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IGS 2026 Workshop

Chile – where the crust trembles daily and even a traditional cocktail is nicknamed the “Earthquake” – became the epicenter of an unprecedented scientific gathering in South America.

From 1 to 5 June 2026, the IGS Workshop 2026 brought the GNSS and geodesy community to Santiago (Chile).

Organized by the University of Santiago de Chile (USACH) with the Military Geographic Institute (IGM), the workshop showcased the latest breakthroughs of the International GNSS Service (IGS).

Welcoming Remarks
Dr. Mohammad Ayaz Alam General Remarks
Dr. Carlos Yévenes ORTEGA Vice-Rector, University of Santiago de Chile
Dr. José Antonio TARRÍO Local Organising Committee Chair, University of Santiago de Chile
Col. Pedro Castillo FIGUEROA Director, Military Geographic Institute of Chile
Col. Gustavo CAUBARRÈRE Scientific Organising Committee Chair, SIRGAS President, Military Geographic Institude of Uruguay
Dr. Rolf DACH IGS Governing Board Chair
Closing Remarks
Mr. Claudio Rodrigo Herrera JARPA Vice Rector, University of Santiago de Chile
Dr. José Antonio TARRÍO Local Organising Committee Chair, University of Santiago de Chile
Dr. Rolf DACH IGS Governing Board Chair
Mr. Satoshi KOGURE JGX collaborator (GSI/JAXA)

