Articles | Volume 15, issue 4
The Cryosphere, 15, 2021–2040, 2021
https://doi.org/10.5194/tc-15-2021-2021
The Cryosphere, 15, 2021–2040, 2021
https://doi.org/10.5194/tc-15-2021-2021

Research article 23 Apr 2021

Research article | 23 Apr 2021

Evolution of the firn pack of Kaskawulsh Glacier, Yukon: meltwater effects, densification, and the development of a perennial firn aquifer

Naomi E. Ochwat et al.

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Short summary
In May 2018 we drilled into Kaskawulsh Glacier to study how it is being affected by climate warming and used models to investigate the evolution of the firn since the 1960s. We found that the accumulation zone has experienced increased melting that has refrozen as ice layers and has formed a perennial firn aquifer. These results better inform climate-induced changes on northern glaciers and variables to take into account when estimating glacier mass change using remote-sensing methods.