geodesy.science - IAG website

Hydrologic Signature in Geodetic Observations
2026-05-13 16:00 (Europe/Rome)
We are pleased to announce our third seminar for our series, hosted by the International Association of Geodesy (IAG) Working Group 3.1: Hydrologic Signature in Geodetic Observations,
Presenter: Christian Massari – Research Institute for Geo-Hydrological Protection, CNR, Italy.
Title: Hydrologic variability in Europe and beyond as observed by satellites and in situ sensors
This seminar will be held on May 13 at 10:00 EDT/ 7:00 PDT/ 16:00 CET/ 23:00 CST.
Further details and the link will be posted at a later time.
Grace Carlson and Carla Braitenberg

JpGU-AGU Joint Meeting 2026
2026-05-24 00:00 - 2026-05-29 23:59 (Asia/Tokyo) | JpGU-AGU Joint Meeting 2026, Chiba, Japan
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 CONGRESS 2026
2026-05-24 - 2026-05-29 | Cape Town, South Africa, Cape Town, South Africa
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

IGS Workshop 2026
2026-06-01 - 2026-06-05 | InterContinental Hotels Santiago, Av. Vitacura 2885, Santiago de Chile, 7550023, Las Condes, Chile
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 behalf of the Local Organizing Committee, we are pleased to formally announce the International GNSS Service (IGS) Workshop 2026, which will take place from the 1st to the 5th of June 2026 at the Intercontinental Santiago.
The IGS Workshop serves as the premier global forum for advancing GNSS and geodesy. Hosted jointly by the University of Santiago de Chile (USACH) and the Military Geographic Institute (IGM), the 2026 edition will bring together leading experts, researchers, and practitioners to exchange insights, showcase technological breakthroughs, and define the trajectory of global geodetic infrastructure.
Key Details :

Dates : 1-5 June 2026
Venue : Intercontinental Santiago (Avenida Vitacura 2885, 7550023 Las Condes, Región Metropolitana, Chile)
Website : https://www.igs-workshop-2026.com
General Inquiries : workshop2026@igs.org

EU-wide Community Workshop on Quantum Gravimetry
2026-06-03 - 2026-06-05 | GFZ Helmholtz Centre for Geosciences, Telegrafenberg, Potsdam, Germany
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 of quantum gravimeters in Europe.
The workshop is addressed to all interested and relevant person from EU policymaker to European companies and geophysical service providers and different communities (geodesy, quantum sensing, metrology, geosciences and defense). We want to underline that the focus area is Europe.
Participants will be informed not only about the project structure and goals but about finished, ongoing and planned activities, spanning the entire scope of the project. The workshop involves various formats (presentations, panel discussions, display area, break-out activities and discussions).
Join, be active and enjoy this workshop which is organized for all of us!

Event website and registration: https://events.spacepole.be/event/268/
Project website: https://www.equip-g.eu/

Geodesy Day - International Webinar on Geodesy
2026-06-03 11:00 - 12:30 (Asia/Karachi)
“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 world together remains largely invisible to those who need it the most? Survey of Pakistan (SoP) is determined to change that.
On 3 June 2026, Survey of Pakistan will proudly observe National Geodesy Day in Pakistan – which will become a permanent observance every year. This event on 3 June is a landmark initiative to bring Geodesy out of the shadows and into the spotlight it deserves. In the spirit of the International Union of Geodesy and Geophysics (IUGG) and the International Association of Geodesy (IAG), this international webinar unites brilliant minds from across the globe to celebrate, advance and reimagine the future of geodetic sciences.
Why This Moment Matters?
We live in an era of climate change, rapid urbanization, satellite navigation and digital mapping – all underpinned by the precision of Geodesy. In Pakistan, however, the field continues to face institutional challenges, including limited academic recognition and the absence of dedicated university level degree programs. National Geodesy Day is a strategic initiative to address these gaps, stimulate scientific discourse and align national efforts with international geodetic standards and priorities.
Objectives

Promote awareness of Geodesy in Pakistan and its scientific significance within the framework of IUGG and IAG goals
Facilitate international exchange of knowledge on modern geodetic methods, technologies and applications
Strengthen scientific cooperation between Pakistan and the global geodetic community
To promote geodetic education and research programs at the national level
Contribute to the advancement of geodetic sciences at regional and global levels in support of IUGG’s mission

