Surface Melt-Induced Acceleration of Greenland Ice-Sheet Flow

By H. Zwally, W. Abdalati, T. Herring, Kristine M. Larson, J. Saba, Konrad Steffen. Science, 2002

1,063 citations recorded by the source corpus.

Subfields: Atmospheric Science, Management, Monitoring, Policy and Law

View Paper: https://www.semanticscholar.org/paper/ab275b10033f51213be4799dac869b0be001048f

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Citations in the corpus

Glacier-surge mechanisms promoted by a hydro-thermodynamic feedback to summer melt (2015, background): “In the ice cap’s interior, basal temperatures are likely at the pressure-melting point (Zagorodnov et al., 1989), while the thinner ice-cap margins are cold and frozen to the bed, except for distinct fast-flowing outlets that are dominated by fast basal motion and imbedded within the generally…”
Dangerous human-made interference with climate: a GISS modelE study (2006, background): “Summer surface air temperature change on Greenland in the 21st century is only 0.5–1 ◦ C with alternative scenario climate forcings (Fig.”
Shallow shelf approximation as a “sliding law” in a thermomechanically coupled ice sheet model (2008, methodology): “Short time-scale, local changes basal lubrication of the type associated to moulin drainage of surface melt [Zwally et al., 2002] can also be simulated directly without inverse methods, by forcing changes in modeled pore water pressure.”
Ice-sheet acceleration driven by melt supply variability (2010, background): “It is these spikes that lead to ice speedup, which is therefore driven by strong diurnal melt cycles(14,4) and an increase in rain and surface lake drainage events(17,8,18) rather than an increase in mean melt supply.(3,4) The effective pressure in the subglacial drainage system, defined as overburd”
Simulated Antarctic precipitation and surface mass balance at the end of the twentieth and twenty-first centuries (2006, background): “Similarly, a surface melt increase can accelerate basal sliding via a better lubrication by water at the ice/rock interface, and can thus induce a more negative overall mass balance of an ice sheet, as shown by Zwally et al. (2002) for the case of Greenland.”
The value of multiangle measurements for retrieving structurally and radiatively consistent properties of clouds, aerosols, and surfaces (2005, background): “This can produce meltwater percolation or melt-induced fracturing (Scambos et al., 2000; Zwally et al., 2002) , resulting in glacier speed-up or ice shelf disintegration.”
A model for turbulent hydraulic fracture and application to crack propagation at glacier beds (2010, background): “…become of paramount importance to understand the fracture process in glaciers since it influences fundamental aspects of glacial dynamics, including flow speeds, calving behavior, and stability of the ice sheet [e.g., Zwally et al., 2002; Kenneally, 2003; Joughin et al., 2008; Tsai et al., 2008].”
Target atmospheric CO2: Where should humanity aim? (2008, neutral): “Present-day observations of Greenland and Antarctica show increasing surface melt [35], loss of buttressing ice shelves [36], accelerating ice streams [37], and increasing overall mass loss [38].”
Convection-Driven Melting near the Grounding Lines of Ice Shelves and Tidewater Glaciers (2011, background): “Surface meltwater is known to drain to the bed of the Greenland Ice Sheet, imparting a seasonal variability to the motion of ice in the ablation zone (Zwally et al. 2002; Das et al. 2008; Joughin et al. 2008), and at least some of this meltwater eventually reaches the grounding lines of the tidewate”
Will Greenland melting halt the thermohaline circulation? (2006, background): “Moreover, several recent publications have raised the concern that considering melting alone could underestimate the ice-sheet disintegration [e.g., Zwally et al., 2002].”