Ice Velocity and Dynamics
A comparison of basal reflectivity and ice velocity in East Antarctica
... termine ice attenuation and relative basal reflectivity across the major catchments funneling ice from East Antarctica to the Ross Ice ...to ice balance velocity and find a general ...
6
Seasonal dynamics of Totten Ice Shelf controlled by sea ice buttressing
... Totten Ice Shelf have em- ployed surface velocity measurements to estimate its mass balance and understand its sensitivities to interannual changes in climate ...wherein ice veloc- ity fluctuates ...
14
Past and future dynamics of the Brunt Ice Shelf from seabed bathymetry and ice shelf geometry
... Brunt Ice Shelf and the bed Satellite images and aerial photographs show that the MIR have changed in their extent and morphology at different times in the recent ...in ice shelf draft and minor calving ...
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Stand-alone single-frequency GPS ice velocity observations on Nordenski¨oldbreen, Svalbard
... 2 Department of Earth Sciences, Uppsala University, Uppsala, Sweden Received: 24 June 2010 – Published in The Cryosphere Discuss.: 14 July 2010 Revised: 8 December 2010 – Accepted: 9 December 2010 – Published: 15 ...
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Numerical modelling of thermodynamics and dynamics of sea ice in the Baltic Sea
... 2.5 Ice dynamics As already stated, the dynamic module of the sea ice model is responsible for simulating changes in the ice concentration A i and thickness h i , produced by the action of ...
20
Influence of anisotropy on velocity and age distribution at Scharffenbergbotnen blue ice area
... pled ice-flow model to study the dynamics of the glacier inside Scharffenbergbotnen valley, Dronning Maud Land, ...bare ice ablation area. The ablation ice area is notable for having old ...
15
Semi-brittle rheology and ice dynamics in DynEarthSol3D
... the ice flow is gener- ated entirely by a gradient in ice thickness and we employ a jump in boundary conditions (from freely slipping or frozen to floating) at the grounding ...a velocity condition ...
16
Frazil ice growth rate and dynamics in mixed layers and sub ice shelf plumes
... means larger crystals). The first effect is readily under- stood: secondary nucleation creates tiny crystals. The sec- ond is more subtle because gravitational removal tends to remove larger crystals. However, secondary ...
14
Fracture-induced softening for large-scale ice dynamics
... Floating ice shelves can exert a retentive and hence stabilizing force onto the inland ice sheet of ...protective ice shelves, leading to accelerated ice flow and hence to a sea- level ...
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Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet
... ice dynamics system to reproduce measured velocities at the ice margin remains a key challenge for validating the present understanding of the system and constraining the impact of increasing surface ...
21
Sea-ice dynamics strongly promote Snowball Earth initiation and destabilize tropical sea-ice margins
... zonal velocity balance shows that this eastward wind is mainly balanced by ocean stresses and the Coriolis ...sea ice moves towards the equator. Closer to the sea-ice margin, that is equatorward of ...
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The influence of a model subglacial lake on ice dynamics and internal layering
... soft ice in between higher viscosity ice ...causes velocity changes in the vertical to be concentrated in the lower layers of an ice sheet but also means that for areas with varying basal ...
10
Subglacial roughness of the Greenland Ice Sheet: relationship with contemporary ice velocity and geology
... Greenland Ice Sheet (GrIS) is poorly constrained both in its bulk properties, for example geology, the presence of sediment, and the pres- ence of water, and interfacial conditions, such as roughness and bed ...to ...
23
On the assimilation of ice velocity and concentration data into large-scale sea ice models
... sea ice models designed for climate studies has started about 15 years ...sea ice concentration and velocity obser- vations into a global sea ice-ocean model, we analyze here results from a ...
15
Dark ice dynamics of the south-west Greenland Ice Sheet
... of ice algae in controlling interannual dynamics in darkening, but note that there is currently not sufficient evidence to formally test this ...dark ice variability which ice algae cannot ...
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Tidally induced velocity variations of the Beardmore Glacier, Antarctica, and their representation in satellite measurements of ice velocity
... ence ice velocity, both linearly and ...of ice discharge, which assume dis- placement between satellite passes to be consistent and rep- resentative of annual ...zontal velocity variation in ...
10
Greenland Ice Mapping Project: ice flow velocity variation at sub-monthly to decadal timescales
... new ice velocity maps pro- duced by the Greenland Ice Mapping Project (GIMP) using Landsat 8 and Copernicus Sentinel 1A/B ...the ice sheet and find little in the way of statistically signif- ...
17
Micro-Dynamics of ICE (Micro-DICE)
... of ice in glaciers, polar ice caps and sea ice is a major challenge, especially in a time of changing ...of ice, including its rheology and transport ...of ice microstructures are ...
8
Sea ice dynamics solvers in the MITgcm
... and Lipscomb, 2008) where adding a pseudo-elastic term reduces the time step. 114[r] ...
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Numerical modeling of ice-sheet dynamics
... Zeroth order model – looses validity in regions where higher-order terms become important:.. Regions of high curvature of the surface..[r] ...