Who Should Attend
This webinar is open to all experts, researchers, academics, geospatial professionals and students with an interest in geodesy, surveying, remote sensing and related disciplines.
Be Part of Something Significant
National Geodesy Day is not a mere webinar, it is a meaningful step toward strengthening Pakistan’s engagement with the global geodetic community. We invite international experts, researchers and professionals to join us, share expertise and help shape Pakistan’s path towards joining more scientifically connected world.
To Join the Session
Platform: Zoom
Join Link: https://us06web.zoom.us/j/88311296173
Meeting ID: 883 1129 6173
“No registration required. Simply click the link on 3 June 2026 and join the session at 11AM (Pakistan Standard Time)”
Hosted by
Survey of Pakistan (SoP), National Geospatial Agency of Pakistan
https://geodesy.science/wp-content/uploads/EVENT_POSTER_Copyright-JunaidMemon_2026-05-21_b2c478.pdf
https://geodesy.science/wp-content/uploads/EVENT_POSTER_Copyright-SurveyofPakistan_2026-05-21_e7317a.pdf
https://geodesy.science/wp-content/uploads/EVENT_POSTER_Copyright-SurveyofPakistan_2026-05-21_74f73d.pdf

Colloquium for Prof. Torge and Prof Seeber
2026-06-09 16:00 - 17:30 (Europe/Berlin) | Leibniz University Hannover, Geodetic Institute, Room A104, Nienburger Str. 1, Hannover, 30167, Germany
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 Fluggravimetrie” (Highly stable GNSS positioning for quantum-based flight gravimetry) will be given by Dr. Temmo Wübbena, GEO++, Garbsen.
Please inform the secretariat of the Institute of Geodesy with Mr. Firat Örü (office@ife.uni-hannover.de, Tel.: +49-511-762-2795) by June 2, 2026 if you are attending in person
Link for online participation:
https://uni-hannover.webex.com/uni-hannover/j.php?MTID=me6187484076042c7737867ebab742d60
The event will be held mainly in German. However, it is planned to implement simultaneous translation with subtitles.

Talks on GIA Seminar
2026-06-11 15:00 - 16:00 UTC
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 of Glacial Isostatic Adjustment”
Antarctic Global Positioning System (GPS) vertical time series exhibit non-linear signals across a wide range of temporal scales, complicating the interpretation of long-term deformation associated with Glacial Isostatic Adjustment (GIA). One important contributor to these non-linearities is the short-term elastic response of the solid Earth to contemporaneous surface mass balance (SMB) variability. During the first part of this talk, we will show analysis results of GPS vertical displacement time series from the Transantarctic Mountains (TAM) to quantify the impact of SMB-driven loading on observed crustal motion. SMBL-induced deformation is found to introduce multiyear apparent changes in vertical velocities. After correcting for SMB loading, most GPS sites exhibit near-zero uplift rates, with a median velocity of 0.67 mm/yr, substantially lower than predicted by forward GIA models. We will then discuss these results within the wider context of Antarctica to show the critical role of SMB loading variability in interpreting GPS observations more widely, with implications for estimates of present-day Antarctic ice mass change. As a second case study, we will discuss the sensitivity of GPS velocities to SMB variability in a critical sector of East Antarctica, including in the Denman-Totten glacier region, suggesting that bedrock motion in that region is broadly of subsidence rather than uplift in contrast to GIA models. Finally, we will show that modelled SMB variability can be compared with GPS elastic displacements across Antarctica, as a new form of SMB model validation.

12 Spanish-Portuguese Assembly of Geodesy & Geophysics
2026-06-16 - 2026-06-19 | ETSI Topografía, Geodesia y Cartografía, Mercator Avenue, Madrid, 28031, Spain
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. Over the course of its sessions, it has established itself as a research forum in the fields of Geodesy, Seismology, Meteorology, Geomagnetism, Hydrology, Oceanography, Volcanology, Applied Geophysics, and Cryospheric Sciences, as well as a place for meeting and scientific exchange between Spanish and Portuguese researchers through the presentation and discussion of papers in these fields. The COVID-19 period marked the largest gap in the established periodicity, which we now wish to resume. Thus, two years after the last meeting, which took place in Évora in 2024, the 2026 meeting will be held in Spain. Next June, from the 16th to the 19th, Universidad Politécnica de Madrid and its Higher Technical School of Topography, Geodesy, and Cartography will host the 12th Spanish-Portuguese Assembly of Geodesy and Geophysics.

