Deformation Watch

Satellite InSAR data detects millimeter-scale ground movement at construction sites, enabling proactive mitigation of subsidence, settlement, and structural risks.

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How does it work?

Construction projects often face ground movement risks like subsidence and settlement that can compromise safety and schedules. InSAR provides high-resolution, frequent deformation measurements over large areas without ground sensors, enabling timely risk management and cost savings.

Millimeter Precision: InSAR measures ground displacement down to millimeter accuracy, ensuring early detection of critical movements. This precision supports detailed analysis of settlement trends and potential hazard zones.
Wide Area Coverage: Satellite InSAR routinely surveys tens to hundreds of square kilometers in a single acquisition. This broad coverage allows simultaneous monitoring of entire construction zones and adjacent infrastructure.
Frequent Monitoring: Regular satellite revisit cycles deliver deformation updates every days to weeks depending on the constellation. Frequent insights highlight evolving trends and enable rapid response to emerging issues.
Risk Mitigation: Early identification of abnormal ground shifts prevents structural failures and costly rework. Project teams can prioritize inspections and reinforcement measures based on real data.
Cost Efficiency: InSAR eliminates the need for extensive ground sensor networks and manual surveys, reducing labor and equipment expenses. Automated processing pipelines deliver actionable reports with minimal operational overhead.
Integration Friendly: Deformation maps and time series easily import into GIS and BIM platforms for unified project management. APIs and standard geospatial formats support seamless data exchange with existing workflows.

Frequently asked questions

Have a different question and can’t find the answer you’re looking for? Reach out to our support team by sending us an email and we’ll get back to you as soon as we can.

How does InSAR compare to traditional leveling surveys?: InSAR offers non-contact, wide-area deformation measurements without installing physical benchmarks. While leveling surveys provide point-specific accuracy, InSAR covers entire sites rapidly and cost-effectively.
Why is InSAR popular for construction monitoring?: Construction teams value InSAR for its ability to detect subtle ground shifts before visible damage occurs. Its scalability and remote sensing approach minimize site disruptions and resource demands.
What are InSAR limitations?: Dense vegetation, water surfaces, or steep terrain can reduce radar coherence and degrade measurement quality. Atmospheric disturbances may introduce noise, which requires filtering and expert validation.
Are there alternatives to InSAR for deformation monitoring?: Alternatives include GNSS networks, tiltmeters, and ground-penetrating radar, which offer complementary point measurements. However, these methods often require on-site installation and cover smaller areas.
How frequently can InSAR data be acquired?: Data frequency depends on the satellite constellation; typical revisit times range from 1 to 12 days. Commercial constellations can provide sub-weekly or even daily acquisitions for critical projects.
Can InSAR detect deep underground movements?: InSAR primarily senses surface deformation but can infer subsurface processes indirectly through surface displacement patterns. Combining InSAR with geotechnical models enhances interpretation of deep movements.

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