Presentations / Videos

Session 1: GNSS Infrastructure and Data Integrity in a Multi-Constellation Era
Dr. Rui FERNANDES Metadata Harmonization of GNSS Data Repositories
Dr. Oliver BOCK The Critical Role of GNSS Metadata in Ensuring Homogeneous Time Series for Geophysical Applications
Prof. João Francisco Galera MONICO The legacy of the INCT GNSS NavAer: historic, infrastructure, and data set
Dr. Satoshi KAWAMOTO Modernizing Multi-GNSS data pre-processing tools: RINGO and RNXCMP Updates with RINEX 4.02 format compatibility
Dr. Mara FIGUEROA GeoDE: the Geodesy Database Engine for GNSS Data Processing, Management, and Trajectory Analysis
Mr. Markus BRADKE A Cloud-Native GNSS Data Lakehouse for Scalable Ingestion, Processing, and Analysis
Session 2: From Orbits to Reference Frames: Advances in GNSS Processing
Dr. Maciej KALARUS Experimental CODE products based on GPS L1/L5 signals
Prof. Krzysztof SOSNICA Improving GNSS positioning by clock constraints
Mr. Mederic GRAVELLE Comparison of GPS-only and Galileo-only ambiguity-fixed PPP solutions: insights from the SPOTGINS analysis center
Prof. Jianghui GENG Consistent in-orbit calibration of all-frequency BDS-3 satellite antenna phase centers and their implications for the terrestrial reference frame scale
Dr. Erik SCHÖNEMANN ESA Code Bias Reference Frame
Prof. Jing GUO BDS-3 high-accuracy products based on modernized B1C and B2a signals: the thread of pilot-mixed channel and signal distortions biases
Dr. Georgia KATSIGIANNI IDEFIX: An algorithm for the comparison and validation of fixed ambiguities
Dr. Clément GAZZINO GNSS satellite hardware biases stability over time: long term analysis of the products from several analysis centers and impact from flex power
Dr. Jiang GUO Continuous and multi-GNSS IPPP link for UTC
Mr. Bingbing DUAN Toward a standardized GNSS satellite attitude modeling framework
Prof. Thomas HERRING IGS ACC Transition and Development of Multi-GNSS Operational Products
Mr. Kyohei AKIYAMA Precise Orbit Determination of QZSS Satellites Integrated with LEO Onboard GNSS Observations
Mr. Ivan Sermanoukian MOLINA Making it COOL: Enhancing ESA’s Combination at the Observation Level
Dr. Athina PEIDOU Integrating Four Space Geodetic Techniques for Terrestrial Reference Frame Recovery
Dr. Francesco GINI Genesis: Status and performance analysis of the GNSS instrument
Dr. Rolf DACH ESA’s Genesis mission: Implications for the IGS GNSS analysis
Dr. Radoslaw ZAJDEL Three Decades of GNSS-Derived Geocenter Motion
Dr. Zhigui KANG Earth’s Gravitational Coefficient GM and Geocenter Motion Determination using LEO GPS Data
Dr. José Antonio Tarrio MOSQUERA Time-Dependent GNSS Reference Frames in Tectonically Active Regions: The ADELA Approach within SIRGAS
Session 3: Real-Time GNSS Services and Next-Generation Positioning
Dr. Ningbo WANG CAS real-time multi-GNSS clock and bias estimation: new product streams for precise point positioning with ambiguity resolution
Dr. Yize Zhang Real-time multi-GNSS orbit and clock combination at SHAO
Mrs. Mónica Zabala HARO SIRGAS Regional Experimental Caster: Architecture, Operation and Perspectives for Real-time GNSS Services
Dr. Lotfi MASSARWEH Analysis of uncertainty information of real-time SSR corrections from a regional network and impact on PPP-AR
Prof. Jianghui GENG One-Hz real-time multi-GNSS satellite phase clocks for global rapid geohazard response
Dr. Lucie ROLLAND Strengthening Pacific Tsunami Early Warning through GNSS: Insigts from Kamchatka 2025 event and the GeTEWS Oceania Initiative
Session 4: GNSS as a Sensor of the Atmosphere and Space Weather
Prof. Benedikt SOJA Probabilistic Neural Networks for Tropospheric and Ionospheric Delays with Calibrated Uncertainties in GNSS Positioning
Dr. Adam CEGLA Deep learning-based GNSS tomography for high-resolution tropospheric monitoring
Dr. Ningbo WANG RT-FAIRS: Real-time Factor-Adjusted Ionospheric Residual Statistics approach for generating accuracy information in Global Ionospheric Maps
Dr. Haobo LI Recent Advances in Ground-based GNSS Atmospheric Monitoring: New Datasets, Innovative Methodologies, and Emerging Applications
Dr. Benjamin REID Real-Time Ionospheric Products from the TOMIRIS Data Assimilation Model
Dr. Adam FROŃ Assimilation of Climate-Scale TEC Maps, Low-Latency GNSS Products, and Auroral Oval in the IGS-IRI Cooperation
Dr. Oliver BOCK Assessing and improving the accuracy of GNSS tropospheric products for climate research
Prof. João Francisco Galera MONICO Assessment of Climate Variability and Extreme Events Using GNSS-Based PWV
Dr. Iurii CHERNIAK IGS ROTI Maps: 10+ years of operational history, current status, and perspectives
Prof. Shuli Song Ionosphere Research Activities at SHAO
Dr. Manuel BRAVO Using GNSS TEC Monitor Ionospheric Responses to Solar Eclipses
Dr. Juan VALDIVIA Spatial correlations between GNSS derived TEC and position errors for geophysical applications
Dr. Prof João Francisco Galera MONICO Monitoring Ionospheric Irregularities in Brazil Using Multifrequency and Multiconstellation GNSS Data
Session 5: GNSS for Socient: Geohazards, Climate Change, Sustainability and Beyond
Dr. Manuel BRAVO GNSS-Based Detection of Ionospheric Disturbances Associated with Earthquakes, Tsunamis, and Volcanic Eruptions
Dr. Jacek PAZIEWSKI Exploring the potential of smartphone GNSS and accelerometer observations for displacement monitoring
Ms. Priscila CAMELO Altimetric and geometric performance assessment of GNSS RTK on an EDM calibration baseline
Mr. Mauricio LOYOLA GNSS and GIS Integration for Climate Risk Projection in Central Chilean Basins
Mr. Jaime Alberto Soto REYES GNSS Data Collection and Geospatial Analysis for Wildfire Management

