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Dynamics of the Greenland Ice Sheet
2007The Greenland ice sheet is the largest ice sheet in the Northern Hemisphere. Snow accumulation is high due to the proximity of the North Atlantic, and annual layers have been resolved in ice core records through the last glacial period. Ice flows from the interior toward the margin, where it is lost by surface melting or drains through fast-flowing ...
Hvidberg, C. S. +2 more
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Radiostratigraphy and age structure of the Greenland Ice Sheet [PDF]
Journal of Geophysical Research F: Earth Surface, 2015 AbstractSeveral decades of ice‐penetrating radar surveys of the Greenland and Antarctic ice sheets have observed numerous widespread internal reflections. Analysis of this radiostratigraphy has produced valuable insights into ice sheet dynamics and motivates additional mapping of these reflections. Here we present a comprehensive deep radiostratigraphy
Joseph A Macgregor +2 more
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Supernovae and nitrate in the Greenland Ice Sheet
Nature, 1981Nitrate concentration in the absolutely dated Greenland ice core from Crete has been measured for six time intervals, five surrounding the time of appearance of the well established historical supernovae during the past 1,000 yr and one during the Maunder minimum of solar activity, to look for a possible correlation between supernovae and nitrate ...
Risbo, Torben +2 more
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Is the Greenland Ice Sheet bistable?
Paleoceanography, 1995Ice core work on Greenland has produced dramatic evidence for an instability of the climate system in the North Atlantic sector. In this paper, we provide climate modeling results indicating another possible example of a multiple equilibrium climate state, where such behavior might apply to the ice sheet itself.
Steven K. Baum, Thomas J. Crowley
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Future of the Greenland ice sheet [PDF]
Nature Climate Change, 2012 Ice-sheet loss is a likely effect of human interference with the climate system. Research shows that the disintegration of the Greenland ice sheet could occur close to, or even below, the target of limiting warming to 2 °C above pre-industrial levels.
Gerhard Krinner, Gaël Durand
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The Greenland Ice Sheet Reacts
Science, 2000The Greenland Ice Sheet holds a substantial part of Earth's fresh water, and melting of the sheet contributes to sea level rise. [Dahl-Jensen][1] discusses the reports by [ Krabill et al .][2] and [ Thomas et al .][3], which shed light on short- and long-term surface elevation changes of the ice sheet.
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Folding in the Greenland Ice Sheet
Journal of Geophysical Research: Solid Earth, 1987The deformation of layering into folds is modeled for a linear viscous medium moving over a décollement. Folds are generated by flow variations caused by relief on the décollement, variations in friction, or both. The model is applied to folds forming now in the Greenland Ice Sheet near Dye 3, for which more complete data are available than for ...
I. M. Whillans, K. C. Jezek
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Growth of Greenland Ice Sheet: Interpretation [PDF]
Science, 1989 An observed 0.23 m/year thickening of the Greenland ice sheet indicates a 25% to 45% excess ice accumulation over the amount required to balance the outward ice flow. The implied global sea-level depletion is 0.2 to 0.4 mm/year, depending on whether the thickening is only recent (5 to 10 years) or longer term (< 100 years).
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Growth of Greenland Ice Sheet: Measurement
Science, 1989Measurements of ice-sheet elevation change by satellite altimetry show that the Greenland surface elevation south of 72° north latitude is increasing. The vertical velocity of the surface is 0.20 ± 0.06 meters per year from measured changes in surface elevations at 5906 intersections between Geosat paths in 1985 and Seasat in 1978, and 0.28 ± 0.02 ...
James G. Marsh +4 more
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Maximum Southwest Greenland Ice Sheet Recession in the Early Holocene
Geophysical Research Letters, 2020Establishing the timing of maximum Holocene warmth in the Arctic is critical for understanding global climate system response to external forcing. In Greenland, challenges in obtaining climate records that span the full Holocene have hampered efforts to ...
A. Lesnek +3 more
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