Paris, France, 23-25.06.2026
| Report on the Symposium of the IAG Subcommission for Europe (EUREF) held in Paris, France, 23-25 June 2026 |
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| June 23 |
| Tutorial - Quantum gravimetry Sébastien Merlet |
| Tutorial - Chronometric Geodesy: Atomic clocks for levelling Rodolphe Le Targat click to see file |
| Tutorial - Atomic clocks : application at IGN France Olivier Jamet click to see file |
| Opening Session |
| 1.01 - Keynote speech F. Perosanz |
| 1.02 - Collaborations and sustainability M. Lidberg and L. Huisman |
| 1.03 - Galileo and EGNOS Performance Monitoring - Contributions from National Mapping Agencies H. Koivula |
| 1.04 - The Galileo High Accuracy Service (HAS): Performance Assessment within the GEMOP Initiative A. Fantoni |
| 1.05 - Sponsor speech - SATINFO click to see file |
| 1.06 - Collaborations and sustainability M. Lidberg and L. Huisman |
| 1.07 - GRF Europe - Bridging Regional Geodetic Expertise and Global Geodesy Governance J. Verbeurgt |
| 1.08 - Collaborations and sustainability - round table |
| 1.09 - Open poster session and National Reports A. Araszkiewicz and X. Collilieux |
| 1.10 - Open poster session and National Reports - Discussions & Drinks A. Araszkiewicz and X. Collilieux |
| 1.11 - National Report of Austria H. Titz |
| 1.12 - National Report of Estonia K. Kollo |
| 1.13 - Geodesy Cartoons: Visualizing Geodesy for Everyone H. Titz |
| 1.14 - National Report of Portugal H. Ribeiro |
| 1.15 - Towards an update of the French vertical maritime reference surfaces N. Portier |
| 1.16 - National Report of Poland K. Kalinczuk-Stanałowska and A. Mielczarczyk |
| 1.17 - Real-Time GNSS Monitoring System for Poland (RTGMS) K. Kalinczuk-Stanałowska |
| 1.18 - National Report of Spain M. G. Hidalgo |
| 1.19 - Great Britain National Report M. Greaves |
| 1.20 - Swiss Terrestrial Reference Frame CHTRF2022 L. Prange |
| 1.21 - Modern Geodetic Reference Frame of Albania B. Oltjon |
| 1.22 - National Report of Finland P. Häkli |
| 1.23 - From Service to Reference Frame: The Role of SWEPOS Post Processing Service in SWEREF 99 K. Ebuy Abraha et al. |
| 1.24 - National Report of Belgium J. Verbeurgt |
| 1.25 - National Report of Slovenia K. Medved |
| 1.26 - Geodetic Observations and Geopotential Determination for the Optical Clock at BEV H. Titz |
| 1.27 - CEGRN meeting (Marcoux - Paris Cité University) - hybrid |
| June 24 |
| 1.28 - Collaborations and sustainability M. Lidberg and L. Huisman |
| 1.29 - Report from IGS Workshop R. Dach |
| 1.30 - EPOS-GNSS products and consistency between the different solutions A. SOCQUET |
| 1.31 - Activities of the EUREF Governing Board C. Bruyninx and W. Söhne |
| 1.32 - Report on the Activities of the EUREF Governing Board W. Soehne |
| 1.33 - Current Status of the EUREF Permanent Network and Progress on EUREF Resolutions C. Bruyninx et al. click to see file |
| 1.34 - EPN Analysis Centres Coordinator Report T. Liwosz and A. Araszkiewicz click to see file |
| 1.35 - Activities of the EUREF Governing Board C. Bruyninx and W. Söhne |
| 1.36 - Report of the EPN Troposphere Coordinator R. Pacione click to see file |
| 1.37 - Enhancement of the EUREF reference frame solution thanks to the EPN-Repro3 J. Legrand and C. Bruyninx click to see file |
| 1.38 - EPN Densification: status and challenges after repro3 A. Kenyeres et al. click to see file |
| 1.39 - EPND/CEGRN Analysis Hub J. Zurutuza et al. click to see file |
| 1.40 - Sponsor speech Leica Geosystems click to see file |
| 1.41 - Sponsor speech Teria |
| 1.42 - Group picture - gather at the reception area |
| 1.43 - Activities of the EUREF Governing Board C. Bruyninx and W. Söhne |
| 1.44 - EUREF-IP Real-time Data: Current Practice, Challenges, and Future Perspectives L. Huisman et al. click to see file |
| 1.45 - NTRIP-catalog - identify the Coordinate Reference System J. Jimenez Shaw click to see file |
| 1.46 - EUREF Study Group on alternatives to ETRS89 X. Collilieux et al. click to see file |
| 1.47 - Status report on the UELN: update on available data and schedule for the publication of a new EVRF T. Bauer et al. click to see file |
| 1.48 - Status report for the EUREF Working Group “European Unified Height Reference” J. Schwabe et al. click to see file |
| 1.49 - National and Local Activities K. Kollo and B. Garayt |
| 1.50 - A contribution to the EPN Densification from Germany: Preliminary Results D. De Louw |
| 1.51 - National and Local Activities K. Kollo and B. Garayt |
| 1.52 - Towards Consistent Reference Frame Realizations: GNSS Reprocessing in Luxembourg, Belgium, and the Netherlands H. De Ligt |
