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20.10.2017 : 1:49 : +0200

Forest Storm Damage map

In December 1999, a low-pressure system that resulted in a violent extratropical cyclone sweeping across Central Europe caused major damage in France, southern Germany, and Switzerland. Wind speeds reached around 150 km/h in lower areas and more than 250 km/h on some mountains. Besides buildings and infrastructure, forests, suffered major damage resulting in substantial economic loss. Based on the change detection of the interferometric coherence derived from ERS-1/2 InSAR pairs before and after the storm it was possible to map affected forests as the example shown below. The picture shows the forest of Treiten that was heavily affected by the storm.

ERS data copyright ESA, processing GAMMA.