EUREF Symposium 2026
2026-06-23 - 2026-06-25 | ENSA Paris-Val de Seine, 3/15, quai Panhard et Levassore, Paris, 75013, France
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/

IDS Workshop 2026
2026-06-23 - 2026-06-25 | RheinMain CongressCenter, CLS, Wiesbaden, 31520, Germany
The 2026 IDS Workshop will take place in Wiesbaden, Germany, from 23 to 25 June 2026, in conjunction with 2026 OSTST meeting. The event is organized by Eumetsat, Copernicus and CNES.
The workshop will highlight recent developments and the current status of scientific results based on DORIS data. It will also provide a forum for discussion and coordination of future activities within the IDS community.

ICERS 2026
2026-07-01 - 2026-07-03 | National and University Library, Hrvatske bratske zajednice 4, Zagreb, 10000, Croatia
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 as a unique meeting point for sharing the latest advancements and applied solutions in the fields of remote sensing and GIS, offering fresh perspectives on addressing complex environmental challenges. Special emphasis will be placed on geospatial solutions for climate change, sustainable development, and effective resource management. We invite you to engage in dynamic discussions shaping the future of our planet, with a particular focus on the transformative power of geospatial data. This conference provides an ideal platform for collaboration, strengthening partnerships, and presenting your latest research activities and projects at the global level.

Conference deadlines:

1st February 2026 – Abstract submission
1st April 2026 – Full paper submission (up to 8 pages)
1st May 2026 – Registration
1st – 3rd July 2026 – ICERS Conference (Zagreb, Croatia)

Conference topics:

Remote Sensing for Environmental Monitoring
GIS for Sustainable Development
Disaster Management and Response
Conservation and Biodiversity
Innovations in spatial data-acquiring technologies
Multicriteria decision-making and GIS
Climate Change mitigation politics
Data interoperability
Artificial intelligence and big data

Talks on GIA Seminar
2026-07-08 15:00 - 16:00 UTC
Tao Yuan (University of Colorado, USA) working with
Shijie Zhong, Glenn Milne, Donna dePolo
will present
Reconciling inferences of mantle viscosity and late Quaternary ice history – the importance of an asthenosphere and 3-D viscosity
Deglaciation history models from the last glacial maximum (LGM) and accompanying mantle viscosity structures have been jointly constrained by fitting the paleo-sea level data through glacial isostatic adjustment (GIA) modeling. However, some GIA-inferred 1-dimensional (1-D) viscosity models, including the widely used VM5a, contradict the mantle viscosity structure inferred using other approaches, such as seismic imaging, mineral physics and geodynamics. 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. Our results also demonstrate that the inclusion of the asthenosphere and lateral viscosity variations permits a larger range of North American ice sheet reconstructions that produce quality fits to the sea-level data, including models with substantially greater volume at LGM, thus identifying a potential solution to balancing the sea level budget during this key climate event. To fit far-field sea level data, the ice volume at LGM in North America is required to be 10%-20% larger than that in ICE-6G, if ice models outside North America are unchanged.

EGU Campfire Geodesy – Share Your Research – 20th
2026-07-16 14:00 - 15:30 UTC
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 chance to talk about their work.
We have two exciting talks by our guest speakers:

Pierre Sakic (Institut de Physique du Globe de Paris) will present “Enabling seamless geodetic processing through multi-purpose tools: the examples of geodezyx & autorino”.
Iwona Kudłacik (Wrocław University of Environmental and Life Sciences – Institute of Geodesy and Geoinformatics) will present “High-rate GNSS data from shaking-table experiments for seismological applications”.

The Campfire will take place online on 16 July 2026, 14:00–15:30 (CEST), followed by an informal networking session with participants.
For more information and registration details, please visit the Geodesy EGU Campfire event page.
https://blogs.egu.eu/divisions/g/2026/06/30/egu-campfire-geodesy-share-your-research-20th-edition/
Interested in giving a talk at a future Geodesy EGU Campfire Event or have any questions? Please contact the Geodesy ECS Team at ecs-g@egu.eu.

