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.
46th Scientific Assembly of the Committee on Space Research (COSPAR) and Associated Events "COSPAR 2026" Please find more info here: https://cospar2026.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 […]
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 […]
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 […]
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.
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 […]
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) 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 […]
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 […]
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.
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 Institute of Geosciences (IGEO) and joint IAG-IASPEI sub-commission "Seismo-geodesy" are delighted to invite you to the 21st WEGENER Assembly, which will take place in Tirana, Albania, from October 13–15, […]
The SIRGAS Biennial Symposium is a leading international forum that brings together geodesists, geophysicists, researchers, and professionals from across the Americas and beyond to discuss advances in geodetic reference systems […]
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The 4. ICCC Workshop on Geodesy for Climate Research will take place as a hybrid event in Potsdam, Germany and online everywhere. More information to follow in spring 2026.
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This IUGG General Assembly will get under way at Incheon's Songdo Convensia in July 2027. Incheon is expecting more than 5,000 scientists and experts from both Korea and abroad to attend the event. Event Category: iugg
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A workshop focused on glacial isostatic adjustment (GIA), ice sheets, sea-level change, and associated geodetic and geophysical observational constraints will be held in Dresden, Germany, from 28 May to 2 June 2028. This will be a follow-on workshop in a series of similar events. The last GIA Workshop took place in Sidney, BC, Canada, in […]
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 […]
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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.