Posters

Session 1: GNSS Infrastructure and Data Integrity in a Multi-Constellation Era
Mr. Basara MIYAHARA IGS Analysis Center “JGX” – Evaluation of Products Performance
Dr. Laurent JOLIVET Monitoring Emerging Galileo Services through the REGINA GNSS Global Network
Mr. Markus RAMATSCHI Recent Developments in GFZ’s GNSS Contributions: Network, Realtime, and the GIPP Instrument Pool
Mr. Emi IMADA Overview of MADOCA: Architecture and Recent Developments
Mr. Ivan Sermanoukian MOLINA EGON: The ESA/ESOC GNSS Observation station Network
Dr. Lei MU Autonomous Time Synchronization and Reference Maintenance in LEO Satellite Constellations
Dr. Eric SCHÖNEMANN GSSC: GNSS Science Support Centre – ESA’s IGS Global Data Centre
Prof. Dr. Andrea de SEIXAS GNSS Data Robustness and Resilience: The Recife Multi-GNSS Experimental Nucleus for Autonomous Assessment of PNT Service Performance, Integrity and Continuity
Prof. Dr. Andrea de SEIXAS Technological Evolution of a GLONASS Ground Segment Station Located in Recife, PE, Brazil
Mr. João Pedro Voltare ZAUPA Stability and Convergence Gains from Multi-Constellation GNSS in Precise Point Positioning Using 2 Hz Data
Prof. João Francisco Galera MONICO Assessing the Quality of IGS Finals and Rapid Products via PPP-AR Derived Solutions
Mr. Aleksandr SPESIVTSEV Cloud-based GNSS data processing at GeoNet: Navigating the migration
Session 2: Building Global GNSS-Based Reference Frames
Dr. Rolf DACH Activities at the CODE Analysis Center
Dr. Cyril KOBEL Advancing Zero-Difference GNSS Processing for Operational Use at Center for Orbit Determination in Europe (CODE)
Dr. Elmar BROCKMANN Quality Monitoring of Multi-GNSS Product Series at the CODE Analysis Center
Mr. Simon BANVILLE Next-Generation GNSS Precise Orbit Determination (POD) Software for the EMR Analysis Center
Dr. Francesco GINI ESA IGS Analysis Centre – Status Update
Dr. Benjamin MÄNNEL Recent Developments of EPOS software at GFZ: GNSS and LEO integrated data processing
Mr. Sylvain LOYER CNES/CLS IGS Analysis Center 2024/2026 Activities
Dr. Paul RIES Testing new Empirical SRP Models at the JPL IGS Analysis Center
Mr. Phillip MCFARLAND Genetic Algorithm Optimization of GNSS Ground Tracking Networks for Orbit Determination
Dr. Weijie TAN GNSS Determination of EOP at 12-Hour Resolution
Dr. Radoslaw ZAJEL Beyond Constellations: Revealing Natural Satellite Groups in Multi-GNSS Landscape
Mr. Julien BARNÉOUD Midnight discontinuities in repro3 orbits: what can we learn about solar radiation pressure mismodeling?
Dr. Chao YANG Contribution of BDS-3 Inter-Satellite Links to Geocenter Motion Derived from GNSS
Prof. Xiaoya WANG GRACE-FO Real-Time Precise Orbit Determination with Onboard GPS and Inter-Satellite Ranging Measurements Based on DIA Quality Control Algorithm
Prof. Song YEZHI Precise Orbit Determination and Spacetime Transformation for Autonomouse Navigation in the Near-Moon Space
Dr. Bin WANG Developing a time-scale for multi-GNSS clock products
Dr. Erik SCHÖNEMANN An Update on Genesis Mission Status
Mr. Satoshi ABE Initiative for Estimating the QZSS Reference Frame
Dr. Sharyl BYRAM Status of the IERS Conventions Updates
Dr. Paul REBISCHUNG pytrf: A Python toolbox for the analysis of time series and terrestrial reference frames
Dr. Paul REBISCHUNG Generating realistic synthetic GNSS station position time series to evaluate automatic discontinuity detectors
