I2GPS (Integrated Interferometry and GNSS for Precision Survey) is a project that aims at developing a novel, integrated approach to the use of synthetic aperture radar interferometry (InSAR) and GNSS for use in the monitoring of subsidence, tectonic changes or other environmental hazards, which can only be identified by millimetre-precision surveying techniques.

I2GPS is supported by the European Union in its Seventh Framework programme (FP7-GALILEO-2008-GSA-1, Project No. 248181). The I2GPS consortium is composed of Systems Engineering and Assessment Limited (prime contractor), Delft University of Technology, Geological Survey of Slovenia, Septentrio Satellite Navigation NV, Société d’Applications Technologiques de l’Imagerie Micro-Onde SA, Linwave Technology Limited, and Fugro NPA Limited.

Further details about this project can be found on the webpage of the European GNSS Supervisory Authority (GSA).