Monitoring surface stability from space

Themes: Aerospace, High Tech

Early stage commercial environment application

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Surface stability is important for safety and sustainability. Instability can follow from e.g. gas production or mining, leading to land subsidence in the range of millimetres to centimetres. We developed a technique to observe this from space.


Using a technique called satellite radar interferometry (InSAR), it is possible to detect surface motion with millimetre precision. The transformation of raw satellite data to quantitative information about surface stability is the essence of our research.


We have been involved in development of geodetic deformation analysis using InSAR for the last 15 years. The technique is currently applied to monitor the effects of gas production in Groningen, and other subsidence areas in the Netherlands.

Dr. ir. Sami Samiei Esfahany


Prof. dr. ir. Ramon Hanssen

Dr. ir. Freek van Leijen