Change in position and altitude of a small outlet glacier during the period 1943–92: Leverett Glacier, West Greenland

Greenland outlet glacier ice - flow variability

1 I ce mass loss from the Greenland Ice Sheet is a primary contributor to global sea level rise. The rate of ice loss has accelerated over the last couple of decades and Greenland currently contributes about 0.7-1.1 mm/yr to sea-level rise (260-380 Gt/ice per year; Enderlin et al. 2014; Shepherd et al. 2012). Predicting the potential rate and limits of future mass loss requires a clear understa...

Tidal Flexure of Jakobshavns Glacier, West Greenland

21st-century evolution of Greenland outlet glacier velocities.

Earlier observations on several of Greenland's outlet glaciers, starting near the turn of the 21st century, indicated rapid (annual-scale) and large (>100%) increases in glacier velocity. Combining data from several satellites, we produce a decade-long (2000 to 2010) record documenting the ongoing velocity evolution of nearly all (200+) of Greenland's major outlet glaciers, revealing complex sp...

Modelling the transfer of supraglacial meltwater to the bed of Leverett Glacier, Southwest Greenland

Meltwater delivered to the bed of the Greenland Ice Sheet is a driver of variable ice-motion through changes in effective pressure and enhanced basal lubrication. Ice surface velocities have been shown to respond rapidly both to meltwater production at the surface and to drainage of supraglacial lakes, suggesting efficient transfer of meltwater from the supraglacial to subglacial hydrological s...

Ice-Dammed Lake Drainage Evolution at Russell Glacier, West Greenland

1 School of Geography, University of Leeds, Leeds, United Kingdom, 2 Geography, Staffordshire University, Stoke-on-Trent, United Kingdom, 3 Department of Geography, University of Sheffield, Sheffield, United Kingdom, 4 Arctic Technology Centre, Technical University of Denmark, Kemitorvet, Lyngby, Denmark, 5 Department of Geography and Geology, University of Copenhagen, Copenhagen, Denmark, 6 Ge...