Articles | Volume 12, issue 9
The Cryosphere, 12, 2831–2854, 2018
The Cryosphere, 12, 2831–2854, 2018
Research article
05 Sep 2018
Research article | 05 Sep 2018

A constraint upon the basal water distribution and thermal state of the Greenland Ice Sheet from radar bed echoes

Thomas M. Jordan et al.

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Cited articles

Artemieva, I. M.: Global 1°  ×  1° thermal model TC1 for the continental lithosphere: Implications for lithosphere secular evolution, Tectonophysics, 416, 245–277,, 2006.
Bamber, J. L., Griggs, J. A., Hurkmans, R. T. W. L., Dowdeswell, J. A., Gogineni, S. P., Howat, I., Mouginot, J., Paden, J., Palmer, S., Rignot, E., and Steinhage, D.: A new bed elevation dataset for Greenland, The Cryosphere, 7, 499–510,, 2013a.
Bamber, J. L., Siegert, M. J., Griggs, J. A., Marshall, S. J., and Spada, G.: Paleofluvial Mega-Canyon Beneath the Central Greenland Ice Sheet, Science, 341, 997–1000,, 2013b.
Beem, L. H., Cavitte, M. G. P., Blankenship, D. D., Carter, S. P., and Young, D. A.: Ice-flow reorganization within the East Antarctic Ice Sheet deep interior, Geological Society, London, Special Publications, p. SP461.14,, 2017.
Short summary
Here, via analysis of radio-echo sounding data, we place a new observational constraint upon the basal water distribution beneath the Greenland Ice Sheet. In addition to the outlet glaciers, we demonstrate widespread water storage in the northern and eastern ice-sheet interior, a notable feature being a "corridor" of basal water extending from NorthGRIP to Petermann Glacier. The basal water distribution and its relationship with basal temperature provides a new constraint for numerical models.