| 1.53 - Updating the Spanish national reference frame: A reprocessed ETRF2000 solution based on ITRF2020 E. Azcue |
| 1.54 - Lantmäteriet's Strategy for Geodesy 2026–2035 T. Kempe et al. click to see file |
| 1.55 - Status report from the project to compute the new Serbian quasigeoid model SQM2026 J. Ågren |
| 1.56 - Status report on the installation and testing of InSAR radar reflectors in Denmark A. Meister click to see file |
| 1.57 - Towards the GNSS-InSAR integration in the Hungarian geodetic infrastructure A. Kenyeres click to see file |
| June 25 |
| 1.58 - National and Local Activities - National reports K. Kollo and B. Garayt |
| 1.59 - National report of Lithuania O. Jokubas and V. Gediminas |
| 1.60 - National Report of Romania M. Dulea-Flueras |
| 1.61 - National report of Serbia F. Kostadinovic and V. Nikolic click to see file |
| 1.62 - National report of Slovakia M. Ferianc et al. click to see file |
| 1.63 - National Report of Switzerland A. Villiger |
| 1.64 - National Report of the Czech Republic J. Reznicek et al. click to see file |
| 1.65 - National Report of The Netherlands B. Alberts |
| 1.66 - National Report of Germany W. Soehne |
| 1.67 - National report of France J. de Oliveira Pinheiro click to see file |
| 1.68 - National and Local Activities - National reports K. Kollo and B. Garayt |
| 1.69 - Discussion about ETRS89 alternatives |
| 1.70 - Advancing Geodesy with EUREF: Research, Innovation and Future Perspective J. Legrand and J. Schwabe |
| 1.71 - Genesis: ESA's unique future geodetic satellite mission G. Fusco |
| 1.72 - IGS LEO-PNT Pilot Project: Preparing Geodetic Infrastructure and Products for Future LEO-PNT Integration L. Massarweh and F. Gini click to see file |
| 1.73 - Advancing Geodesy with EUREF: Research, Innovation and Future Perspective J. Legrand and J. Schwabe |
| 1.74 - Impact of electromagnetic interferences on geodetic GNSS receivers: A comparative analysis among GPS, GLONASS, Galileo and BeiDou M. Gianniou click to see file |
| 1.75 - Multi-Source Fusion for Real-Time GNSS Interference Detection, Spoofing Classification, and Predictive Forecasting on a National CORS Infrastructure M. Dulea-Flueras |
| 1.76 - Multi-GNSS Analyses in the Time and Frequency Domains J. Zurutuza et al. click to see file |
| 1.77 - An Automated Platform for GNSS Processing and Time-Series Analysis in a Complex Geodynamic Region D. Anastasiou et al. click to see file |
| 1.78 - CEGRN Status as of 2026 J. Zurutuza et al. click to see file |
| 1.79 - Preliminary GNSS Station Analysis and ETRFxx-Aligned Residual Velocity Assessment towards deformation modeling in Southern Iberia J. Antonio Tarrío |
| 1.80 - Advancing Geodesy with EUREF: Research, Innovation and Future Perspective J. Legrand and J. Schwabe |
| 1.81 - The Future Datacenter: Motivation and Vision of the newly installed IGS Workinggroup on Data Architecture H. Titz et al. click to see file |
| 1.82 - Towards land and sea vertical unification thanks to hydrodynamic levelling J. Chenal et al. click to see file |
| Closing session W. Söhne |
| Happy hour at IGN (Géoroom, IGN headquarters) |
| Posters |
| P.01 - National Report of Austria F. Blauensteiner et al. click to see file |
| P.02 - National Report of Estonia K. Kollo and J. Metsar click to see file |
| P.03 - Geodesy Cartoons M. Sehnal click to see file |
| P.04 - National Report of Portugal H. Ribeiro et al. click to see file |
| P.05 - Towards an update of the French vertical maritime reference surfaces N. Portier et al. click to see file |
| P.06 - National Report of Poland K. Kalinczuk-Stanałowska and A. Mielczarczyk click to see file |
| P.07 - RTGMS - Real-time GNSS monitoring system for Poland click to see file |
| P.08 - National Report of IGE Spain M. Hidalgo et al. click to see file |
| P.09 - National Report of Great Britain M. Greaves et al. click to see file |
| P.10 - Modern Geodetic Reference Frame of Albania Phd. Kristaq et al. click to see file |
| P.11 - National Report of Finland P. Häkli et al. click to see file |
| P.12 - From Service to Reference Frame - SWEPOS-PPS in the Realization of SWEREF 99 K. Abraha et al. click to see file |
| P.13 - National Report of Belgium J. Verbeurgt et al. click to see file |
| P.14 - National Report of Slovenia K. Medved et al. click to see file |
| P.15 - Geodetic Observations and Geopotential Determination for the Optical Clock at BEV F. Blauensteiner et al. click to see file |
| P.16 - Swiss Terrestrial Reference FrameCHTRF2022 L. Prange et al. click to see file |
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