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ice velocity

On the assimilation of ice velocity and concentration data into large-scale sea ice models

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 ...

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Tidally induced velocity variations of the Beardmore Glacier, Antarctica, and their representation in satellite measurements of ice velocity

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 ...

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Stand-alone single-frequency GPS ice velocity observations on Nordenski¨oldbreen, Svalbard

Stand-alone single-frequency GPS ice velocity observations on Nordenski¨oldbreen, Svalbard

... the ice-flow velocities at the beginning of July during the period with the highest ...the ice velocity is significantly correlated with air temperature and melt ...rates. Velocity ...

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Subglacial roughness of the Greenland Ice Sheet: relationship with contemporary ice velocity and geology

Subglacial roughness of the Greenland Ice Sheet: relationship with contemporary ice velocity and geology

... in Dawes, 2009) under the inland ice in central Greenland. However, the exact extent of the presence of the underly- ing basaltic rocks cannot be accurately determined (Dawes, 2009). At each margin of the GrIS ...

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A comparison of basal reflectivity and ice velocity in East Antarctica

A comparison of basal reflectivity and ice velocity in East Antarctica

... the ice varies substan- tially from Taylor Dome to South Pole (Price et ...with ice thickness, layer geometry or basal topog- ...warmer ice temperatures ...

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Simulating ice thickness and velocity evolution of Upernavik Isstrøm 1849–2012 by forcing prescribed terminus positions in ISSM

Simulating ice thickness and velocity evolution of Upernavik Isstrøm 1849–2012 by forcing prescribed terminus positions in ISSM

... glacier velocity and mass balance are known to be highly responsive to terminus position ...for ice flow models to reproduce observed ice margin ...the Ice Sheet Sys- tem Model (ISSM; Larour ...

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Influence of anisotropy on velocity and age distribution at Scharffenbergbotnen blue ice area

Influence of anisotropy on velocity and age distribution at Scharffenbergbotnen blue ice area

... the ice sur- face (see ...the ice velocity was fastest along ...dark-colored ice that was about 1 m above the surrounding ice, and which we interpret as the confluence of the ice ...

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Patterns of glacial erosion and deposition in Prydz Bay and the past behaviour of the Lambert Glacier

Patterns of glacial erosion and deposition in Prydz Bay and the past behaviour of the Lambert Glacier

... 1979 showed that abrasion by ice depended on vertical stress as much as ice velocity, thus explaining the common observation of maximum depths of erosion beneath the thickest parts of gl[r] ...

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Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet

Modelling seasonal meltwater forcing of the velocity of land-terminating margins of the Greenland Ice Sheet

... an ice sheet model, the results broadly reproduce the observed velocity patterns of the GrIS margin (Hewitt, 2013; Pimentel and Flowers, ...to ice flow models have not been applied to real domains of ...

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Variability in ice motion at a land-terminating Greenlandic outlet glacier: the role of channelized and distributed drainage systems

Variability in ice motion at a land-terminating Greenlandic outlet glacier: the role of channelized and distributed drainage systems

... in ice velocity by reducing basal fric- tion in adjacent unchannelized areas of the ...high-resolution ice velocity records to demonstrate the importance of variability in meltwater input with ...

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Monte Carlo ice flow modeling projects a new stable configuration for Columbia Glacier, Alaska, c. 2020

Monte Carlo ice flow modeling projects a new stable configuration for Columbia Glacier, Alaska, c. 2020

... of ice-covered area from its terminus ...pre-retreat ice surface elevation profile (Meier et ...pre-retreat ice surface velocity profile (Meier et ...surface ice velocity at ζ = ...

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A dynamic ice-structure interaction model for ice-induced vibrations by using Van der Pol equation

A dynamic ice-structure interaction model for ice-induced vibrations by using Van der Pol equation

... normalized ice force (red line) and structural response (normalized displacement, blue dash line) transition during time histories, three representative velocities are picked from three distinctive structural ...

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Automated mapping of glacial overdeepenings beneath contemporary ice sheets: Approaches and potential applications

Automated mapping of glacial overdeepenings beneath contemporary ice sheets: Approaches and potential applications

... with ice velocity ...measured ice velocity is not necessarily indicative of mean ice velocity over the time scale of overdeepening formation, and, third, the complexity of ...

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Ice streams in the Laurentide Ice Sheet: Identification, characteristics and comparison to modern ice sheets

Ice streams in the Laurentide Ice Sheet: Identification, characteristics and comparison to modern ice sheets

... Ice velocity is a function of stresses within the ice mass and the drag of the bed constitutes an important component of the force balance (Paterson, ...fast ice fl ow (Bell et ...fast ...

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Greenland Ice Mapping Project: ice flow velocity variation at sub-monthly to decadal timescales

Greenland Ice Mapping Project: ice flow velocity variation at sub-monthly to decadal timescales

... by ice velocity and radar depth-sounding data (Morlighem et ...thinner ice at Køge Bugt, since the distance a stress perturbation at the terminus is transmitted upstream should scale with ice ...

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Seasonal dynamics of Totten Ice Shelf controlled by sea ice buttressing

Seasonal dynamics of Totten Ice Shelf controlled by sea ice buttressing

... its ice shelf (TIS) as thinning rapidly (Pritchard et ...of ice thickening, thinning, acceleration, and slowdown (Paolo et ...surface velocity measurements collected at different times through- out ...

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Design, Fabrication and Testing Of High Velocity Measuring Devices Used In Bird/Ice Pellet Canister Launcher Setup

Design, Fabrication and Testing Of High Velocity Measuring Devices Used In Bird/Ice Pellet Canister Launcher Setup

... the velocity of a solid particle (bird/ice pellet) can be ...high velocity of the fired canister ice pallet through the ice pellet ...high velocity test is conducting to the ...

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Benchmark experiments for higher-order and full-Stokes ice sheet models (ISMIP–HOM)

Benchmark experiments for higher-order and full-Stokes ice sheet models (ISMIP–HOM)

... predictive ice sheet modeling, the ice sheet modeling community has evolved considerably over the last ...complex ice sheet models, with varying degrees of approximations to the Stokes ...large-scale ...

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Analysis of Collapsibility of Canister at High Speed in Ice Pellet Launcher Using ABAQUS/Explicit Software

Analysis of Collapsibility of Canister at High Speed in Ice Pellet Launcher Using ABAQUS/Explicit Software

... canister. Ice-Pellet Launcher is a Test Facility that launches ice pellets to simulate ice impact on aircraft and ...When ice pellets and slabs hit the aircraft, which fly at high speeds, ...

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Finite Element Analysis of Tire Traction Using a Rubber Ice Friction Model

Finite Element Analysis of Tire Traction Using a Rubber Ice Friction Model

... or ice is very low and that re- sults in reducing vehicle traction forces and potential traffic ...the ice surface, being not far removed from its melting point, reacts itself very sensitively to pressure, ...

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