The 20th International Symposium on Geodynamics and Earth Tides (G-ETS) will take place in Strasbourg (France) from August 25 to August 30, 2024. The G-ETS 2024 will be held under the umbrella of the IAG (International Association of Geodesy) and, in particular, through the IAG Sub-Commission 3.1 (Earth Tides and Geodynamics) and International Geodynamics and […]
The IDS workshop 2024 will be held on 4 and 5 September 2024 in Montpellier, France, as part of the "30 Years of Progress in Radar Altimetry" Symposium. The IDS workshop will highlight current developments and the status of scientific results that use DORIS data, and will provide a platform for discussion and coordination of […]
The GGHS2024 “Gravity, Geoid and Height Systems 2024” Symposium will be held in Thessaloniki, Greece, from 4 to 6 September 2024. It focuses on methods for observing, estimating and interpreting the Earth’s gravity field and the essential role of gravity field modelling in measuring, understanding and predicting changes in the Earth system. More information on […]
We invite you (in-person or online) to join us for an amazing meeting on Geodesy in Africa at the Science Summit for the UN Sustainable Development Goals. In addressing global challenges like climate change, urbanization, and sustainable resource management, accurate geodetic data is crucial. We aim to elevate the global geodesy supply chain, align geodetic […]
Topics Meeting Logistics Dates Registration Abstract Submission Travel Award GGOS serves as an integrating framework for all components of the International Association of Geodesy (IAG), providing a clearinghouse for geodetic expertise and fostering interdisciplinary research. A current challenging topic is the modelling of spatio-temporal variations of the atmosphere (troposphere, stratosphere, mesosphere, thermosphere, ionosphere/plasmasphere) and the […]
Main Topics Participation Registration The annual business meeting of GGOS – the GGOS Days 2024 – was held in 2024 at the Wissenschaftsetage im Bildungsforum in Potsdam, Germany, from October 10-11 as a hybrid meeting. Programme - Agenda Detailed Meeting Description Status Report of GGOS components Meeting Summary List of Participants (online & in-person) Presentation […]
The 23rd International Workshop on Laser Ranging will be held during the week of October 20th- 26th, 2024, in Kunming, China. Details can be found in the attached announcement, and on the website for the workshop is https://23rdworkshop.casconf.cn/.
The next annual meeting of the American Geoscience Union - AGU24 - will be held this year in Washington, D.C. on 9-13 December 2024. More info: agu.org/annual-meeting GGOS Session We would like to draw your attention to our GGOS session G007: Geodetic Standards for Improved Accurate and Consistent Earth Observation Products from the Global Geodetic […]
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 Use of the Geoid”. It has been planned in cooperation with the Institute of Ionosphere (Almaty, Kazakhstan), which fostered this initiative. Please share this announcement […]
The governing-board meets on the weekend before EGU General Assembly 2025 (online or in-person): Date: Saturday, April 26 Time: 09:00 - 12:30 (CEST, UTC+2) Venue: TU Wien - Gußhausstraße 27-29, 1040 Vienna Room: 6th floor -Arnold Schmidt Raum Closed Meeting - Participants: governing-board members + Invitees Agenda: will follow ... Participation: It is possible to participate both in […]
Event Category: egu
Details: The Geodesy Reception 2025 will take place at: Date: Tuesday, April 29, 2025 Time: 19:00-22:00 Venue: BEV – Federal Office of Metrology and Surveying Address: Schiffamtsgasse 1-3, 1020 Vienna – 8th floor Sponsors: IAG (International Association of Geodesy) EGU Geodesy Division BEV (Federal Office of Metrology and Surveying) GGOS (Global Geodetic Observing System) Registration […]
The EGU General Assembly 2025 brings together geoscientists from all over the world to one meeting covering all disciplines of the Earth, planetary, and space sciences. The EGU aims to provide a forum where scientists, especially early career researchers, can present their work and discuss their ideas with experts in all fields of geoscience. EGU […]
Marine and submarine geodesy is needed for a wide range of applications such as evaluating stress building near tectonic plate boundaries, monitoring underwater volcanic activity, precise seafloor mapping or engineering. However, centimeter or sub-centimeter accuracy positioning is still a real challenge. This EGU splinter meeting, organized under the umbrella of the Inter-Commission Committee on Marine […]
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, this event will bring together scientists, researchers, and professionals working across the diverse field of positioning and its applications. The symposium a aims to foster […]
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 Columbia, Canada) & online, is now open. To register, please visit our website at https://polenet.org/2025-gia-workshop-registration/. Please note that space is limited by the physical capacity […]
🎯 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, […]
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 Agency, Nigeria). Registration: https://forms.gle/A5nyo8g9sjUDog3D9.
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, in Covilhã, Portugal. This event will take place in two parts: 24th June: a technical Analysis Centre & Repro3 Workshop (hybrid) 25-26th June: the Symposium […]
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 "Geodetic satellite missions and their applications" 25/06/2025, Part 1, 8:30 – 10:00, Hall E1 25/06/2025, Part 2, 8:30 – 13:00, Hall E1
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 […]
It is our pleasure to announce that the International Astronomical Union (IAU) Symposium "Advancing Reference Systems, Ephemeris, and Standards: from the Earth and the Moon to Solar System Bodies" (IAUS 401) will be held from August 4 to 9, 2025, at the National University of La Plata (UNLP), La Plata (Argentina). Reference systems and their […]
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 by the Geodesy Group at Aalborg University, Denmark, from August 26th to 28th, 2025. Why Attend? Dive into advanced techniques and tackle open challenges in measuring, modeling, […]
Join us at the IAG 2025 Scientific Assembly from 1 to 5 September 2025, in Rimini, Italy. With the theme "Geodesy for a Changing Environment", the conference will explore critical topics in geodesy across the four IAG Commissions: Reference Frames, Gravity Field, Rotation and Geodynamics, and Positioning and Applications. Additionally, the ggos-days-2025 will be held […]
The annual business meeting of GGOS, known as GGOS Days, was integrated in 2025 with the IAG Scientific Assembly. As a result, there will be no separate meeting as in previous years. Instead it will consist of GGOS reports during the GGOS-related oral and poster sessions and the GGOS Governing Board and Science Panel meeting: […]
We are pleased to announce that the JIVE VLBI School (JVS 2025) will take place during the week of 15-19 September 2025. The school will be held simultaneously at the Joint Institute for VLBI ERIC (JIVE) in Dwingeloo, the Netherlands, and the University of Pretoria, South Africa. The University of Pretoria will serve as a […]
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 GOCE along with Satellite Laser Ranging have demonstrated the utility of time-variable gravity data in understanding the mass changes and their transport within and between […]
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 […]
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.