Global Navigation Satellite Systems (GNSS) were initially designed for instantaneous, all-weather condition, high reliability positioning. Currently GNSS observation are applied in all science and industry solutions that require precise positioning with centimetre level accuracy in both post-processing and real time mode.

The new, emerging use of GNSS data is a remote sensing of neutral atmosphere (GNSS meteorology). The GNSS observations collected on the ground- and space-based platform provide high frequency, high quality and high spatial resolution information about troposphere conditions.

Coherently the lower atmosphere is one of the elements limiting precise positioning, especially in height component, therefore the two way link between positioning and meteorology become very important.

The GNSS & Meteorology group in Wroclaw University of Environmental and Life Sciences (WUELS) has been successfully studying the impact of the troposphere on the GNSS signal since 2000.


New paper in Journal of Geodesy
A new paper of Karina Wilgan , Fabian Hurter, Alain Geiger, Witold Rohm and Jarosław Bosy "Tropospheric refractivity and zenith path delays from least-squares collocation of meteorological and GNSS data" has been accepted in Journal of Geodesy and made available on-line in Springer web page.


4 PhD positions in GNSS meteorology and positioning
GNSS&Meteo and Institute of Geodesy and Geoinformatics are seeking 4 motivated candidates to join our research team in the field of: 1) troposphere aided positioning, 2) GNSS based troposphere monitoring, 3) troposphere tomography, 4) radio occulatation. More details are available in the following document:


Krzysztof Sośnica received START stipend and was also selected as one of the top 3 recipients
The START stipend is awarded by Foundation for Polish Science for 24th time and is granted to the most talented young scientists throughout Poland. Dr Sośnica received the stipend with distinction as “the co-author of an empirical model of orbits for geodetic satellites and programming for precise analyses of satellite observations. He is also the co-author of a conception for a research mission to Venus.” (FNP website).


EGU Outstanding Young Scientists Award 2016 in Geodesy goes to Witold Rohm
The 2016 Division Outstanding Young Scientists Award is awarded to Witold Rohm for his innovative contributions in Global Navigation Satellite System (GNSS) meteorology research, advancing our understanding of meteorological processes that impact on GNSS signals.
Official information can be found here:


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