Results 51 to 60 of about 401,804 (204)

Estimation of ice fabric within Whillans Ice Stream using polarimetric phase-sensitive radar sounding

open access: yesAnnals of Glaciology, 2020
Here we use polarimetric measurements from an Autonomous phase-sensitive Radio-Echo Sounder (ApRES) to investigate ice fabric within Whillans Ice Stream, West Antarctica.
Thomas M. Jordan   +3 more
doaj   +1 more source

Ice stream behaviour and deglaciation of the Scandinavian Ice Sheet in the Kuittijärvi area, Russian Karelia [PDF]

open access: yesBulletin of the Geological Society of Finland, 2008
Glacial landforms of the Lake Kuittijärvi area, Russian Karelia, which covers an area of more than 7000 km2 , were studied in detail using aerial photography and satellite imagery methods and on-site field observations.
N. Putkinen, J.-P. Lunkka
doaj   +1 more source

The BEAMISH hot water drill system and its use on the Rutford Ice Stream, Antarctica

open access: yesAnnals of Glaciology, 2021
During the 2018/19 Antarctic field season, the British Antarctic Survey (BAS) Basal conditions on Rutford Ice Stream: BEd Access, Monitoring and Ice Sheet History’ (BEAMISH) project drilled three holes through the Rutford Ice Stream, West Antarctica.
Paul G. D. Anker   +3 more
doaj   +1 more source

Analytical solutions for the surface response to small amplitude perturbations in boundary data in the shallow-ice-stream approximation [PDF]

open access: yesThe Cryosphere, 2008
New analytical solutions describing the effects of small-amplitude perturbations in boundary data on flow in the shallow-ice-stream approximation are presented.
G. H. Gudmundsson
doaj  

Analytical Models of Exoplanetary Atmospheres. IV. Improved Two-stream Radiative Transfer for the Treatment of Aerosols [PDF]

open access: yes, 2017
We present a novel generalization of the two-stream method of radiative transfer, which allows for the accurate treatment of radiative transfer in the presence of strong infrared scattering by aerosols.
Heng, Kevin, Kitzmann, Daniel
core   +2 more sources

Insights into ice stream dynamics through modelling their response to tidal forcing [PDF]

open access: yesThe Cryosphere, 2014
The tidal forcing of ice streams at their ocean boundary can serve as a natural experiment to gain an insight into their dynamics and constrain the basal sliding law.
S. H. R. Rosier   +2 more
doaj   +1 more source

Computation of a combined spherical-elastic and viscous-half-space earth model for ice sheet simulation [PDF]

open access: yes, 2006
This report starts by describing the continuum model used by Lingle & Clark (1985) to approximate the deformation of the earth under changing ice sheet and ocean loads.
Cathles   +7 more
core   +2 more sources

The motion of ice stream margins [PDF]

open access: yesJournal of Fluid Mechanics, 2013
AbstractThe recent article by Schoof (J. Fluid Mech., vol. 712, 2012, pp. 552–578) provides a technically demanding solution to the problem of determining ice-stream margin evolution. It is important in opening the way to the future theoretical description of how the ice sheets will melt and sea level will rise as the climate warms.
openaire   +3 more sources

On the pulling power of ice streams [PDF]

open access: yesJournal of Glaciology, 1992
AbstractGravity wants to pull an ice sheet to the center of the Earth, but cannot because the Earth’s crust is in the way, so ice is pushed out sideways instead. Or is it? The ice sheet “sees” nothing preventing it from spreading out except air, which is much less massive than ice. Therefore, does not ice rush forward to fill this relative vacuum; does
openaire   +2 more sources

Meltwater generation in ice stream shear margins: case study in Antarctic ice streams

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2022
Liquid water within glacier ice and at the glacier beds exerts a significant control on ice flow and glacier stability through a number of processes, including altering the rheology of the ice and lubricating the bed. Some of this water is generated as melt in regions of rapid deformation, including shear margins, due to heating by viscous dissipation.
Meghana Ranganathan   +3 more
openaire   +2 more sources

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