Articles | Volume 17, issue 4
https://doi.org/10.5194/tc-17-1697-2023
https://doi.org/10.5194/tc-17-1697-2023
Research article
 | 
19 Apr 2023
Research article |  | 19 Apr 2023

Bedfast and floating-ice dynamics of thermokarst lakes using a temporal deep-learning mapping approach: case study of the Old Crow Flats, Yukon, Canada

Maria Shaposhnikova, Claude Duguay, and Pascale Roy-Léveillée

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Short summary
We explore lake ice in the Old Crow Flats, Yukon, Canada, using a novel approach that employs radar imagery and deep learning. Results indicate an 11 % increase in the fraction of lake ice that grounds between 1992/1993 and 2020/2021. We believe this is caused by widespread lake drainage and fluctuations in water level and snow depth. This transition is likely to have implications for permafrost beneath the lakes, with a potential impact on methane ebullition and the regional carbon budget.