Now showing items 1-9 of 9

    • Basal dynamics of Kronebreen, a fast-flowing tidewater glacier in Svalbard : non-local spatio-temporal response to water input 

      Vallot, Dorothée; Pettersson, Rickard; Luckman, Adrian; Benn, Douglas I.; Zwinger, Thomas; van Pelt, Ward J. J.; Kohler, Jack; Schäfer, Martina; Claremar, Björn; Hulton, Nicholas R. J. (2017-12) - Journal article
      We evaluate the variability in basal friction for Kronebreen, Svalbard, a fast-flowing tidewater glacier. We invert 3 years (2013–15) of surface velocities at high temporal resolution (generally 11 days), to estimate the ...
    • Calving controlled by melt-under-cutting : detailed calving styles revealed through time-lapse observations 

      How, Penelope; Schild, Kristin M.; Benn, Douglas I.; Noormets, Riko; Kirchner, Nina; Luckman, Adrian; Vallot, Dorothée; Hulton, Nicholas R.J.; Borstad, Chris (2019-01-30) - Journal article
      We present a highly detailed study of calving dynamics at Tunabreen, a tidewater glacier in Svalbard. A time-lapse camera was trained on the terminus and programmed to capture images every 3 seconds over a 28-hour period ...
    • A full-Stokes 3D calving model applied to a large Greenlandic glacier 

      Todd, Joe; Christoffersen, Poul; Zwinger, Thomas; Råback, Peter; Chauché, Nolwenn; Benn, Doug; Luckman, Adrian; Ryan, Johnny; Toberg, Nick; Slater, Donald; Hubbard, Alun (2018-03-01) - Journal article
      Iceberg calving accounts for around half of all mass loss from both the Greenland and Antarctic ice sheets. The diverse nature of calving and its complex links to both internal dynamics and climate make it challenging to ...
    • Glacier calving in Greenland 

      Benn, Douglas I.; Cowton, Tom; Todd, Joe; Luckman, Adrian (2017-12) - Journal item
      In combination, the breakaway of icebergs (calving) and submarine melting at marineterminating glaciers account for between one third and one half of the mass annually discharged from the Greenland Ice Sheet into the ocean. ...
    • Ice and firn heterogeneity within Larsen C Ice Shelf from borehole optical televiewing 

      Ashmore, David W.; Hubbard, Bryn; Luckman, Adrian; Kulessa, Bernd; Bevan, Suzanne; Booth, Adam; Munneke, Peter Kuipers; O'Leary, Martin; Sevestre, Heidi; Holland, Paul R. (2017-05) - Journal article
      We use borehole optical televiewing (OPTV) to explore the internal structure of Larsen C Ice Shelf (LCIS). We report a suite of five ~90 m long OPTV logs, recording a light-emitting diode-illuminated, geometrically correct ...
    • Melt-under-cutting and buoyancy-driven calving from tidewater glaciers : new insights from discrete element and continuum model simulations 

      Benn, Douglas I.; Åström, Jan; Zwinger, Thomas; Todd, Joe; Nick, Faezeh M.; Cook, Susan; Hulton, Nicholas R. J.; Luckman, Adrian (2017-09) - Journal article
      The simple calving laws currently used in ice sheet models do not adequately reflect the complexity and diversity of calving processes. To be effective, calving laws must be grounded in a sound understanding of how calving ...
    • Stagnation and mass loss on a Himalayan debris-covered glacier: processes, patterns and rates 

      Thompson, Sarah; Benn, Douglas I.; Mertes, Jordan; Luckman, Adrian (2016-06-01) - Journal article
      The ablation areas of debris-covered glaciers typically consist of a complex mosaic of surface features with contrasting processes and rates of mass loss. This greatly complicates glacier response to climate change, and ...
    • Structure and evolution of the drainage system of a Himalayan debris-covered glacier, and its relationship with patterns of mass loss 

      Benn, Douglas I.; Thompson, Sarah; Gulley, Jason; Mertes, Jordan; Luckman, Adrian; Nicholson, Lindsey (2017-09-22) - Journal article
      We provide the first synoptic view of the drainage system of a Himalayan debris-covered glacier and its evolution through time, based on speleological exploration and satellite image analysis of Ngozumpa Glacier, Nepal. ...
    • Tidewater glacier surges initiated at the terminus 

      Sevestre, Heïdi; Benn, Douglas I.; Luckman, Adrian; Nuth, Christopher; Kohler, Jack; Lindbäck, Katrin; Pettersson, Rickard (2018-04-26) - Journal article
      There have been numerous reports that surges of tidewater glaciers in Svalbard were initiated at the terminus and propagated up‐glacier, in contrast with downglacier‐propagating surges of land‐terminating glaciers. Most ...