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Ecological benefits of sediment bypass tunnels

May 18, 2017 - Bypass tunnels designed to reduce sediment deposition in reservoirs also have beneficial effects on ecological conditions in downstream receiving waters.

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Carpanak close to Van was until the years of 1960 a peninsula, accessible by foot. Photo: Yama Tomonaga
May 16, 2017

The sediments of Lake Van in Eastern Anatolia (Turkey) are a valuable climate archive. Now, using the salinity measured in sediment porewater, scientists have reconstructed the huge lake-level fluctuations that occurred over the past 250,000 years. This approach – based on simple physical concepts – is likely to be more widely applied in the future. Read more

On Soppensee (Canton Lucerne) – photo: Eawag
May 9, 2017

Analyses of environmental gases which previously required months of laboratory work can now be carried out rapidly in the field. A group of Eawag scientists have developed a portable mass spectrometer allowing on-site measurements – and a spin-off has been created to commercialize the new system. Read more

Jürg Sigrist – winner in SNSF photography competition
May 4, 2017

Jürg Sigrist has won first prize in the “Women and Men of Science” category in the Swiss National Science Foundation photography competition. Read more