Precise Point Positioning for Geodynamics

English Abstract:

Precise Point Positioning is a Global Navigation Satellite System technique that allows the determination of centimeter-level coordinates in an Earth-Centered, Earth-Fixed frame using observations collected by a unique receiver. It requires external information, namely, satellite orbit and satellite clock offsets of better quality than the ones broadcast by the navigation message. It has found tremendous use in the last 10 years, and remains a topic of great development potential. One of the applications is in geodynamic studies. This presentation overviews the principles of PPP and discusses its application for crustal deformation modelling. A full case study will be presented and results compared to geophysical and geometric models.