Results 181 to 190 of about 45,272 (221)

Changes in the West Antarctic Ice Sheet

Science, 1991
The portion of the West Antarctic ice sheet that flows into the Ross Sea is thinning in some places and thickening in others. These changes are not caused by any current climatic change, but by the combination of a delayed response to the end of the last global glacial cycle and an internal instability. The near-future impact of the ice sheet on global
R B, Alley, I M, Whillans
openaire   +2 more sources

The East Antarctic Ice Sheet

2010
Antarctica is the fifth largest continent on the Earth with an area of 14,200,000 km2. About 98% of the surface of Antarctica is covered by an ice sheet that is 2,000 m thick on average. The volume of the ice sheet has changed in the course of time and reached a maximum during the late Wisconsin (Weichselian) ice age about 20,000 years ago.
Gunter Faure, Teresa M. Mensing
openaire   +1 more source

Mass balance of the Antarctic ice sheet

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2006
The Antarctic contribution to sea-level rise has long been uncertain. While regional variability in ice dynamics has been revealed, a picture of mass changes throughout the continental ice sheet is lacking. Here, we use satellite radar altimetry to measure the elevation change of 72% of the grounded ice sheet during the period 1992–2003 ...
Wingham, D.J., Shepherd, A., Muir, A., Marshall, G.J.   +3 more
openaire   +3 more sources

West Antarctic Ice Sheet Collapse?

Science, 1997
Charles R. Bentley (Perspectives, [21 Feb., p. 1077][1]) suggests that a useful estimate of the probability of a West Antarctic ice-sheet collapse in the next 100 years can be obtained by assuming it to be a random event occurring once every 100,000 years.
openaire   +1 more source

Lakes Beneath the Antarctic Ice Sheet

Nature, 1973
THE technique of radio-echo sounding of polar ice sheets is now well established1–3, and three seasons of radio-echo sounding from long range aircraft of the US Navy have been completed under a joint programme of the Scott Polar Research Institute and the US National Science Foundation.
G. K. A. OSWALD, G. DE Q. ROBIN
openaire   +1 more source

Antarctic ice sheet melting and climate

Science, 2020
Climate Change The massive West Antarctic Ice Sheet (WAIS) is now melting at an accelerated rate in response to anthropogenic greenhouse gas emissions, and exactly how this will affect global climate remains poorly understood. Widely available predictive global climate models do not adequately account for ice sheet physics.
openaire   +1 more source

TerraSAR-X observations over the antarctic ice sheet

2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
An incoherent correlation approach is used to derive ice motion fields for outlet glaciers through the Transantarctic Mountains, Antarctica. High-resolution repeat-pass, left-looking-mode TerraSAR-X data from 2009 were analyzed. Detailed ice velocity patterns on the Nimrod glacier basin and Starshot glacier are presented.
Floricioiu, Dana, Jezek, Kenneth, Eineder, Michael, Farness, Katy, Abdel Jaber, Wael, Yague-Martinez, Nestor   +5 more
openaire   +1 more source

Is the Antarctic ice sheet growing?

Nature, 1992
A brief review is presented of recent observations of surface accumulation on Antarctica. It is concluded that it is as yet too early to say with confidence whether the ice sheet has recently been growing or shrinking, given the variability in accumulation pattern and the larger uncertainties in melting and calving.
openaire   +1 more source

Stability of the Antarctic Ice Sheet during the pre-industrial Holocene

Nature Reviews Earth & Environment, 2022
Richard Jones, Joanne S Johnson, Yucheng Lin   +2 more
exaly  

Response of the East Antarctic Ice Sheet to past and future climate change

Nature, 2022
Chris R Stokes, Nerilie Abram, Michael Bentley   +2 more
exaly