by Samuel Bohnenblust | Jul 19, 2016
Flood warning system Steinach Challenge Steinach creek originates in the hills above the town of St. Gallen, passes through town and then heads north where it flows into the Lake of Constance. During heavy rains, Steinach creek can swell up to a raging river, posing a...
by Samuel Bohnenblust | Jun 24, 2016
Flood warning Zulg Challenge The 23 km long Zulg river drains a total of 89 km² of the Swiss Prealps near the municipality of Steffisburg in the canton of Bern. In the Zulg catchment, heavy local precipitation is not uncommon, leading to a fast reaction of the water...
by Samuel Bohnenblust | Feb 18, 2016
Debris flow monitoring Spreitgraben Situation Thawing permafrost was held responsible for several rock fall events that initiated in the north face of the Ritzlihorn (3263 m asl) in the Bernese Oberland in 2009. Up until 2011, large debris flows followed every summer...
by Samuel Bohnenblust | Feb 18, 2016
Val Parghera landslide monitoring Challenge In April 2013, snow melt and precipitation activated extensive terrain movements in the Parghera valley in the vicinity of Domat-Ems, in the Canton of Grisons. On April 19 authorities were forced to close the cantonal road...
by Samuel Bohnenblust | Feb 18, 2016
Glacial lake monitoring in western China (Shaksgam-valley) Challenge Throughout the past ten years, glacial lake outbursts from the Kyagar Glacier in western China (Xinjiang province) have produced several devastating flood waves along the Keleqin/Yarkant Rivers,...
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