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 does this have on the health of the lake? 🧐
📋 The latest scientific surveys of the CIPEL show that this winter the mixing depth was estimated at 130 m, which means that the water between 130 m depth and the bottom of the lake at 309 m did not mix with the surface water 🔃
The last complete mixing was during the harsh winter of 2011/2012. It is only at this time of year that surface water and deep water can mix due to the cold and wind.
The repetition of incomplete stirring over the last 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 represent a risk of asphyxiation for living organisms at depth 🙁
More information in the press release.