Articles | Volume 16, issue 6
The Cryosphere, 16, 2421–2448, 2022
https://doi.org/10.5194/tc-16-2421-2022
The Cryosphere, 16, 2421–2448, 2022
https://doi.org/10.5194/tc-16-2421-2022
Research article
23 Jun 2022
Research article | 23 Jun 2022

Controls on Greenland moulin geometry and evolution from the Moulin Shape model

Lauren C. Andrews et al.

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Cited articles

Aadnøy, B. S.: A complete elastic model for fluid-induced and in-situ generated stresses with the presence of a borehole, Energy Sources, 9, 239–259, 1987. 
Alley, R. B.: Flow-law hypotheses for ice-sheet modeling, J. Glaciol., 38, 245–256, https://doi.org/10.3189/S0022143000003658, 1992. 
Alley, R. B., Dupont, T. K., Parizek, B. R., and Anandakrishnan, S.: Access of surface meltwater to beds of sub-freezing glaciers: preliminary insights, Ann. Glaciol., 40, 8–14, https://doi.org/10.3189/172756405781813483, 2005. 
Amadei, B.: Rock Anisotropy and the Theory of Stress Measurements, Springer Berlin, Heidelberg, Germany, ISBN 978-3-540-12388-0, 1983. 
Andrews, L. C., Catania, G. A., Hoffman, M. J., Gulley, J. D., Lüthi, M. P., Ryser, C., Hawley, R. L., and Neumann, T. A.: Direct observations of evolving subglacial drainage beneath the Greenland Ice Sheet, Nature, 514, 80–83, https://doi.org/10.1038/nature13796, 2014. 
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Short summary
We introduce a model for moulin geometry motivated by the wide range of sizes and shapes of explored moulins. Moulins comprise 10–14 % of the Greenland englacial–subglacial hydrologic system and act as time-varying water storage reservoirs. Moulin geometry can vary approximately 10 % daily and over 100 % seasonally. Moulin shape modulates the efficiency of the subglacial system that controls ice flow and should thus be included in hydrologic models.