The complete mixing of the waters of Lake Geneva did not take place
The complete mixing of the waters of Lake Geneva did not take place for the 10th consecutive year: what consequences on the health of the lake? 🧐
📋 The latest scientific surveys from CIPEL show that this winter the mixing depth was estimated at 130 m, which means that the waters between 130 m depth and the lake bottom at 309 meters, did not mix with the surface waters 🔃
The last complete mixing was during the harsh winter of 2011/2012. Only at this time of the year can surface and deep waters mix due to cold and wind.
Repeated incomplete stirring over the past decade has led to an increase in temperature 🌡 at the bottom of the lake (+1.1 °C since 2012) and a decrease in oxygen content 📉 The warming of the lake bottom and its deoxygenation pose a risk of asphyxiation to living organisms at depth 🙁
More information in the press release.