NSG2025 Short Course

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The following Shortcourse have been scheduled for 7 September 2025.

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Short Course 1 Satellite InSAR Data: Monitoring from Space

Date:

7 Sep 2025

Time:

09:00 -17:00 CEST

Room:

TBC

Instructor

Alessandro Ferretti

Course Description

Level: Foundation

Satellite radar data are revolutionizing how we monitor and understand surface deformation. From mapping earthquake impacts with routinely generated co-seismic deformation maps to ensuring compliance with evolving environmental regulations, radar measurements are proving indispensable across a wide range of applications. This is because radar technology offers the unparalleled ability to remotely measure tiny surface displacements – down to millimeters – across vast areas and over extended periods, eliminating the need for costly and time-consuming ground-based monitoring. However, many geoscientists and engineers are unfamiliar with how radar sensors orbiting the Earth can measure ground displacements of a fraction of a centimeter. This course bridges that gap, providing a step-by-step introduction to satellite radar sensors, SAR imagery, SAR interferometry (InSAR), and advanced InSAR techniques.

Course Outline

Here’s a glimpse into the applications you’ll explore:

  • Subsidence Monitoring: From identifying subtle ground sinking in coastal regions and urban centers to monitoring the stability of critical infrastructure like dams and bridges, InSAR provides crucial insights for risk assessment and mitigation.
  • Landslide Mapping and Monitoring: Learn how InSAR can detect subtle ground movements, enabling proactive hazard mapping and monitoring of unstable slopes.
  • Energy Applications: Discover how InSAR contributes to safer and more sustainable energy practices. Monitor caprock integrity in carbon storage sites (CCS), track ground deformation related to underground gas storage (UGS), and provide useful information in geothermal energy projects.
  • Oil and Gas Reservoir Monitoring: Explore how InSAR data can be used to monitor reservoir dynamics, track fluid extraction and injection processes, identify potential subsidence or uplift, and assess risks to well integrity.
  • Mining Area Monitoring: InSAR plays a crucial role in ensuring the safety and sustainability of mining operations. It helps monitor surface deformation around open-pit mines and underground workings, assess the stability of tailings dams and waste piles, and mitigate risks associated with subsidence and slope instability.

Beyond the fundamentals, this course delves into:

  • Historical InSAR Archives: it will be shown how extensive archives of SAR imagery, dating back to 1992, can enable the investigation of long-term deformation trends and historical ground behavior.
  • The Future of InSAR: you will get a glimpse into the latest advancements in InSAR technology, including new satellite missions with enhanced capabilities and cutting-edge data integration and visualization techniques.
Schedule
9:00 Welcome & Vision: The InSAR Revolution
09:15Decoding the Earth's Pulse: The Science of Seeing the Invisible
- What is SAR and what makes it unique? Comparison with optical imagery.
- The "magic" of phase, coherence, and interferograms explained intuitively.
- How to read a SAR interferogram: range variations, atmospheric disturbances and noise. The importance of temporal and geometrical baseline values.
11:00Coffee Break & Networking
11:20From Raw Data to Real-World Insights: The InSAR Workflow
- A practical guide to the InSAR processing chain: the basic blocks.
- Why do we need a multi-interferogram approach?
- Combination of different InSAR data-stacks: towards 3d displacement vectors.
- Precision assessment. InSAR data validation and integration.
13:00Lunch Break
14:00Your Eyes in the Sky: Accessing the Global Satellite Constellation
- An overview of the key satellite SAR missions available for civilian use
- Open vs. Commercial Data: What to use, when, and how to get it.
14:15Application Showcase I: Safeguarding Critical Infrastructure & Urban Environments
- Structural Health Monitoring: Proactively monitoring the stability of bridges, dams, and large buildings. Lifeline monitoring.
- Urban Planning & Smart Cities: Tracking city-wide subsidence, impact of tunneling works, identifying at-risk areas, and informing sustainable development.
- Mining & Energy: Ensuring operational safety through tailings dam monitoring and ground stability analysis.
15:15Coffee Break & Networking
15:30Application Showcase II: Taming Natural Forces & Managing Resources
- Natural Hazard Response: Rapidly mapping ground displacement after earthquakes and tracking volcanic inflation.
- Landslide Early Warning: Identifying precursor movements in unstable slopes to mitigate risk.
- Subsidence along coastal areas: Providing invaluable data for modeling the impact of climate change.
16:30The Road Ahead: Your InSAR Journey & Open Forum
- Summary of key takeaways.
- Next steps for integrating InSAR into your own projects.
- Extended Q&A session with the instructor.
17:00End of the course

About the Instructor

Alessandro Ferretti received his PhD in 1997 at the Politecnico di Milano. His research efforts have been focused on radar data processing, SAR interferometry and the use of radar data for surface deformation monitoring. He is co-inventor of the “Permanent Scatterer Technique” (PSInSAR), a technology patented in 1999 providing millimetre accuracy surface deformation measurements from satellite radar data. He is also co-inventor of the algorithm SqueeSAR® (2009), a second-generation PSInSAR analysis. In March 2000 he co-founded TRE, today TRE ALTAMIRA, the largest InSAR company worldwide, with >120 employees in various countries. He is currently a member of EAGE, AGU and the IEEE. Dr. Ferretti was one of the recipients of the ENI Awards 2012 and the 2016 Highest Impact Paper Award of the IEEE Geoscience and Remote Sensing Society. Today Alessandro Ferretti is acting as CEO of TRE ALTAMIRA, part of the CLS group.

Short Course 2 Short Course Title

Date:

X Sep 2025

Time:

00:00 - 00:00 BST (TBC)

Convenors

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Preliminary Schedule
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Short Course 3 Short Course Title

Date:

X Sep 2025

Time:

00:00 - 00:00 BST (TBC)

Convenors

Name (company)
Name (company)

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Preliminary Schedule
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