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Landslide in the Alps monitored by satellites

Landslide Monitoring

To investigate the extent of the landslides on the largest Glacier in the Alps, the Alesch Glacier, radar images from the Copernicus Sentinel-1 satellite mission over August to November 2016 were analysed with the ESA’s Geohazards Exploitation Platform – or GEP – to produce a velocity map.


The satellite data also helped scientists to define the most active areas and identify locations to place additional instruments on the ground.


The two-satellite Copernicus Sentinel-1 mission is particularly useful for monitoring geophysical hazards like landslides. The satellites each carry a radar sensor that can detect small changes in the ground between each overflight, every 6–12 days.


The frequency of Sentinel-1’s data acquisition paired with GEP’s processing tools may allow for the quick detection of slope instabilities and their consequential risks.




(Source ESA)

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