Dear Colleagues, We are glad to inform you that the International Service for the Geoid (ISG) has organized a new edition of the traditional International School on “The Determination and […]
The 3rd IAG Commission 4 Symposium: Positioning and Applications, will take place from 13 to 15 May, 2025, in Wuhan, China. As a continued Symposium Series of IAG Commission 4, […]
We are excited to announce that registration for the “2025 Glacial Isostatic Adjustment workshop: Advancing Models and Observational Constraints” taking place on June 2nd to 6th, 2025, in Sidney (British […]
🎯 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 […]
This 7th stop focuses on the African continent. Virtual Organising Committee: Fernand Balé (Bureau National d’Etudes Techniques et de Développement, Côte d’Ivoire) and Babatunde Rabiu (National Space Research and Development […]
The Local and Scientific Organizing Committees are pleased to announce that the next EUREF Symposium will take place from 24 to 26 June 2025, at the University of Beira Interior, […]
ESA-NASA Joint session C.02.05 “MAGIC – Preparing for the ESA-NASA satellite gravity constellation”. 25/06/2025, Part 1, 14:00 - 15:30, Room 0.94/0.95 25/06/2025, Part 2, 16:15 - 17:45, Room 0.94/0.95 A.10.02 […]
We are thrilled to announce the upcoming Summer School on "Satellite-based Hydrological Data Assimilation", specifically designed for early career scientists (MSc, PhD, and Postdoctoral researchers). This exciting event will be hosted […]
An online school on time-variable gravity from GRACE and GRACE-FO satellite missions Satellite gravimetry has become an indispensible tool for studying the earth system. The satellite missions CHAMP, GRACE/GRACE-FO and […]
The 2025 GRACE-FO Science Team Meeting will take place from Oct 7-9, 2025, in Boulder, CO (USA), at the University of Colorado, Boulder, in the Village Center! This meeting will […]
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 […]
"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, […]
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" […]
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 […]
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. […]
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 […]
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 […]
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 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 […]
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.
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.
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.
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 […]
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 […]
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.
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 aspects on the future of (terrestrial) gravimetry. This is centered around the main long-term goal to establish a permanent perennial entity of a shared park […]
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, such as the realisation, maintenance, and usage of ETRS89, EVRS and the EUREF Permanent Network. More Info - Event Website: https://euref2026.sciencesconf.org/
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 […]
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 format during 31st August – 4th September, 2026 in Neustrelitz, Germany. Participants and speakers will only be able to participate onsite at DLR site Neustrelitz. The […]
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. […]
IAG collaborates closely with numerous organizations within geodesy and beyond. See the list for details.
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.