ice sheet
Antarctic bedrock topography uncertainty and ice sheet stability
... for ice sheet ...on ice sheet models [Sun et ...direct ice thickness measurements are unavailable, bedrock elevation uncertainty can greatly exceed this [Fretwell et ...Antarctic ...
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An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAP v1)
... numerical ice sheet modelling of the Antarctic Ice ...the ice sheet configuration (e.g. ice surface and ice thickness) and boundary conditions, such as the surface air ...
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Seasonal to decadal variability in ice discharge from the Greenland Ice Sheet
... of ice they export, or discharge, from the ice ...of ice-sheet-wide discharge have been previously derived, higher-resolution records are required to fully constrain the temporal response of ...
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High speed computing of ice thickness equation for ice sheet model
... (2-D) ice flow thermodynamics coupled model acts as a vital role for visualizing the ice sheet behaviours of the Antarctica region and the climate ...the ice thickness ...the ice ...
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Capabilities and performance of Elmer/Ice, a new-generation ice sheet model
... For ice sheet boundary conditions, this is a problem occurring typically at the bedrock interface in the presence of sliding where a Dirichlet-type non-penetration condition has to be applied, ...total ...
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Marine ice sheet instability and ice shelf buttressing of the Minch Ice Stream, northwest Scotland
... of ice sheet change to better understand the dynamics of marine ice sheets over millennial ...Bay Ice Stream, Antarctica, since the Last Glacial Maximum (LGM) shows that the episodic retreat ...
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Marine ice sheet instability and ice shelf buttressing of the Minch ice stream, Northwest Scotland
... of ice sheet change to better understand the dynamics of marine ice sheets over millennial ...Bay Ice Stream, Antarctica, since the Last Glacial Maximum (LGM) shows that the episodic retreat ...
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The Potsdam Parallel Ice Sheet Model (PISM-PIK) – Part 2: Dynamic equilibrium simulation of the Antarctic ice sheet
... Antarctic ice sheet-shelf system, in- cluding observed features such as the fast flow of ice streams and the position of ice ...the ice-covered area supports the PISM-PIK treatment of ...
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Ice streams in the Laurentide Ice Sheet: Identification, characteristics and comparison to modern ice sheets
... Antarctic ice streams (Engelhardt et ...of ice streams in Antarctica (Alley et ...of ice streams in Greenland has also been hypothesised (Zwally et ...the ice- fl ow pattern of the ice ...
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Evidence of meltwater retention within the Greenland ice sheet
... Greenland ice sheet mass losses have increased in recent decades with more than half of these attributed to sur- face meltwater ...Here, ice sheet surface meltwater runoff and proglacial river ...
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The GRISLI ice sheet model (version 2.0): calibration and validation for multi-millennial changes of the Antarctic ice sheet
... simulated ice sheet volume is shown over the last 400 ...Antarctic ice sheet volume increase at the LGM (21 ka BP) relative to pre-industrial corresponds to about − 10 to − 20 m of global ...
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The Dubawnt Lake palaeo-ice stream: evidence for dynamic ice sheet behaviour on the Canadian Shield and insights regarding the controls on ice-stream location and vigour
... influenced ice-stream activity by lubricating the bed over the downstream crystalline bedrock, but it is unlikely that it operated over a pervasively deforming till ...the ice stream challenges the view ...
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Elevation change measurements of the Greenland Ice Sheet
... Greenland Ice Sheet since 1992. Results have shown that the ice sheet is essentially stable at this location, with GPS-determined strain and elevation change rates in good accordance with ...
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Refreezing on the Greenland ice sheet: a comparison of parameterizations
... upper ice and snow ...involving ice sheet evolution over centuries to millennia it is, however, still too computationally expensive to explic- itly include this process, and parameterizations will ...
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Microbial nitrogen cycling on the Greenland Ice Sheet
... the ice sheet margins: an estimated ...the ice sheet zone ...or ice sheet zones of ice sheets, these esti- mates are consistent with previous studies on ...
12
Antarctic ice-sheet response to atmospheric CO
... The ice-sheet model is symmetric around the South Pole. Within the ice sheet, flow velocities and temperatures are computed with a vertical resolution of 12 ...and ice thickness of ...
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Ice-dynamic projections of the Greenland ice sheet in response to atmospheric and oceanic warming
... Greenland ice sheet in the coming ...enhanced ice discharge from calving glaciers have contributed ...higher-order ice flow model, spun up to present day, to simulate future ice volume ...
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Assessment of the Greenland ice sheet–atmosphere feedbacks for the next century with a regional atmospheric model coupled to an ice sheet model
... Arctic ice caps and the Greenland ice sheet (Rignot et ...land ice sheet (GrIS) is governed by variations of ice dynam- ics and surface mass balance (SMB), the latter being ...
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ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions
... steady-state ice conditions. It allows for the rapid determination of paleo- ice sheet configurations, which is desirable when matching observations of ...Sea Ice Sheet, a relatively ...
10
A constraint upon the basal water distribution and thermal state of the Greenland Ice Sheet from radar bed echoes
... the ice-sheet interior, such as close to the NorthGRIP ...the ice sheet, this is where bed-echo reflectivity as a water diagnos- tic should be more ...smoother ice-sheet ...
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