Articles | Volume 11, issue 1
https://doi.org/10.5194/essd-11-375-2019
https://doi.org/10.5194/essd-11-375-2019
12 Mar 2019
 | 12 Mar 2019

Geology datasets in North America, Greenland and surrounding areas for use with ice sheet models

Evan J. Gowan, Lu Niu, Gregor Knorr, and Gerrit Lohmann

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Cited articles

Abe-Ouchi, A., Saito, F., Kawamura, K., Raymo, M. E., Okuno, J., Takahashi, K., and Blatter, H.: Insolation-driven 100,000-year glacial cycles and hysteresis of ice-sheet volume, Nature, 500, 190–193, 2013. a
Alley, R. B.: In search of ice-stream sticky spots, J. Glaciol., 39, 447–454, https://doi.org/10.3189/S0022143000016336, 1993. a
Aylsworth, J. M. and Shilts, W. W.: Bedforms of the Keewatin ice sheet, Canada, Sediment. Geol., 62, 407–428, https://doi.org/10.1016/0037-0738(89)90129-2, 1989. a, b
Batchelor, C. L., Dowdeswell, J. A., and Pietras, J. T.: Seismic stratigraphy, sedimentary architecture and palaeo-glaciology of the Mackenzie Trough: evidence for two Quaternary ice advances and limited fan development on the western Canadian Beaufort Sea margin, Quaternary Sci. Rev., 65, 73–87, https://doi.org/10.1016/j.quascirev.2013.01.021, 2013. a
Booth, D. B.: Glaciofluvial infilling and scour of the Puget Lowland, Washington, during ice-sheet glaciation, Geology, 22, 695–698, https://doi.org/10.1130/0091-7613(1994)022<0695:GIASOT>2.3.CO;2, 1994. a
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The speed of ice sheet flow is largely controlled by the strength of the ice–bed interface. We present three datasets on the geological properties of regions in North America, Greenland and Iceland that were covered by Quaternary ice sheets. These include the grain size of glacial sediments, the continuity of sediment cover and bedrock geology. Simple ice modelling experiments show that altering the basal strength of the ice sheet on the basis of these datasets impacts ice thickness.
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