Results 71 to 80 of about 45,272 (221)

Millennial‐Scale Vulnerability of the Antarctic Ice Sheet to Regional Ice Shelf Collapse

open access: yesGeophysical Research Letters, 2019
The Antarctic Ice Sheet (AIS) remains the largest uncertainty in projections of future sea level rise. A likely climate‐driven vulnerability of the AIS is thinning of floating ice shelves resulting from surface‐melt‐driven hydrofracture or incursion of ...
Daniel F. Martin   +2 more
doaj   +1 more source

Antarctic-wide annual ice flow maps from Landsat 8 imagery between 2013 and 2019

open access: yesInternational Journal of Digital Earth, 2021
Ice velocity constitutes a key parameter for quantifying ice-sheet discharge rates and is thus crucial for improving the coupled models of the Antarctic ice sheet towards accurately predict its contribution to future global sea-level rise.
Qiang Shen   +6 more
doaj   +1 more source

Forecasting Climate Change Using a Multivariate Cointegrated System

open access: yesOxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT A cointegrated vector equilibrium correction model of key climate variables including sea surface temperature, ocean heat content, Arctic sea‐ice extent and sea‐level change is built, driven by radiative forcing in which a stochastic trend arises due to anthropogenic emissions of greenhouse gases.
Jennifer L. Castle   +3 more
wiley   +1 more source

Interhemispheric coupling, the West Antarctic Ice Sheet and warm Antarctic interglacials [PDF]

open access: yes, 2010
Ice core evidence indicates that even though atmospheric CO2 concentrations did not exceed 300 ppm at any point during the last 800 000 years, East Antarctica was at least 3–4 C warmer than preindustrial (CO2 280 ppm) in each of the last four ...
Edwards, N.R.   +6 more
core   +5 more sources

Grounding-line flux formula applied as a flux condition in numerical simulations fails for buttressed Antarctic ice streams [PDF]

open access: yesThe Cryosphere, 2018
Currently, several large-scale ice-flow models impose a condition on ice flux across grounding lines using an analytically motivated parameterisation of grounding-line flux.
R. Reese   +4 more
doaj   +1 more source

Comparison and analysis of CryoSat DEM and the several Antarctic DEM

open access: yes地质科技通报, 2021
Antarctica is covered by huge snow and ice, and its geological structure is bounded by the Trans-Antarctic Mountains, and is generally divided into the East Antarctic Shield and the West Antarctic Active Zone.
Wenli Yue   +4 more
doaj   +1 more source

Ice sheets as a significant source of highly reactive nanoparticulate iron to the oceans [PDF]

open access: yes, 2014
The Greenland and Antarctic Ice Sheets cover ~\n10% of global land surface, but are rarely considered as active components of the global iron cycle. The ocean waters around both ice sheets harbour highly productive coastal ecosystems, many of which are ...
Benning, Liane G.   +9 more
core   +2 more sources

The potential of marine ice cliff instability for Amundsen Sea glaciers revisited

open access: yesAnnals of Glaciology
Marine ice cliff instability (MICI) is the hypothesis that self-sustained retreat of ice sheets can be initiated when sufficiently tall ice cliffs are exposed.
Sainan Sun, Gudmundur Hilmar Gudmundsson
doaj   +1 more source

Modeling Ice Shelf/Ocean Interaction in Antarctica: A Review [PDF]

open access: yes, 2016
The most rapid loss of ice from the Antarctic Ice Sheet is observed where ice streams flow into the ocean and begin to float, forming the great Antarctic ice shelves that surround much of the continent.
Adrian Jenkins   +6 more
core   +5 more sources

Topographic steering of enhanced ice flow at the bottleneck between East and West Antarctica [PDF]

open access: yes, 2018
Hypothesized drawdown of the East Antarctic Ice Sheet (EAIS) through the ‘bottleneck’ zone between East and West Antarctica would have significant impacts for a large proportion of the Antarctic Ice Sheet.
Arne V. Olesen   +50 more
core   +3 more sources

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