ACTIVITY

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.