/meeting_e2026/news/news20250917_01.html

  • FIG - International Federation of Surveyors

    FIG CONGRESS 2026


    Cape Town, South Africa Cape Town, South Africa
    FIG

    FIG and the local organisers are looking forward to welcoming you to Cape Town. Reserve the dates:  24-29 May 2026 The four congress dates are 25-28 May 2026 and the two General Assembly days 24 and 29 May 2026 and with various pre events primarily on 24 May. Event Category: fig