InSAR for mapping geohazards

• Get up-to-date information on ground subsidence or uplift with millimeter accuracy, scalable and tailored to your needs
• Assess geotechnical risks from terrain deformations and their current and potential impacts during the preparation phase of your project
• Continuously evaluate geotechnical risks and impacts on structural stability during implementation and after project completion
• Leverage our experience in numerous interferometry application areas

We employ multi-temporal satellite interferometry to detect subtle terrain shifts with millimeter accuracy. This technology allows us to identify changes such as tilts and stresses in the soil that can have serious consequences, including increased risk of flooding, solifluction, and structural damage to buildings, infrastructure, and utilities.

From our mapping and monitoring, we derive key spatial and temporal indicators that provide a deeper understanding of the causes, characteristics, and both ongoing and potential impacts of terrain deformations.

With a sufficient density of detected reflectors, we perform geospatial analysis to define not only the extent of subsidence basins and their rates of subsidence but also other relevant metrics such as differential subsidence, tension, and compression zones.

• Prevent damage by pinpointing high-risk areas and through timely remediation
• Decide on the most suitable stabilization solution based on comprehensive analysis of archival and current data
• Continuously evaluate the stability of slopes or entire areas using our proactive monitoring results

We map landslides and landslide susceptibility holistically, combining satellite data with other Earth observation techniques and machine learning. Using advanced change detection methods, we investigate the areal and temporal extent of landslides. Archival satellite images allow us to analyze the occurrence and impact of landslides from previous years. InSAR techniques then help us examine the rate and stages of deformation.

We deliver mapping results as a product or use them to model land susceptibility to landslides. Stability analyses based on more complex constitutional models are carried out in cooperation with external experts. The results from these models are then used for multi-factor risk assessments, which include vulnerability factors and exposure of populations or infrastructure to landslides.