• “Talks on GIA” seminar

    • Category:
    • Commission 3

    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

    • 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 […]

  • AGU Annual Meeting 2025

    • Category:
    • AGU

    New Orleans, USA New Orleans, United States
    AGU

    Event Category: agu

  • 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 […]

  • “Talks on GIA” seminar 3

    • Category:
    • Commission 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

    • Category:
    • ECS
    • IUGG

    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

    • Category:
    • Commission 3

    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. […]

  • 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 […]

  • 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 […]

  • Talks on GIA Seminar

    • Sponsorship/Co-Organised:
    • and PALSEA.
    • SCAR-INSTANT Theme 2
    • Category:
    • Commission 3
    • IACS

    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
    • Category:
    • IAG

    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
    • Category:
    • Commission 3

    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.

  • EPOS days 2026

    • Category:
    • Commission 3
    • IAGA
    • IASPEI
    • IAVCEI
    • IGETS
    • IGS
    • 🌐 Other
    • 📚 Education & Training

    Palazzo Doglio hotel conference centre Cagliary, Italy
    📚 Education & Training

    EPOS Days is the flagship annual conference of the European Plate Observing System (EPOS), bringing together researchers, data providers, and infrastructure developers from across Europe to advance collaboration in solid […]

  • IGETS SG Technical Workshop

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

    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 […]

  • Hydrologic Signature in Geodetic Observations

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

    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
    • 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.

  • 14th IVS General Meeting 2026

    • Sponsorship/Co-Organised:
    • IVS
    • Category:
    • 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 […]

  • International Scientific Conference

    • Category:
    • Commission 2
    • Commission 4
    • ICCC
    • IUGG

    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
    • Category:
    • Commission 4
    • IGS
    • 🌐 Other

    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 […]

  • EGU General Assembly 2026

    • Category:
    • EGU

    Vienna, Austria Vienna, Austria
    EGU

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

  • Talks on GIA Seminar

    • Sponsorship/Co-Organised:
    • PALSEA.
    • SCAR-INSTANT Theme 2
    • Category:
    • Commission 3
    • IACS

    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" […]

  • Canceled Hydrologic Signature in Geodetic Observations

    • Sponsorship/Co-Organised:
    • University of Trieste
    • Category:
    • Commission 3

    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
    • Category:
    • 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 […]

  • FIG CONGRESS 2026

    • Category:
    • FIG

    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 […]

  • 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 […]

  • EU-wide Community Workshop on Quantum Gravimetry

    • Category:
    • Commission 2
    • Projet QuGe

    GFZ Helmholtz Centre for Geosciences Telegrafenberg, Potsdam, Germany
    Commission 2

    This in-person workshop is organized with the main objective to obtain feedback by the entire European community. Opinions, comments and thoughts on EQUIP-G project activities will contribute to shaping key […]

  • Geodesy Day – International Webinar on Geodesy

    • Sponsorship/Co-Organised:
    • IAG
    • IUGG
    • Category:
    • IAG
    • IUGG

    IAG

      “Every map ever drawn. Every satellite ever launched. Every border ever defined. All rest upon one science… Geodesy” About the Event What if the science that holds our modern […]

  • Colloquium for Prof. Torge and Prof Seeber

    • Sponsorship/Co-Organised:
    • Institut für Erdmessung
    • Leibniz Universität Hannover
    • Category:
    • IAG

    Leibniz University Hannover, Geodetic Institute, Room A104 Nienburger Str. 1, Hannover, Germany
    IAG

    Honorary colloquium on the occasion of the 95th birthday of Prof. Wolfgang Torge and the 85th birthday of Prof. Günter Seeber The keynote lecture " Hochstabile GNSS-Positionierung für die quanten-basierte […]

  • Talks on GIA Seminar

    • Sponsorship/Co-Organised:
    • PALSEA.
    • SCAR-INSTANT Theme 2
    • Category:
    • Commission 3
    • IACS

    Commission 3

    Achraf Koulali (Newcastle University, UK) and Matt King (University of Tasmania, Australia) will present: "Sensitivity of Antarctic GPS time series to varying surface mass balance loads, and implications for estimates […]

  • 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. […]

  • EUREF Symposium 2026

    • Category:
    • Commission 1

    ENSA Paris-Val de Seine 3/15, quai Panhard et Levassore, Paris, France
    Commission 1

    EUREF is the International Association of Geodesy (IAG) Reference Frame Sub-Commission for Europe. The EUREF Symposium has been organized since 1990 and the scope of the symposium covers EUREF activities, […]

  • IDS Workshop 2026

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

    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.

