The storm surge at Cedar Key, Florida from Hurricane Helene measured by a tide gauge and from GNSS-Interferometric Reflectometry

oh no...............!

Global Navigation Satellite Systems, GPS, Galileo, Glonass and Beidou

graph of Danube river levels derived from GNSS-IR

Who would have thought a GNSS antenna sitting on the top of the Budapest University of Technology and Economics building could be used to produce a time series of the Danube river levels.