Ricerc@Sapienza

The goal of this project is to update and widen the presently available Sapienza Geodetic Infrastructure. This infrastructure, consisting in a Global Navigation Satellite System (GNSS) permanent station, equipped with meteo station and atomic clock, was installed about 20 years ago, in the early 2000's, thanks to a dedicated fund for University infrastructure granted to a project leaded by Prof. Mattia Crespi. The proposed improvements are related: to the update of the GNSS receiver to the state-of-the-art; to add two more space geodesy techniques, Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) and Geodetic Synthetic Aperture Radar (G-SAR) with active reflectors on the ground, both not installed in Italy yet; to add a second GNSS permanent receiver dedicated to ionosphere sounding; to install an ad hoc device dedicated to high accuracy simulations of long term displacements, to understand the true accuracy potential of each installed space geodesy technique. The achievement of this goal will enable Sapienza to strengthen the participation to international initiatives for Earth observation, sustainability monitoring, and anthropic and natural hazards prevention and management, naturally including the realization and maintenance of the global and national reference frames, in the line of the activities promoted by the United Nations Subcommittee on Geodesy, established within the United Nations Initiative on Global Geospatial Information Management in 2017.