COSPAR 2026 - Scientific Assembly of the Committee on Space Research
2026-08-01 - 2026-08-09 | Fortezza da Basso, Viale Filippo Strozzi 1, Florence, Italy
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
2026-08-25 - 2026-08-28 | Geodesy group, Aalborg University, Rendsburggade 14, Aalborg, 9000, Denmark
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 sessions. The focus will be on advanced techniques and open challenges in measuring and modeling the water cycle, as well as integrating satellite-based observations, including Satellite Gravity (GRACE/GRACE-FO and future missions NGGM/MAGIC), Satellite Altimetry (Sentinel and SWOT), and Soil Remote Sensing into large-scale hydrological models. Participants will be introduced to ensemble-based sequential Data Assimilation techniques for merging satellite data with models. The school emphasises hands-on learning, featuring practical exercises in Python, along with various interactive activities.
The school is free of charge, but a registration process will be followed to select the most relevant audiences. The registration link will be announced soon.

Workshop on GNSS Ionosphere (IWGI2026)
2026-08-31 - 2026-09-03 | German Aerospace Center (DLR), Kalkhorstweg 53, Neustrelitz, 17235, Germany
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 IWGI2026 will provide a platform for scientists and engineers to communicate and exchange their views on ionospheric observations, new methods, retrieval methods, data fusion, applications and future challenges. The workshop is open to contributions on latest results and developments in ionosphere reconstruction, spatial and temporal gradients modelling, monitoring techniques and prediction methodologies as well as ionospheric scintillation and propagation effects on microwave space-based geodetic techniques (e.g. GNSS, SLR, VLBI, DORIS etc.) and their mitigation using multi-frequency, multi-sensors observations. Latest results and developments relevant to the use of remote sensing techniques such as GNSS reflectometry for providing all-weather, high-resolution measurements of ocean winds, sea-level height, soil moisture, and ice/snow thickness are also welcome.
We are inviting contributions covering lower atmosphere monitoring, solar flare effects on the lower ionosphere and detection using VLF, GNSS signals and radar measurements, ionospheric effects on GNSS reflectometry retrievals as well as GNSS radio occultation retrievals and climate data records and applications of such records for climate related studies. Space weather impact studies on Earth/Space systems and infrastructures are also welcome.
All Study and Working Groups within IAG (International Association of Geodesy) Sub-Commission 4.3: Atmosphere Remote Sensing under Commission 4 “Positioning and applications” (2023 – 2027) are cordially invited to present their work. Eligible applicants (Early Carrier Scientist from low/mid economic countries) may submit their request for travel grants. For more information, please check IAG website (https://geodesy.science/iag/awards/iag-travel-award/).
On behalf of the Organizing Committee, we are pleased to invite you to attend the Workshop on GNSS Ionosphere (IWGI2026) – Remote Sensing Techniques and Applications. For any questions, or comments please feel free to contact the Local Organizing Committee (LOC) at DLR, Neustrelitz.
We are looking forward to meeting you at the IWGI2026.
Kind regards,

Dr. M Mainul Hoque (Mainul.Hoque@dlr.de)
Dr. Maximilian Semmling (Maximilian.Semmling@dlr.de)
Dr. Norbert Jakowski (Norbert.Jakowski@dlr.de)

XI Hotine-Marussi Symposium
2026-09-07 - 2026-09-11 | Genoa, Balderichgasse 31/24, Genoa, 1170, Italy
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 International Association of Geodesy (IAG).
The main goals of the Symposium are aligned with the objectives of ICCT:
• advances in theoretical geodesy,
• developments in modelling and data processing in the light of recent advances of geodetic observing systems
• interdisciplinary cooperation between geodesy and other Earth and planetary sciences
In particular, all topics related to activities of the ICCT Study Groups are of interest and submission of related papers are strongly encouraged. Contributions concerning other topics related to possible interactions and mutual benefits between geodetic theory and methodology, and other initiatives and projects involving Earth and planetary sciences (for example the Group on Earth Observation) are welcome.
Deadline for abstract submission is May 17 May 31, 2026 (11:59:59pm CEST). Upon abstract submission, the corresponding author will have to indicate the preference for oral or poster presentation. Each abstract will be reviewed by the Scientific Committee and decision on acceptance will be notified by e-mail to the corresponding author by June 30, 2026.
Accepted papers will be published by Springer in an Open Access volume of the official IAG series.
Early-bird registration: 07 12/07/2026
The Symposium will be held in the center of Genoa (Liguria Region, Italy), which is easily accessible by several bus routes and by the underground. The scientific programme will be complemented with a social one, including a tour and a social dinner. An Early Career Scientist event will be organized too.
Symposium program: https://hotinemarussi2026.unige.it/program
We look forward to warmly welcome you in Genoa!
Mattia Crespi, Amir Khodabandeh, Pavel Novák, Riccardo Barzaghi
Domenico Sguerso, Bianca Federici, Ilaria Ferrando, Paola Salmona
More Info – Event Website: https://hotinemarussi2026.unige.it/

