ice flow
Strong tidal variations in ice flow observed across the entire Ronne Ice Shelf and adjoining ice streams
... the ice shelf and are characterized by an amphidromic point at the Ronne Ice Shelf calving front ...the ice flow of this region, which in turn provides a unique opportunity to gain insights ...
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Persistent tracers of historic ice flow in glacial stratigraphy near Kamb Ice Stream, West Antarctica
... Ross Ice Shelf exhibit significant in- ternal variability, with tidal forcing and frictional mechan- ics dictating velocity on hourly timescales (Anandakrish- nan et ...the ice plains of Whillans and Kamb ...
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Tidal bending of ice shelves as a mechanism for large-scale temporal variations in ice flow
... in ice flow: a non- linear basal sliding law (Gudmundsson, 2007, 2011; Rosier et ...effective ice shelf width (Minchew et ...in ice flow is impor- tant for several ...mean flow ...
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Greenland Ice Mapping Project: ice flow velocity variation at sub-monthly to decadal timescales
... If climate conditions similar to the present persisted over long periods (many millennia integrated over multiple glacial cycles), then the Køge Bugt terminus may have stayed near its current position for extended ...
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Representation of basal melting at the grounding line in ice flow models
... The results presented in this study show that the impact of sub-element melt parameterization and mesh resolution is different for the Weertman and Tsai friction laws. Mod- els relying on Weertman sliding laws are more ...
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Are long subglacial bedforms indicative of fast ice flow?
... the ow-set were important. Aylsworth & Shilts (1989a) commented that the most spectacular stream- lined drumlins in the study area occur immediately down-ice of sedimentary basins. The Thelon Sedimen- tary ...
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Spatial complexity of ice flow across the Antarctic Ice Sheet
... 72 Error in flow direction is imposed at one grid point of an otherwise parallel flow field to 73 simulate how errors in INSAR-measured velocity can cause the convergence pattern in 74 c[r] ...
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Increased ice flow in Western Palmer Land linked to ocean melting
... of ice is occurring at glaciers along the English Coast in Western Palmer ...of ice fl ow across the sector as a whole has increased by 13% (from ...optimized ice sheet model, we show that the rate of ...
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Ice-stream flow switching by up-ice propagation of instabilities along glacial marginal troughs
... Abstract. Ice-stream networks constitute the arteries of ice sheets through which large volumes of glacial ice are rapidly delivered from the continent to the ...in ice-stream networks have a ...
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Capabilities and performance of Elmer/Ice, a new-generation ice sheet model
... that ice sheet flow models, in their current state, were un- able to provide accurate forecast for the increase of polar ice sheet discharge and the associated contribution to sea level ...of ...
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Transition of flow regime along a marine-terminating outlet glacier in East Antarctica
... the flow regime of West Ragnhild Glacier, the widest glacier in Dronning Maud Land, Antarc- ...thicker ice (> 2000 m) than previously ...sediment. Ice flow speed observed in the downstream ...
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Halley Research Station, Antarctica: calving risks and monitoring strategies
... The main concern is the Brunt-Stancomb chasm. Ice flow modelling of the region predicts that this rift could widen and extend further inland (Khazendar et al., 2009). By comparing Landsat photos for this ...
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Interaction of marine ice-sheet instabilities in two drainage basins: simple scaling of geometry and transition time
... the ice flow is much larger than the perturbation timescale and thus the grounding-line retreat sets in not before the ice divide has almost reached its maximum displacement ...the ice divide ...
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Ice-stream response to ocean tides and the form of the basal sliding law
... most flow modelling work to date the basal slipperiness is tuned, sometimes using formal inverse methods, to mach measurements of velocity and ge- ...large ice masses ...large-scale ice-flow ...
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Recent rift formation and impact on the structural integrity of the Brunt Ice Shelf, East Antarctica
... Brunt Ice Shelf over the last ...the ice shelf during successive episodes of faster and slower growth, controlled by the heterogeneous struc- ture of the ice ...observed ice thickness and ...
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RIMBAY – a multi-approximation 3D ice-dynamics model for comprehensive applications: model description and examples
... existing ice models and to incorporate them into coupled climate models ...Revised Ice Model Based on frAnk pattYn, the multi-approximation ice sheet/ice shelf model R IMBAY ...cal ...
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Interaction between ice sheet dynamics and subglacial lake circulation: a coupled modelling approach
... Antarctic Ice Sheet as they flatten the ice sheets surface (Siegert et ...of ice flow. In this study, we apply a newly coupled ice sheet–lake flow model on an idealized ...
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Response of the large-scale subglacial drainage system of Northeast Greenland to surface elevation changes
... Abstract. The influence of subglacial water on the dynam- ics of ice flow has been the object of increasing interest in the past decade. In this study we focus on large-scale, long- term changes in surface ...
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Active subglacial lakes and channelized water flow beneath the Kamb Ice Stream
... Kamb Ice Stream (KIS), located on the eastern bound- ary of the Ross Ice Shelf, ceased streaming ice flow approx- imately 160 years ago (Retzlaff and Bentley, ...Antarctic Ice Sheet ...
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Moving Ice and Satellites: The Motion of Crevasses in Antarctica
... Antarctic ice sheet for signs of cracks and flows [19], in order to determine how and at what rate the ice sheet is ...the ice flow of course, instead of observing dunes, we can observe the ...
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