Drone surveys reveal why steep alpine channels erode so fast during debris flows

PHYSorg
Jun 10, 2026, 5:20 pm272 ptsTop
A brown mass—a mixture of water, boulders and fine matter—plows through the landscape. The mountains wash more than a thousand lorryloads of material into the valley on a fairly regular basis, causing damage in excess of CHF 100 million per year in Switzerland alone. A better understanding of this natural…

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