Phase 2 / 2013 (01.2013-12.2013)
During the 2013 phase, the general objective was to identify and validate the recent ground deformation at the city level based on high resolution satellite interferometric analysis, using PS-InSAR. Due to the radical financial reduction in expenditure during the 2013 phase, the project was restricted to three main activities, achieved mainly through voluntary work of all project team members: GNSS monitoring, interferometric analyses and the applicability of new digital representation methods, which can be used for risk evaluation in urban areas.
The GNSS data string measurements represent benchmarks for calibration and validation of satellite radar processing. The calculations were performed using the static method for 12 points situated in the area of maximum interest. Field measurements were attended by all the members, and collaborating partners from the Faculty of Geodesy, Technical University of Civil Engineering Bucharest, with their own equipment. Two vehicles, six GPS receivers and media for each device were used for the measurements. Data from GPS measurements were processed using the Topcon Tools application.
PhD. Eng. Marius Necsoiu continued the interferometric analysis of subsidence movements using new data sets. There were 21 images available during this phase, a precondition for the possibility of PSI (Persistent Scatterer Interferometry) processing.
Another direction implemented by Researcher Maria Bostenaru Dan during the 2013 phase was to investigate the potential of digital methods to represent urban disasters, with applicability for risk analysis. These avenues of research brought an addition to the 2012 diachronic approach, which was based on the interpretation of historical maps.