A UK company has developed a technique that can identify and monitor very precise surface ground vertical movement.
Founded in 2015, Geomatic Ventures Ltd (GVL) is a spin-out company from the Nottingham Geospatial Institute, part of the Institute-affiliated University of Nottingham.
GVL have developed a unique Interferometric Synthetic Aperture Radar (InSAR) technique known as Intermittent Small Baseline Subset (ISBAS) that can identify and monitor very precise surface ground movements as an early warning system for a range of industries.
The method is unique in that it can survey all classes of terrain and land cover types, including vegetation, to millimetre precision - where normal InSAR algorithms habitually struggle. It claims to construct surface movement history with an unrivaled point density - providing clients with new insights and helping to uncover previously undetected patterns.
Raw surveys can come from any stripmap SAR products - there are at least 6 satellite-based radars that produce suitable data. For a given stack of SAR imagery, GVL can provide both average velocities and time-series of vertical deformation.
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