Articles | Volume 24, issue 4
https://doi.org/10.5194/hess-24-1691-2020
https://doi.org/10.5194/hess-24-1691-2020
Research article
 | 
08 Apr 2020
Research article |  | 08 Apr 2020

Turbulence in the stratified boundary layer under ice: observations from Lake Baikal and a new similarity model

Georgiy Kirillin, Ilya Aslamov, Vladimir Kozlov, Roman Zdorovennov, and Nikolai Granin

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Latest update: 21 Nov 2024
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Short summary
We found that heat transported from Lake Baikal to its ice cover is up to 10 times higher than traditionally assumed and strongly affects the ice melting. The heat is transported by under-ice currents on the background of a strong temperature gradient between the ice base and warmer waters beneath. To parameterize this newly quantified transport mechanism, an original boundary layer model was developed. The results are crucial for understanding seasonal ice dynamics on lakes and marginal seas.