INSAR STABLE POINT NETWORK (SPN)
High-precision ground deformation velocity map and ground motion time series for selected points using ALTAMIRA INFORMATION’s own in-house PSI software: SPN.
- InSAR Stable Point Network technique delivers highly accurate measurements of ground displacements over long time periods
- Atmospheric effects and topographic influence are removed using a large number of SAR images (25 images or more)
- The high-level of error compensation allows the generation of time series charts, visualising the evolution of the displacement of each stable point
- Ground deformation is measured with a vertical precision of 1 mm/year
- Horizontal localisation precision of measurement points is 1-2 m
| Ground motion map:
Jubilee Line metro tunnelling, London  |
Time series chart:
Ground motion over time for selected measurement point  |
