Articles | Volume 17, issue 12
https://doi.org/10.5194/tc-17-5391-2023
https://doi.org/10.5194/tc-17-5391-2023
Research article
 | 
19 Dec 2023
Research article |  | 19 Dec 2023

Surging of a Hudson Strait-scale ice stream: subglacial hydrology matters but the process details mostly do not

Matthew Drew and Lev Tarasov

Related authors

North American Pleistocene Glacial Erosion and Thin Pliocene Regolith Thickness Inferred from Data-Constrained Fully Coupled Ice-Climate-Sediment modelling
Matthew Drew and Lev Tarasov
EGUsphere, https://doi.org/10.5194/egusphere-2024-620,https://doi.org/10.5194/egusphere-2024-620, 2024
Short summary

Related subject area

Discipline: Ice sheets | Subject: Numerical Modelling
Antarctic sensitivity to oceanic melting parameterizations
Antonio Juarez-Martinez, Javier Blasco, Alexander Robinson, Marisa Montoya, and Jorge Alvarez-Solas
The Cryosphere, 18, 4257–4283, https://doi.org/10.5194/tc-18-4257-2024,https://doi.org/10.5194/tc-18-4257-2024, 2024
Short summary
Analytical solutions for the advective–diffusive ice column in the presence of strain heating
Daniel Moreno-Parada, Alexander Robinson, Marisa Montoya, and Jorge Alvarez-Solas
The Cryosphere, 18, 4215–4232, https://doi.org/10.5194/tc-18-4215-2024,https://doi.org/10.5194/tc-18-4215-2024, 2024
Short summary
Ice viscosity governs hydraulic fracture that causes rapid drainage of supraglacial lakes
Tim Hageman, Jessica Mejía, Ravindra Duddu, and Emilio Martínez-Pañeda
The Cryosphere, 18, 3991–4009, https://doi.org/10.5194/tc-18-3991-2024,https://doi.org/10.5194/tc-18-3991-2024, 2024
Short summary
Biases in ice sheet models from missing noise-induced drift
Alexander A. Robel, Vincent Verjans, and Aminat A. Ambelorun
The Cryosphere, 18, 2613–2623, https://doi.org/10.5194/tc-18-2613-2024,https://doi.org/10.5194/tc-18-2613-2024, 2024
Short summary
Sensitivity of Future Projections of the Wilkes Subglacial Basin Ice Sheet to Grounding Line Melt Parameterizations
Yu Wang, Chen Zhao, Rupert Gladstone, Thomas Zwinger, Ben Galton-Fenzi, and Poul Christoffersen
EGUsphere, https://doi.org/10.5194/egusphere-2024-1005,https://doi.org/10.5194/egusphere-2024-1005, 2024
Short summary

Cited articles

Alley, R.: Water-Pressure Coupling of Sliding and Bed Deformation: I. Water System, J. Glaciol., 35, 108–118, https://doi.org/10.3189/002214389793701527, 1989. a
Alley, R. B.: How can low-pressure channels and deforming tills coexist subglacially?, J. Glaciol., 38, 200–207, https://doi.org/10.3189/s0022143000009734, 1992. a
Alley, R. B., Anandakrishnan, S., Bentley, C. R., and Lord, N.: A water-piracy hypothesis for the stagnation of Ice Stream C, Antarctica, Ann. Glaciol., 20, 187–194, https://doi.org/10.3189/1994aog20-1-187-194, 1994. a
Anandakrishnan, S. and Alley, R. B.: Stagnation of Ice Stream C, West Antarctica by water piracy, Geophys. Res. Lett., 24, 265–268, https://doi.org/10.1029/96gl04016, 1997. a
Anderson, R. S., Hallet, B., Walder, J., and Aubry, B. F.: Observations in a cavity beneath grinnell glacier, Earth Surf. Proc. Land., 7, 63–70, https://doi.org/10.1002/esp.3290070108, 1982. a
Download
Short summary
The interaction of fast-flowing regions of continental ice sheets with their beds governs how quickly they slide and therefore flow. The coupling of fast ice to its bed is controlled by the pressure of meltwater at its base. It is currently poorly understood how the physical details of these hydrologic systems affect ice speedup. Using numerical models we find, surprisingly, that they largely do not, except for the duration of the surge. This suggests that cheap models are sufficient.