Gunnar Elgered

Gunnar Elgered is a Professor at Chalmers University of Technology, specializing in space geodesy and atmospheric research. His work is centered at the Onsala Space Observatory, where he utilizes radio telescopes and Global Navigation Satellite Systems (GNSS) for geodetic and atmospheric studies. Previously serving as department head from 2000 to May 2017, he continues active research and teaching in engineering measurements with innovative examination methods.

His research focuses on:

• Space geodesy using GNSS and VLBI techniques
• Atmospheric water vapor monitoring via microwave radiometers
• Climate research through long-term GNSS data analysis
• Tropospheric delay modeling for weather forecasting improvement
• Development of error correction models for geodetic applications

Recent publications (2023–2025) demonstrate sustained leadership in atmospheric parameter assessment using co-located instrumentation at Onsala. His work shows increasing emphasis on climate model evaluation, with key contributions to GNSS interferometric reflectometry for sea level monitoring and tropospheric error modeling. The research integrates multiple geodetic techniques to address atmospheric variability and climate change impacts.

Professor Elgered actively contributes to international geodetic infrastructure through the International VLBI Service (IVS), particularly via Onsala Space Observatory's Analysis Center activities. His projects focus on enhancing geodetic observing systems for climate monitoring, including the VGOS (VLBI Global Observing System) and co-location of geodetic techniques.