As part of the St3TART-FO project (FRM for Sentinel-3 Land Altimetry), the Institute of Geodesy (GIS) has installed a mobile GNSS Interferometric Reflectometry (GNSS-IR) system along the Neckar River.
GNSS-IR is an emerging technique for monitoring water level variations using reflected GNSS signals. By analyzing the interference between direct and surface-reflected signals, the system enables the estimation of the reflecting surface height beneath the antenna, providing a cost-effective complement to conventional water-level measurements.
Within the St3TART-FO framework, GIS is establishing low-cost GNSS-IR stations at Fiducial Reference Measurement (FRM) sites along the German Rhine and Neckar rivers to support the validation of Sentinel-3 satellite altimetry observations.
The system is solar-powered, lightweight (~4.2 kg), and designed for flexible installation on existing river infrastructure.
installation on the peninsula 'Hechtkopf' at the grounds of the motor yacht club Esslingen
