Ice Flow along the Byrd Station Strain Network, Antarctica
Abstract The flow of the Antarctic ice sheet near Byrd Station is modeled using surface net accumulation-rate data, surface strain-rate data, and core-hole tilting results. The model empirically allows for the progressive development of ice fabric and for values of the vertical strain-rate nearer to...
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Cambridge University Press (CUP)
1979
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Online Access: | http://dx.doi.org/10.1017/s0022143000014611 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000014611 |
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crcambridgeupr:10.1017/s0022143000014611 2024-10-06T13:43:49+00:00 Ice Flow along the Byrd Station Strain Network, Antarctica Whillans, I. M. 1979 http://dx.doi.org/10.1017/s0022143000014611 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000014611 en eng Cambridge University Press (CUP) Journal of Glaciology volume 24, issue 90, page 15-28 ISSN 0022-1430 1727-5652 journal-article 1979 crcambridgeupr https://doi.org/10.1017/s0022143000014611 2024-09-11T04:04:36Z Abstract The flow of the Antarctic ice sheet near Byrd Station is modeled using surface net accumulation-rate data, surface strain-rate data, and core-hole tilting results. The model empirically allows for the progressive development of ice fabric and for values of the vertical strain-rate nearer to zero at depth, and adjusts the strain-rates according to the effect of the climatic warming at the beginning of the Holocene. The validity of the model is supported by the agreements between calculated bed form and that measured by radar sounding, and between calculated and measured present-day ice-sheet thinning-rates. The ice was about 200 m thicker before thinning. The depth-age relationship for the Byrd Station ice core shows that the climatic change represented by the oxygen isotopic ratio of the ice began some 5000 years sooner than in north Greenland (Hammer and others 1978), but ended at about the same time. Article in Journal/Newspaper Antarc* Antarctic Antarctica Greenland ice core Ice Sheet Journal of Glaciology North Greenland Cambridge University Press Antarctic The Antarctic Greenland Byrd Tilting ENVELOPE(-54.065,-54.065,49.700,49.700) Byrd Station ENVELOPE(-119.533,-119.533,-80.017,-80.017) Journal of Glaciology 24 90 15 28 |
institution |
Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract The flow of the Antarctic ice sheet near Byrd Station is modeled using surface net accumulation-rate data, surface strain-rate data, and core-hole tilting results. The model empirically allows for the progressive development of ice fabric and for values of the vertical strain-rate nearer to zero at depth, and adjusts the strain-rates according to the effect of the climatic warming at the beginning of the Holocene. The validity of the model is supported by the agreements between calculated bed form and that measured by radar sounding, and between calculated and measured present-day ice-sheet thinning-rates. The ice was about 200 m thicker before thinning. The depth-age relationship for the Byrd Station ice core shows that the climatic change represented by the oxygen isotopic ratio of the ice began some 5000 years sooner than in north Greenland (Hammer and others 1978), but ended at about the same time. |
format |
Article in Journal/Newspaper |
author |
Whillans, I. M. |
spellingShingle |
Whillans, I. M. Ice Flow along the Byrd Station Strain Network, Antarctica |
author_facet |
Whillans, I. M. |
author_sort |
Whillans, I. M. |
title |
Ice Flow along the Byrd Station Strain Network, Antarctica |
title_short |
Ice Flow along the Byrd Station Strain Network, Antarctica |
title_full |
Ice Flow along the Byrd Station Strain Network, Antarctica |
title_fullStr |
Ice Flow along the Byrd Station Strain Network, Antarctica |
title_full_unstemmed |
Ice Flow along the Byrd Station Strain Network, Antarctica |
title_sort |
ice flow along the byrd station strain network, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1979 |
url |
http://dx.doi.org/10.1017/s0022143000014611 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000014611 |
long_lat |
ENVELOPE(-54.065,-54.065,49.700,49.700) ENVELOPE(-119.533,-119.533,-80.017,-80.017) |
geographic |
Antarctic The Antarctic Greenland Byrd Tilting Byrd Station |
geographic_facet |
Antarctic The Antarctic Greenland Byrd Tilting Byrd Station |
genre |
Antarc* Antarctic Antarctica Greenland ice core Ice Sheet Journal of Glaciology North Greenland |
genre_facet |
Antarc* Antarctic Antarctica Greenland ice core Ice Sheet Journal of Glaciology North Greenland |
op_source |
Journal of Glaciology volume 24, issue 90, page 15-28 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000014611 |
container_title |
Journal of Glaciology |
container_volume |
24 |
container_issue |
90 |
container_start_page |
15 |
op_container_end_page |
28 |
_version_ |
1812182311761870848 |