Results 11 to 20 of about 471,781 (349)

The role of subtemperate slip in thermally driven ice stream margin migration [PDF]

open access: yesThe Cryosphere, 2018
The amount of ice discharged by an ice stream depends on its width, and the widths of unconfined ice streams such as the Siple Coast ice streams in West Antarctica have been observed to evolve on decadal to centennial timescales.
Gagliardini, Olivier   +2 more
core   +5 more sources

Modeling the elastic transmission of tidal stresses to great distances inland in channelized ice streams [PDF]

open access: yesThe Cryosphere, 2014
Geodetic surveys suggest that ocean tides can modulate the motion of Antarctic ice streams, even at stations many tens of kilometers inland from the grounding line.
Simons, M., Thompson, J., Tsai, V. C.
core   +5 more sources

Clouds in the atmospheres of extrasolar planets. IV. On the scattering greenhouse effect of CO2 ice particles: Numerical radiative transfer studies [PDF]

open access: yes, 2013
Owing to their wavelengths dependent absorption and scattering properties, clouds have a strong impact on the climate of planetary atmospheres. Especially, the potential greenhouse effect of CO2 ice clouds in the atmospheres of terrestrial extrasolar ...
Kitzmann, D.   +2 more
core   +2 more sources

Dynamic behaviour of rutford ice stream [PDF]

open access: bronzeAnnals of Glaciology, 1982
The grounding-line region of Rutford Ice Stream was surveyed from the ground during 1978–79 and 1979–80, and from the air in 1980–81. Maps of surface elevation and ice thickness of an area of 1 000 km2allow the grounding line to be delineated and show that the ice stream consists of several distinct fingers of thick ice trending parallel to the flow ...
Stephenson, S.N, Doake, C.S.M
openaire   +4 more sources

Ice-sheet surging and ice-stream formation [PDF]

open access: bronzeAnnals of Glaciology, 1996
A simplified model of ice-sheet behaviour is described. It combines the assumptions of rapid ice flow, high viscous activation energy and realistic sediment-based sliding dynamics to form a non-linear diffusion-type equation which can display relaxation oscillations analogous to those of surging glaciers, and which may be relevant to large-scale surges
C. Johnson, Andrew C. Fowler
openaire   +3 more sources

Basal mechanics of Ice Stream B, west Antarctica: 2. Undrained plastic bed model [PDF]

open access: bronze, 2000
Based on the results of our studies of the physical conditions beneath Ice Stream B, we formulate a new analytical ice stream model, the undrained plastic bed model (henceforth the UPB model).
Engelhardt, Hermann F.   +2 more
core   +3 more sources

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

open access: yesAnnals of Glaciology vol 46, pp 97-105, 2007, 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   +3 more sources

Ice flow in the northeast Greenland ice stream [PDF]

open access: bronzeAnnals of Glaciology, 2000
AbstractWe have measured ice flow and detailed topography in northeastern Greenland using satellite-based synthetic-aperture radar (SAR) interferometry. The subject of this study is the large ice stream that drains this quadrant of the ice sheet. A single SAR interferogram allows the measurement of one component of motion over a several-day-long ...
Joughin, IR, Fahnestock, M, Bamber, JL
openaire   +3 more sources

The role of ice stream dynamics in deglaciation [PDF]

open access: yesJournal of Geophysical Research: Earth Surface, 2016
AbstractSince the mid‐Pleistocene transition, deglaciation has occurred only after ice sheets have grown large while experiencing several precession and obliquity cycles, indicating that large ice sheets are more sensitive to Milankovitch forcing than small ice sheets are.
Alexander A. Robel   +3 more
openaire   +7 more sources

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   +3 more sources

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