17th European VLBI Network Symposium
2026-09-14 - 2026-09-18 | The University of Manchester, Manchester, United Kingdom
The European VLBI Network Symposium is the main forum for discussion of the latest Very Long Baseline Interferometry scientific results and technical and technological developments within the EVN member countries. The purpose of this biennal meeting is to bring together the global VLBI community to exchange knowledge, share new research, discuss advancements in VLBI techniques, and foster a collaborative community in radio astronomy. This year, for the first time, there will be a dedicated session on geodetic and astrometric VLBI.

ITGRF Workshop 2026
2026-09-14 12:00 - 2026-09-16 13:00 UTC | Herstmonceux Castle, Hailsham, East Sussex, United Kingdom,
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. It will bring together experts in absolute gravimetry, gravity monitoring, and reference frame realization to exchange knowledge and coordinate future work.
The International Terrestrial Gravity Reference Frame (ITGRF) is developed by the International Association of Geodesy and is based on accurate observations from absolute gravimeters and continuous gravity monitoring at reference stations. Its primary objective is to replace the obsolete International Gravity Reference Standardization Network (IGSN71) defined in the early 1970s with a modern, consistent global gravity reference.
The workshop will be hosted in 2026 by the British Geological Survey’s Space Geodesy Facility at Herstmonceux Castle in East Sussex, a site with a strong scientific heritage as the former home of the Royal Greenwich Observatory.

Booking/registration information is available under: https://www.eventbrite.co.uk/e/the-iag-jwg-211-workshop-for-the-development-of-the-itgrf-tickets-1986065996860
The Session plan is available here: https://share.bkg.bund.de/x/HoCpBw
More info here [PDF]

VieVS Days 2026
2026-09-15 - 2026-09-16 | TU Wien, Vienna, Austria
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 & VieSched++.
The workshop is aimed at PhD students and newcomers to the field of geodetic VLBI analysis. The registration is offered on a first-come, first-served basis. The number of participants is limited.
More info and registration here: https://vievswiki.geo.tuwien.ac.at/Webinar/VieVSWorkshop2026

Frontiers of Geodetic Science (FroGS) Conference 2026
2026-09-15 - 2026-09-17 | Messe München, Conference Center Nord, Munich, Germany
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 management. The event provides a forum for discussing current scientific developments and applications in geodesy. We welcome contributions from all areas of geodetic research, especially from early-career scientists.

IAG Commission 3 - TIGER Symposium in Geodesy
2026-09-28 - 2026-10-01 | Gävle, Sweden, Gävle, Sweden
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 1st symposium of the IAG Commission 3 on Earth Rotation and Geodynamics, in cooperation with the Journees meeting series) – September 28th to October 1st, 2026
GGOS Topical Meeting on Geohazards – October 1st and 2nd, 2026
GGOS Days 2026 – October 5th to 7th, 2026

The meetings will be in a hybrid format. More details (e.g., website, registration, abstract submission) will be shared soon. We’re looking forward seeing you in autumn 2026!
Sincerely, Rebekka Steffen (IAG commission 3 president), Laura Sanchez (GGOS President), Martin Sehnal (GGOS Coordinating Office)

GGOS Topical Meeting on Geohazards
2026-10-02 08:00 - 15:00 (Europe/Vienna) | Lantmäteriet, Lantmäterigatan 2C, Gävle, 802 64, Sweden

GGOS Days 2026
2026-10-05 08:30 - 2026-10-07 17:30 (Europe/Vienna) | Lantmäteriet, Lantmäterigatan 2C, Gävle, 802 64, Sweden

ESA 10th International Colloquium on GNSS
2026-10-07 - 2026-10-09 | École de technologie supérieure (ETS) of Quebec, Montreal, Canada
The topics of the conference include:
o Time and Frequency Principles and Novel Clock Technologies
o Scientific Aspects of Positioning and Navigation Applications
o Reference Frames and Precise Orbit Determination
o Navigation for Lunar and for Space Applications
o Scientific Opportunities enabled by GNSS and PNT systems
o Geodesy, Geophysics and Earth Sciences
o Fundamental Physics
o GNSS Remote Sensing, Reflectometry and Atmosphere Sounding
o Optical and Quantum Principles and Technologies for PNT

The abstract submission has been extended to 8 May, 2026. The selected papers will be published in Advances in Space Research.

