Modeled Arctic sea ice evolution through 2300 in CMIP5 extended RCPs The Cryosphere DOI 10.5194/tc-8-1195-2014 11 July 2014 Extended representative concentration pathway simulations through 2300 were completed for a subset of models, and here we examine the time evolution of Arctic sea ice in these simulations. RCPs">Read more
The sub-ice platelet layer and its influence on freeboard to thickness conversion of Antarctic sea ice The Cryosphere DOI 10.5194/tc-8-1031-2014 11 June 2014 This is an investigation to quantify the influence of the sub-ice platelet layer on satellite measurements of total freeboard and their conversion to thickness of Antarctic sea ice. Read more
Modelling environmental influences on calving at Helheim Glacier in eastern Greenland The Cryosphere DOI 10.5194/tc-8-827-2014 6 May 2014 Calving is an important mass-loss process for many glaciers worldwide, and has been assumed to respond to a variety of environmental influences. We present a grounded, flowline tidewater glacier model using a physically-based calving mechanism, applied to Helheim Glacier, eastern Greenland. Read more
Little Ice Age climate reconstruction from ensemble reanalysis of Alpine glacier fluctuations The Cryosphere DOI 10.5194/tc-8-639-2014 14 April 2014 Here the author analyses terminus position histories from an ensemble of seven glaciers in the Alps with a macroscopic model of glacier dynamics to derive a history of glacier equilibrium line altitude for the time span 400–2010 C.E. Read more
Fracture-induced softening for large-scale ice dynamics The Cryosphere DOI 10.5194/tc-8-587-2014 8 April 2014 To account for the macroscopic effect of fracture processes on large-scale viscous ice dynamics (i.e., ice-shelf scale), the authors apply a continuum representation of fractures and related fracture growth into the prognostic Parallel Ice Sheet Model and compare the results to observations. Read more
Seabed topography beneath Larsen C Ice Shelf from seismic soundings The Cryosphere DOI 10.5194/tc-8-1-2014 2 January 2014 Seismic reflection soundings of ice thickness and seabed depth were acquired on the Larsen C Ice Shelf in order to test a sub-ice shelf bathymetry model derived from the inversion of IceBridge gravity data. Read more
Antarctic ice-mass balance 2003 to 2012: regional reanalysis of GRACE satellite gravimetry measurements with improved estimate of glacial-isostatic adjustment based on GPS uplift rates The Cryosphere DOI 10.5194/tc-7-1499-2013 25 September 2013 We present regional-scale mass balances for 25 drainage basins of the Antarctic Ice Sheet (AIS) from satellite observations of the Gravity and Climate Experiment (GRACE) for time period January 2003 to September 2012. GRACE satellite gravimetry measurements with improved estimate of glacial-isostatic adjustment based on GPS uplift rates">Read more
Ice-shelf buttressing and the stability of marine ice sheets The Cryosphere DOI 10.5194/tc-7-647-2013 4 April 2013 Ice-shelf buttressing and the stability of marine-type ice sheets are investigated numerically. Buttressing effects are analysed for a situation where a stable grounding line is located on a bed sloping upwards in the direction of flow. Read more
Mechanisms causing reduced Arctic sea ice loss in a coupled climate model The Cryosphere DOI 10.5194/tc-7-555-2013 26 March 2013 The fully coupled climate model HadGEM1 produces one of the most accurate simulations of the historical record of Arctic sea ice seen in the IPCC AR4 multi-model ensemble. In this study, we examine projections of sea ice decline out to 2030, produced by two ensembles of HadGEM1 with natural and anthropogenic forcings included. Read more
Estimating the Greenland ice sheet surface mass balance contribution to future sea level rise using the regional atmospheric climate model MAR The Cryosphere DOI 10.5194/tc-7-469-2013 14 March 2013 To estimate the sea level rise originating from changes in surface mass balance of the Greenland ice sheet, we present 21st century climate projections obtained with the regional climate model MAR (Modèle Atmosphérique Régional), forced by output of three CMIP5 (Coupled Model Intercomparison Project Phase 5) general circulation models. MAR">Read more
