Between January 26 and 30, 2026, the installation of forty (40) corner reflectors (CR) was successfully completed in the area surrounding the Paute Integral Hydroelectric Complex. This technical infrastructure will optimize the geometric and radiometric calibration of the SAR signal acquired by the Sentinel-1 satellite, strengthening the accuracy of surface deformation monitoring.
Infrastructure to improve interferometric accuracy
The implementation of this network of high backscatter passive reflectors increases interferometric stability and improves phase-phase coherence in InSAR/DInSAR processing. This will allow for the estimation of millimeter displacements associated with ground deformations in the area of influence of the hydroelectric complex.
Scientific methodology for spatial distribution
The location of the reflectors was defined using a methodology developed by the research team, based on multitemporal analysis of interferometric coherence. This approach made it possible to identify high, medium, and low priority areas for installation, optimizing coverage and data quality.
Collaborative work and project impact
Maurizio Mulas, Ph.D.; Diego Capa Sarango, MSc.; Nadia Lagasca Loaiza, MSc.; Astrid Ramírez López; and Pedro Ramírez Correa participated in this activity.
The completion of this phase represents a milestone in the project, consolidating the infrastructure necessary to strengthen the reliability of multitemporal interferometric analyses and geodynamic monitoring of the territory.