  • ICERS 2026

    • Category:
    • 🌐 Other
    • 📚 Education & Training

    National and University Library Hrvatske bratske zajednice 4, Zagreb, Croatia
    📚 Education & Training

    The University of Zagreb – Faculty of Geodesy is organizing the 2nd International Conference of Environmental Remote Sensing and GIS (ICERS) from July 1-3, 2026, in Zagreb, Croatia. ICERS serves […]

  • Talks on GIA Seminar

    • Sponsorship/Co-Organised:
    • PALSEA.
    • SCAR-INSTANT Theme 2
    • Category:
    • Commission 3
    • IACS

    Commission 3

    Here we show that GIA models with realistic 3-D mantle viscosity derived from seismic structures with an effective activation energy of 300–400 kJ/mol and a weak asthenosphere fit paleo-sea level data in North America better than several widely used 1-D GIA models.

  • EGU Campfire Geodesy – Share Your Research – 20th

    • Sponsorship/Co-Organised:
    • EGU
    • Category:
    • ECS

    ECS

    We are excited to announce the 20th edition of Geodesy Campfire – Share Your Research in July. The Geodesy EGU Campfire Events “Share Your Research” give (early career) researchers the […]

  • COSPAR 2026 – Scientific Assembly of the Committee on Space Research

    • Sponsorship/Co-Organised:
    • IAG
    • Category:
    • 🌐 Other
    • COSPAR

    Fortezza da Basso Viale Filippo Strozzi 1, Florence, Italy
    🌐 Other

    46th Scientific Assembly of the Committee on Space Research (COSPAR) and Associated Events "COSPAR 2026" Please find more info here: https://cospar2026.org/  

  • 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 […]

  • Workshop on GNSS Ionosphere (IWGI2026)

    • Sponsorship/Co-Organised:
    • IAG
    • Category:
    • Commission 4

    German Aerospace Center (DLR) Kalkhorstweg 53, Neustrelitz, Germany
    Commission 4

    Welcome to the Workshop on GNSS Ionosphere (IWGI2026) – Remote Sensing Techniques and Applications The “Workshop on GNSS Ionosphere (IWGI2026) – Remote Sensing Techniques and Applications” will take place as in-person […]

  • XI Hotine-Marussi Symposium

    • Sponsorship/Co-Organised:
    • IAG
    • Category:
    • ICCT

    Genoa Balderichgasse 31/24, Genoa, Italy
    ICCT

    We invite you to the XI Hotine-Marussi Symposium, which will be held in Genoa, Italy, September 7-11, 2026 under the scientific coordination of the Intercommission Committee on Theory (ICCT) of the […]

  • 17th European VLBI Network Symposium

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

    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
    • Category:
    • Commission 2
    • BGI
    • IGFS

    Herstmonceux Castle Hailsham, East Sussex, United Kingdom,
    Commission 2

    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 […]

  • VieVS Days 2026

    • Category:
    • IVS
    • 📚 Education & Training

    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 & […]

  • Frontiers of Geodetic Science (FroGS) Conference 2026

    • Category:
    • ECS
    • IAG
    • ICCC

    Messe München, Conference Center Nord Munich, Germany
    IAG

    Frontiers of Geodetic Science (FroGS) is a conference which takes place every year as part of the German INTERGEO, one of the world's leading platforms for geodesy, geoinformation, and land […]

  • IAG Commission 3 – TIGER Symposium in Geodesy

    • Category:
    • Commission 3

    Gävle, Sweden Gävle, Sweden
    Commission 3

      We will be hosting three consecutive meetings in Gävle (Sweden) in autumn 2026. Please join us for: Tracking and Investigating Geodynamics and Earth Rotation - TIGER Symposium in Geodesy […]

  • 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 […]