Articles | Volume 15, issue 9
The Cryosphere, 15, 4501–4516, 2021
The Cryosphere, 15, 4501–4516, 2021

Research article 24 Sep 2021

Research article | 24 Sep 2021

Giant ice rings in southern Baikal: multi-satellite data help to study ice cover dynamics and eddies under ice

Alexei V. Kouraev et al.

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Cited articles

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Atlas of the Lake Baikal: Russian Academy of Sciences, Siberian branch, Moscow: Federal Service of geodesy and cartography, 160 pp., in: Russian Circles in thin ice, Lake Baikal, Russia, NASA Earth Observatory, Image of the day – 25 May 2009, available at: (last access: 17 March 2021), 1993. 
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Short summary
Giant ice rings are a beautiful and puzzling natural phenomenon. Our data show that ice rings are generated by lens-like warm eddies below the ice. We use multi-satellite data to analyse lake ice cover in the presence of eddies in April 2020 in southern Baikal. Unusual changes in ice colour may be explained by the competing influences of atmosphere above and the warm eddy below the ice. Tracking ice floes also helps to estimate eddy currents and their influence on the upper water layer.