Talk at Slope Stability ’18
Slope monitoring with new radar satellites SENTINEL-1: An opportunity for the mining industry
SLOPE STABILITY 2018, April 11-13, 2018 Seville, Spain
Author: Javier Duro (Dares Technology)
Co-Authors: Johanna Granda (Dares Technology), David Albiol (Dares Technology), Giuseppe Centolanza (Dares Technology)
Slope stability monitoring with highest reliable measurements is key for mining operators. Safety in mines has to be maintained at highest level, but at the same time mining operators face cost reduction pressure with low raw material prices and high volatility in raw material prices.
Since last decade, radar satellite based slope stability monitoring (InSAR technology) is used more and more to monitor slope stability over entire mining areas, providing millimetric accuracy and wide coverage data to identify potential vulnerable areas.
A revolution has taken place in InSAR technology: With SENTINEL-1 satellites free radar satellite images are available nearly all over the world, even in remote areas, for both the present and the past.
The European Space Agency launched end 2014 the radar satellite constellation Sentinel-1, two public radar satellites (Sentinel 1a and Sentinel 1b) who are acquiring radar satellite images all over the world for free. In Europe, images are acquired every 6-12 days, and in most international mining areas every 12-36 days. Furthermore, it is a C-band satellite with longer wavelength than previously used X-band satellites, with the advantage to provide more homogenous measurement data points for better determining the deformations gradients over vulnerable areas.
Several examples of slope monitoring with SENTINEL-1 will be presented to show the value of radar satellite monitoring for slope stability.
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