[PDF] Top 20 Hydrostatic grounding line parameterization in ice sheet models
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Hydrostatic grounding line parameterization in ice sheet models
... of grounding lines, where ice detaches from the un- derlying bedrock and becomes afloat in the ocean, is possi- ble using satellite remote sensing with either visible imagery (Bohlander and Scambos, 2007) ... See full document
13
Ice shelf fracture parameterization in an ice sheet model
... thick ice shelf persists to buttresses the upstream ...little ice shelf left in the IceF1 ex- periment, it is clear that the damage field close to the ground- ing line has a major role in the ... See full document
12
Simulated dynamic regrounding during marine ice sheet retreat
... Many ice sheet models use a power-law relationship be- tween the basal shear stress and sliding velocity, such as that of Weertman ...These models require very fine mesh resolution due to the ... See full document
12
Representation of basal melting at the grounding line in ice flow models
... of grounding lines and basal fric- tion in the grounding zone, little has been done about the impact of the numerical treatment of ocean-induced basal melting in this ...the ice sheet modeling ... See full document
12
Sea-level response to melting of Antarctic ice shelves on multi-centennial timescales with the fast Elementary Thermomechanical Ice Sheet model (f.ETISh v1.0)
... the grounding-line flux conditions (SGL and TGL) that make the model resolution ...independent. Models that are not based on such heuristics have to resolve grounding-line migration at ... See full document
28
Sensitivity of the dynamics of Pine Island Glacier, West Antarctica, to climate forcing for the next 50 years
... the grounding line of Pine Island Glacier is en- gaged on an unstable 40 km retreat and that the glacier is con- trolled by marine ice sheet ...limited ice front retreats do not affect ... See full document
12
Stopping the flood: could we use targeted geoengineering to mitigate sea level rise?
... climate models for the Amund- sen Sea sector of West Antarctica under medium- to high- end emissions scenarios (Bracegirdle et ...climate models running high-end emissions scenarios (Bracegirdle et ...the ... See full document
13
Ice stream grounding-line stability on a reverse bed slope
... Many ice streams possess beds that are below sea level and typically deepen inland on a reverse-slope 9 ...that ice discharge increases rapidly with water depth 3 , and in the absence of lateral-drag ... See full document
25
Ice-shelf buttressing and the stability of marine ice sheets
... flow- line models. It will be argued below that ice-shelf buttressing is inherently a three-dimensional effect and that being able to accurately account for variations in stresses in both hori- ... See full document
9
The sensitivity of the Greenland Ice Sheet to glacial–interglacial oceanic forcing
... hybrid ice-sheet–shelf model including a parameterization of the basal melting rate at the GrIS marine margins, the model simulates the evolution of the whole ice sheet under tem- ... See full document
18
Grounding line transient response in marine ice sheet models
... flow- line representation. The three remaining models solve the SSA, and are therefore vertically integrated and thus compu- tationally ...grounded ice and floating ice shelf are solved on two ... See full document
12
Parameterization of basal friction near grounding lines in a one-dimensional ice sheet model
... sliding ice streams, basal resistance is controlled by the underlying water-laden plastic till (Tu- laczyk et ...the ice base, leading to reduced basal friction (Tulaczyk et ...many ice sheet ... See full document
21
Parameterising the grounding line in flow-line ice sheet models
... an ice sheet model with two horizontal dimensions, use of H2 GB2 instead of LI B1 would represent a significant (at least factor 8) saving in computational ...the grounding line problem inher- ... See full document
15
A technique for generating consistent ice sheet initial conditions for coupled ice sheet/climate models
... generating ice sheet preindustrial initial conditions for long-term coupled ice sheet/climate model simulations is developed and demon- strated over the Greenland ice sheet using ... See full document
13
Two independent methods for mapping the grounding line of an outlet glacier – an example from the Astrolabe Glacier, Terre Adélie, Antarctica
... a grounding line that is significantly more seaward than those determined by Bindschadler et ...other grounding line has been proposed over this ...or ice shelves the rela- tive ... See full document
16
A glacial systems model configured for large ensemble analysis of Antarctic deglaciation
... acteristics, ice thickness, internal ice temperature and veloc- ity fields, geothermal heat flux, ...the ice sheet oper- ates on order 100 kyr timescales; the model must be run for at least a ... See full document
22
On the importance of the albedo parameterization for the mass balance of the Greenland ice sheet in EC-Earth
... the ice sheet should not grow significantly larger, nor should it retreat far from its present-day ...albedo parameterization as a calibration tool, since the sensitivity of ice-sheet ... See full document
17
An ice sheet model validation framework for the Greenland ice sheet
... fixed ice sheet ...the ice sheet as a whole, we note that the model clearly underestimates speeds for some of the major outlet glaciers (see also ... See full document
16
Coupling of climate models and ice sheet models by surface mass balance gradients: application to the Greenland Ice Sheet
... The SMB gradient method is designed to improve asyn- chronous coupling between climate models and ice sheet models. As shown here, it can also be used as a stand-alone SMB forcing module. A ... See full document
18
Interaction of marine ice-sheet instabilities in two drainage basins: simple scaling of geometry and transition time
... Antarctic Ice Sheet (WAIS) by basin-scale numerical modeling suggest that a destabilization of parts of it is under way (Katz and Worster, 2010; Favier et ...marine ice-sheet instability ... See full document
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