See the website for details:
https://atpi.eventsair.com/10th-gnss-science-colloquium/

Gravity Geoid and Height Systems Symposium (GGHS2026)
2026-10-12 - 2026-10-16 | Indian National Science Academy, New Delhi, India
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 latest developments in gravity field modeling, geoid determination, height systems, and their applications in Earth sciences and society.
The next edition, GGHS2026, will continue this tradition by providing a forum for exchanging ideas, presenting new research, and fostering collaboration across the global geodetic community.

Official website: https://www.gghs2026.com/

GGHS 2026 Pamphlet [PDF]

21st Wegener Assembly, Albania
2026-10-13 - 2026-10-15 | Polytechnic University of Tirana, “Dëshmorët e Kombit”, Square “Nënë Tereza”, Tirana, 1001, Albania
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, 2026.
WEGENER meetings gather geodesists and geoscientists working in the Mediterranean, earthquake processes and geodynamics. The WEGENER meeting is supported by International Association of Geodesy (IAG) and the International Association of Seismology and Physics of the Earth’s Interior (IASPEI), through Sub-commission 3.5 “Seismo-Geodesy” joint between IAG and IASPEI.
Whether you are an established researcher, an early-career scientist, or a student, Wegener assembly offers a unique opportunity to exchange ideas, develop collaborations, and strengthen our scientific community.
The meeting will be hosted by the Institute of Geosciences part of Polytechnic University of Tirana.
Abstract submission and registration will open February,2 2026. Early-bird registration will be available until July 15, 2026. Proposed sessions are:
1. Motion and deformation of the Mediterranean: from kinematics to dynamics
2. Plate Boundary and Intraplate Processes from Geodetic Observations
3. Faults and Earthquake Cycle Processes
4. Geodesy Contribution to Seismic Hazard Assessment & Mitigation
5. Surface Processes, Hydrology, and Anthropogenic Deformation
6. Emerging Methods and Infrastructures
7. Volcano and Volcano-Tectonic Deformation
Beyond the science, Tirana offers a lively and welcoming atmosphere, with a blend of Ottoman, Italian, and modern architecture, a vibrant café culture, and easy access to Albania’s stunning landscapes from the Adriatic coast to the mountains and historical UNESCO World Heritage sites. Its central location and well-connected airport make it a really accessible and attractive destination for colleagues from all over Europe and beyond.
We warmly invite you to be part of WEGENER 21st Assembly and to contribute to advancing seismo-geodesy research in the Mediterranean and beyond.

SIRGAS Symposium 2026
2026-11-03 - 2026-11-06 | Faculty of Engineering – University of the Republic., Av. Julio Herrera y Reissig 565, Montevideo, 11300, Uruguay
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 and Earth observation.
🗓 Frequency & DurationHeld every two years, the Symposium spans four days of scientific exchange, featuring oral presentations, technical sessions, and discussions focused on both theoretical developments and practical applications.
📍 Host CityThe next edition will take place in Montevideo, Uruguay, offering a unique setting that combines scientific excellence with regional collaboration.
🔬 Main Thematic Axes

Applications of the SIRGAS Reference FrameworkPractical and scientific uses of SIRGAS in positioning, mapping, geodynamics, and geospatial infrastructure.
SIRGAS Contributions to Earth System ModellingThe role of SIRGAS in understanding Earth dynamics, including tectonics, sea level, and climate-related processes.
Development and Maintenance of the SIRGAS Reference FrameworkAdvances in GNSS networks, reference frames, standards, and long-term sustainability.
Modelling the Earth’s Gravity FieldGravity field determination, geoid modelling, and their applications in science and engineering.

🌎 Why Attend?The Symposium fosters regional integration, knowledge exchange, and capacity building, strengthening SIRGAS as the geodetic reference for the Americas.
🔗 More information and updates will be available soon on https://sirgas.ipgh.org/

AGU Annual Meeting 2026
2026-12-07 - 2026-12-11 | San Francisco, USA, San Francisco, USA
Event Category: agu