Dr. Benjamin MÄNNEL Impact of surface loading deformation on GNSS products
Dr. Peng FANG Intra-frame deformation model (IFDM) for the Western U.S.
Dr. José Antonio Tarrio MOSQUERA Application of IGS Products to the Development of Kinematic Reference Frames in Seismically Active Regions: The SIRGAS-CON Network
Mr. David Alexander Cisneros REVELO SIRGAS Ecuador Geodetic Reference Frame ITRF 2020, VEC EC 2025 Velocity Field
Session 3: Real-Time GNSS Services and Next-Generation Positioning
Ms. Andrea STÜRZE Developments within the IGS-Real-Time Services towards PPP-AR
Mr. Elyes HASSEN From IGS Products to User Solutions: Canada’s CSRS-PPP Service
PhD. Felipe Carvajal Rodriguez Trimble’s support for modernized datums in Chile, validated through GNSS Precise Point Positioning
Miss Beata MILANOWSKA Exploring the current accuracy of the multi-GNSS SPP solution for mass-market applications
Dr. Pavel VACLAVOVIC Assessment of the Galileo High Accuracy Service in real time based on observed data
Dr. Maria Fernanda CAMISAY Experimental study of real time multi-constellation PPP, applied to SIRGAS GNSS stations in Uruguay
Mr. Jakub BIALAS Multi-GNSS clock combination with refined clock alignment and code-phase bias integration for Precise Point Positioning
Session 4: GNSS as a Sensor of the Atmosphere and Space Weather
Dr. Guergana GUEROVA GNSS severe weather monitoring in Southern Europe: progress and prospects
Dr. Katarzyna STEPNIAK Assessment of tropospheric parameter estimation using the Centipede-RTK low-cost GNSS network in a mountainous area
Mrs. Jorge Francisco Hernández INOSTROZA Snow accumulation and ablation patterns estimated using GNSS-IR in the Mocho-Choshuenco volcanic complex, Southen Andes
Dr. Maria Fernanda CAMISAY Long-Term Analysis of SIRGAS ZTD Time Series for Early Anomaly Detection
Mr. Wilder Jaime Calderon MONTOYA VTEC Forecasting Using Machine Learning Under Varying Geospace Conditions
Mr. Ivan KHRIPUNOV Real-time local ionospheric model based on double-differenced phase-derived STEC observations
Prof João Francisco Galera MONICO Strategies to counter scintillation in challenging GNSS PPK operational scenarios
Dr. Adam FROŃ A flexible combination strategy for IGS Global Ionospheric Maps using DORIS observations
Dr. Benjamin MÄNNEL GNSS Remote Sensing: Recent activities and novel developments at GFZ
Session 5: GNSS for Society: Geohazards, Climate, Change, Sustainability and Beyond
Dr. Maciej KALARUS LEO activities at AIUB
Dr. Henry MONTECITO Evaluating the performance of Precipitable Water Vapor obtained from GPS for drought detection in Central Chile
Dr. Patrycja WYSZKOWSKA Msplit estimation as an alternative approach for GNSS baseline adjustment in networks affected by outliers
Mrs. Gabriela Herrera MALIG Characterizing earthquakes from their GNSS-TEC response multiplets
Mrs. Beatriz Barbosa Implementation and Analysis of a GNSS Geodetic Network for Land Regularization in Agrarian Reform Areas: Case Stufy of the Jacaré Settlement Project, Pará, Brazil
Prof. Dr. Andrea de SEIXAS Geodetic heights determination of inaccessible points to GNSS signals using eccentric stations at the Historic Site of Olinda, Brazil
Dr. Jan Dousa Monitoring effects of flooding of closed mines using GNSS and absolute gravimetry
Mr. Jaime Alberto Soto REYES Application of High-Precision GNSS for Archaelogical Documentation and Spacial Analysis in GIS Environments
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