Articles | Volume 16, issue 10
https://doi.org/10.5194/tc-16-4379-2022
https://doi.org/10.5194/tc-16-4379-2022
Research article
 | 
19 Oct 2022
Research article |  | 19 Oct 2022

In situ measurements of meltwater flow through snow and firn in the accumulation zone of the SW Greenland Ice Sheet

Nicole Clerx, Horst Machguth, Andrew Tedstone, Nicolas Jullien, Nander Wever, Rolf Weingartner, and Ole Roessler

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Cited articles

Adolph, A. C. and Albert, M. R.: Gas diffusivity and permeability through the firn column at Summit, Greenland: measurements and comparison to microstructural properties, The Cryosphere, 8, 319–328, https://doi.org/10.5194/tc-8-319-2014, 2014. a
Ahlstrøm, A., Gravesen, P., Andersen, S., van As, D., Citterio, M., Fausto, R., Nielsen, S., Jepsen, H., Kristensen, S., Christensen, E., Stenseng, L., Forsberg, R., Hanson, S., and Petersen, D.: A new programme for monitoring the mass loss of the Greenland ice sheet, Geological Survey of Denmark and Greenland Bulletin, 15, 61–64, https://doi.org/10.34194/geusb.v15.5045, 2008. a, b
Albert, M. R., Shultz, E. F., and Perron, F. E.: Snow and firn permeability at Siple Dome, Antarctica, Ann. Glaciol., 31, 353–356, https://doi.org/10.3189/172756400781820273, 2000. a
Ambach, W.: Untersuchungen zum Energieumsatz in der Ablationszone des Grönländischen Inlandeises, Meddelelser om Grønland, 174, 1–311, 1963. a
Ambach, W., Blumthaler, M., Eisner, H., Kirchlechner, P., Schneider, H., Behrens, H., Moser, H., Oerter, H., Rauert, W., and Bergman, H.: Untersuchungen der Wassertafel am Kesselwandferner (Ötztaler Alpen) an einem 30 Meter tiefen Firnschacht, Zeitschrift für Gletscherkunde und Glazialgeologie, 14, 61–71, 1978. 
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Short summary
Meltwater runoff is one of the main contributors to mass loss on the Greenland Ice Sheet that influences global sea level rise. However, it remains unclear where meltwater runs off and what processes cause this. We measured the velocity of meltwater flow through snow on the ice sheet, which ranged from 0.17–12.8 m h−1 for vertical percolation and from 1.3–15.1 m h−1 for lateral flow. This is an important step towards understanding where, when and why meltwater runoff occurs on the ice sheet.