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© Teledata GeoConsult 2008
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Ground Motion

 

Ground motion is the surface expression of different events:

Subsidence, mass movements, earthquakes, volcanic activity, etc.

In many situations human activities play an increasingly important role in triggering or accelerating the phenomena: slopes undercut by roads and infrastructures or overloading by buildings may induce changes in the natural equilibrium and cause ground instability; removal of fluids or solids performed through mining or pumping may result in consolidation phenomena, hence in subsidence.

According to the World Bank, over the last 18 years fossil fuel consumption has increased by almost 30% with an implied increase in the extraction rate, resulting in ground motion phenomena.

More than 80% of the subsidence identified world wide is a consequence of human exploitation of underground water.

Both the rate of movement and the magnitude of deformation depend on local geology, and for instance, in the case of subsidence caused by mining or pumping, are related to size and depth of the layers being compacted or exploited and the extraction-rate.

 

Teledata GeoConsult’s Solution:

 

Recent advancements in differential radar interferometry from satellite (DiffSAR or
DInSAR)
have not only demonstrated the capability to derive accurate Digital
Surface Models but also to  detect and monitor with high precision ground
deformations with high accuracy.

 

 

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