Journal cover Journal topic
The Cryosphere An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 4.713
IF4.713
IF 5-year value: 4.927
IF 5-year
4.927
CiteScore value: 8.0
CiteScore
8.0
SNIP value: 1.425
SNIP1.425
IPP value: 4.65
IPP4.65
SJR value: 2.353
SJR2.353
Scimago H <br class='widget-line-break'>index value: 71
Scimago H
index
71
h5-index value: 53
h5-index53
Download
Short summary
This paper details a new algorithm for performing computational experiments of subglacial granular deformation. The numerical approach allows detailed studies of internal sediment and pore-water dynamics under shear. Feedbacks between sediment grains and pore water can cause rate-dependent strengthening, which additionally contributes to the plastic shear strength of the granular material. Hardening can stabilise patches of the subglacial beds with implications for landform development.
Articles | Volume 9, issue 6
The Cryosphere, 9, 2183–2200, 2015
https://doi.org/10.5194/tc-9-2183-2015
The Cryosphere, 9, 2183–2200, 2015
https://doi.org/10.5194/tc-9-2183-2015

Research article 20 Nov 2015

Research article | 20 Nov 2015

A new methodology to simulate subglacial deformation of water-saturated granular material

A. Damsgaard et al.

Related authors

The role of electrical conductivity in radar wave reflection from glacier beds
Slawek M. Tulaczyk and Neil T. Foley
The Cryosphere, 14, 4495–4506, https://doi.org/10.5194/tc-14-4495-2020,https://doi.org/10.5194/tc-14-4495-2020, 2020
Short summary
Did Holocene climate changes drive West Antarctic grounding line retreat and re-advance?
Sarah U. Neuhaus, Slawek M. Tulaczyk, Nathan D. Stansell, Jason J. Coenen, Reed P. Scherer, Jill A. Mikucki, and Ross D. Powell
The Cryosphere Discuss., https://doi.org/10.5194/tc-2020-308,https://doi.org/10.5194/tc-2020-308, 2020
Preprint under review for TC
Modelling the effects of ice transport and sediment sources on the form of detrital thermochronological age probability distributions from glacial settings
Maxime Bernard, Philippe Steer, Kerry Gallagher, and David Lundbek Egholm
Earth Surf. Dynam., 8, 931–953, https://doi.org/10.5194/esurf-8-931-2020,https://doi.org/10.5194/esurf-8-931-2020, 2020
Short summary
Glacial history of Inglefield Land, north Greenland from combined in situ 10Be and 14C exposure dating
Anne Sofie Søndergaard, Nicolaj Krog Larsen, Olivia Steinemann, Jesper Olsen, Svend Funder, David Lundbek Egholm, and Kurt Henrik Kjær
Clim. Past, 16, 1999–2015, https://doi.org/10.5194/cp-16-1999-2020,https://doi.org/10.5194/cp-16-1999-2020, 2020
Short summary
Rapid and accurate polarimetric radar measurements of ice crystal fabric orientation at the Western Antarctic Ice Sheet (WAIS) Divide deep ice core site
Tun Jan Young, Carlos Martín, Poul Christoffersen, Dustin M. Schroeder, Slawek M. Tulaczyk, and Eliza J. Dawson
The Cryosphere Discuss., https://doi.org/10.5194/tc-2020-264,https://doi.org/10.5194/tc-2020-264, 2020
Preprint under review for TC
Short summary

Related subject area

Subglacial Processes
Subglacial carbonate deposits as a potential proxy for a glacier's former presence
Matej Lipar, Andrea Martín-Pérez, Jure Tičar, Miha Pavšek, Matej Gabrovec, Mauro Hrvatin, Blaž Komac, Matija Zorn, Nadja Zupan Hajna, Jian-Xin Zhao, Russell N. Drysdale, and Mateja Ferk
The Cryosphere, 15, 17–30, https://doi.org/10.5194/tc-15-17-2021,https://doi.org/10.5194/tc-15-17-2021, 2021
Short summary
Brief communication: Heterogenous thinning and subglacial lake activity on Thwaites Glacier, West Antarctica
Andrew O. Hoffman, Knut Christianson, Daniel Shapero, Benjamin E. Smith, and Ian Joughin
The Cryosphere, 14, 4603–4609, https://doi.org/10.5194/tc-14-4603-2020,https://doi.org/10.5194/tc-14-4603-2020, 2020
Short summary
Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica
Felipe Napoleoni, Stewart S. R. Jamieson, Neil Ross, Michael J. Bentley, Andrés Rivera, Andrew M. Smith, Martin J. Siegert, Guy J. G. Paxman, Guisella Gacitúa, José A. Uribe, Rodrigo Zamora, Alex M. Brisbourne, and David G. Vaughan
The Cryosphere, 14, 4507–4524, https://doi.org/10.5194/tc-14-4507-2020,https://doi.org/10.5194/tc-14-4507-2020, 2020
Short summary
The role of electrical conductivity in radar wave reflection from glacier beds
Slawek M. Tulaczyk and Neil T. Foley
The Cryosphere, 14, 4495–4506, https://doi.org/10.5194/tc-14-4495-2020,https://doi.org/10.5194/tc-14-4495-2020, 2020
Short summary
Subglacial permafrost dynamics and erosion inside subglacial channels driven by surface events in Svalbard
Andreas Alexander, Jaroslav Obu, Thomas V. Schuler, Andreas Kääb, and Hanne H. Christiansen
The Cryosphere, 14, 4217–4231, https://doi.org/10.5194/tc-14-4217-2020,https://doi.org/10.5194/tc-14-4217-2020, 2020
Short summary

Cited articles

Alley, R. B.: Water-pressure coupling of sliding and bed deformation: I. Water system, J. Glaciol., 35, 108–118, 1989.
Alley, R. B.: In search of ice-stream sticky spots, J. Glaciol., 39, 447–454, 1993.
Alley, R. B. and Whillans, I. M.: Changes in the West Antarctic ice sheet, Science, 254, 959–963, 1991.
Alley, R. B., Blankenship, D. D., Rooney, S. T., and Bentley, C. R.: Till beneath ice stream B 4. A coupled ice-till flow model, J. Geophys. Res., 92, 8931–8940, 1987.
Anderson, T. B. and Jackson, R.: A fluid mechanical description of fluidized beds, Ind. Eng. Chem., 6, 527–539, 1967.
Publications Copernicus
Download
Short summary
This paper details a new algorithm for performing computational experiments of subglacial granular deformation. The numerical approach allows detailed studies of internal sediment and pore-water dynamics under shear. Feedbacks between sediment grains and pore water can cause rate-dependent strengthening, which additionally contributes to the plastic shear strength of the granular material. Hardening can stabilise patches of the subglacial beds with implications for landform development.
Citation