Articles | Volume 15, issue 12
The Cryosphere, 15, 5409–5421, 2021
https://doi.org/10.5194/tc-15-5409-2021
The Cryosphere, 15, 5409–5421, 2021
https://doi.org/10.5194/tc-15-5409-2021
Research article
07 Dec 2021
Research article | 07 Dec 2021

Generation and fate of basal meltwater during winter, western Greenland Ice Sheet

Joel Harper et al.

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Short summary
We use surface and borehole measurements to investigate the generation and fate of basal meltwater in the ablation zone of western Greenland. The rate of basal meltwater generation at borehole study sites increases by up to 20 % over the winter period. Accommodation of all basal meltwater by expansion of isolated subglacial cavities is implausible. Other sinks for water do not likely balance basal meltwater generation, implying water evacuation through a connected drainage system in winter.