Articles | Volume 16, issue 20
https://doi.org/10.5194/gmd-16-5803-2023
https://doi.org/10.5194/gmd-16-5803-2023
Model description paper
 | 
19 Oct 2023
Model description paper |  | 19 Oct 2023

A new model for supraglacial hydrology evolution and drainage for the Greenland Ice Sheet (SHED v1.0)

Prateek Gantayat, Alison F. Banwell, Amber A. Leeson, James M. Lea, Dorthe Petersen, Noel Gourmelen, and Xavier Fettweis

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Cited articles

Amory, C., Kittel, C., Le Toumelin, L., Agosta, C., Delhasse, A., Favier, V., and Fettweis, X.: Performance of MAR (v3.11) in simulating the drifting-snow climate and surface mass balance of Adélie Land, East Antarctica, Geosci. Model Dev., 14, 3487–3510, https://doi.org/10.5194/gmd-14-3487-2021, 2021. 
Arnold, N., K. Richards, Willis, I., and Sharp, M.: Initial results from a distributed, physically based model of glacier hydrology, Hydrol. Processes, 12, 191–219, https://doi.org/10.1002/(SICI)1099-1085(199802)12:2<191::AIDHYP571>3.0.CO;2-C, 1998. 
Arnold, N. S.: A new approach for dealing with depressions in digital elevation models when calculating flow accumulation values, Prog. Phys. Geogr., 34, 781–809, https://doi.org/10.1177/0309133310384542, 2010. 
Banwell, A. F., Arnold, N., Willis, I., Tedesco, M., and Ahlstrom, A.: Modelling supraglacial water routing and lake filling on the Greenland Ice Sheet, J. Geophys. Res., 117, F04012, https://doi.org/10.1029/2012JF002393, 2012a. 
Banwell, A. F., Willis, I. C., Arnold, N. S., Messerli, A., Rye, C. J., and Ahlstrøm, A. P.: Calibration and validation of a high resolution surface mass balance model for Paakitsoq, west Greenland, J. Glaciol., 58, 1047–1062, https://doi.org/10.3189/2012JoG12J034, 2012b. 
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Short summary
We developed a new supraglacial hydrology model for the Greenland Ice Sheet. This model simulates surface meltwater routing, meltwater drainage, supraglacial lake (SGL) overflow, and formation of lake ice. The model was able to reproduce 80 % of observed lake locations and provides a good match between the observed and modelled temporal evolution of SGLs.