Channelized Ice Melting in the Ocean Boundary Layer Beneath Pine Island Glacier, Antarctica
The article of record as published may be found at http://dx.doi.org/10.1126/science.1239373 Ice shelves play a key role in the mass balance of the Antarctic ice sheets by buttressing their seawardflowing outlet glaciers; however, they are exposed to the underlying ocean and may weaken if ocean ther...
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ftnavalpschool:oai:calhoun.nps.edu:10945/48294 2024-06-09T07:40:31+00:00 Channelized Ice Melting in the Ocean Boundary Layer Beneath Pine Island Glacier, Antarctica Stanton, Timothy P. Shaw, W.J. Truffer, M. Corr, H.F.J. Peters, L.E. Riverman, K.L. Bindschadler, R. Holland, D.M. Anandakrishnan, S. Naval Postgraduate School (U.S.) Oceanography 2013-09-13 4 p. application/pdf https://hdl.handle.net/10945/48294 unknown Science 341 (September 2013), p. 1236-1239 https://hdl.handle.net/10945/48294 This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. Article 2013 ftnavalpschool 2024-05-15T00:46:59Z The article of record as published may be found at http://dx.doi.org/10.1126/science.1239373 Ice shelves play a key role in the mass balance of the Antarctic ice sheets by buttressing their seawardflowing outlet glaciers; however, they are exposed to the underlying ocean and may weaken if ocean thermal forcing increases. An expedition to the ice shelf of the remote Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet that has rapidly thinned and accelerated in recent decades, has been completed. Observations from geophysical surveys and long-term oceanographic instruments deployed down bore holes into the ocean cavity reveal a buoyancy-driven boundary layer within a basal channel that melts the channel apex by 0.06 meter per day, with near-zero melt rates along the flanks of the channel. A complex pattern of such channels is visible throughout the Pine Island Glacier shelf. NSF’s Office of Polar Programs NSF grant ANT-0732926 New York University Abhu Dabi grant 1204 NSF’s Office of Polar Programs NSF grant ANT-0732926 NASA’s Cryospheric Sciences Program New York University Abhu Dabi grant 1204 Natural Environment Research Council–British Antarctic Survey Article in Journal/Newspaper Antarc* Antarctic Antarctica British Antarctic Survey Ice Sheet Ice Shelf Ice Shelves Pine Island Pine Island Glacier Naval Postgraduate School: Calhoun Antarctic Pine Island Glacier ENVELOPE(-101.000,-101.000,-75.000,-75.000) The Antarctic West Antarctic Ice Sheet |
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Naval Postgraduate School: Calhoun |
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The article of record as published may be found at http://dx.doi.org/10.1126/science.1239373 Ice shelves play a key role in the mass balance of the Antarctic ice sheets by buttressing their seawardflowing outlet glaciers; however, they are exposed to the underlying ocean and may weaken if ocean thermal forcing increases. An expedition to the ice shelf of the remote Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet that has rapidly thinned and accelerated in recent decades, has been completed. Observations from geophysical surveys and long-term oceanographic instruments deployed down bore holes into the ocean cavity reveal a buoyancy-driven boundary layer within a basal channel that melts the channel apex by 0.06 meter per day, with near-zero melt rates along the flanks of the channel. A complex pattern of such channels is visible throughout the Pine Island Glacier shelf. NSF’s Office of Polar Programs NSF grant ANT-0732926 New York University Abhu Dabi grant 1204 NSF’s Office of Polar Programs NSF grant ANT-0732926 NASA’s Cryospheric Sciences Program New York University Abhu Dabi grant 1204 Natural Environment Research Council–British Antarctic Survey |
author2 |
Naval Postgraduate School (U.S.) Oceanography |
format |
Article in Journal/Newspaper |
author |
Stanton, Timothy P. Shaw, W.J. Truffer, M. Corr, H.F.J. Peters, L.E. Riverman, K.L. Bindschadler, R. Holland, D.M. Anandakrishnan, S. |
spellingShingle |
Stanton, Timothy P. Shaw, W.J. Truffer, M. Corr, H.F.J. Peters, L.E. Riverman, K.L. Bindschadler, R. Holland, D.M. Anandakrishnan, S. Channelized Ice Melting in the Ocean Boundary Layer Beneath Pine Island Glacier, Antarctica |
author_facet |
Stanton, Timothy P. Shaw, W.J. Truffer, M. Corr, H.F.J. Peters, L.E. Riverman, K.L. Bindschadler, R. Holland, D.M. Anandakrishnan, S. |
author_sort |
Stanton, Timothy P. |
title |
Channelized Ice Melting in the Ocean Boundary Layer Beneath Pine Island Glacier, Antarctica |
title_short |
Channelized Ice Melting in the Ocean Boundary Layer Beneath Pine Island Glacier, Antarctica |
title_full |
Channelized Ice Melting in the Ocean Boundary Layer Beneath Pine Island Glacier, Antarctica |
title_fullStr |
Channelized Ice Melting in the Ocean Boundary Layer Beneath Pine Island Glacier, Antarctica |
title_full_unstemmed |
Channelized Ice Melting in the Ocean Boundary Layer Beneath Pine Island Glacier, Antarctica |
title_sort |
channelized ice melting in the ocean boundary layer beneath pine island glacier, antarctica |
publishDate |
2013 |
url |
https://hdl.handle.net/10945/48294 |
long_lat |
ENVELOPE(-101.000,-101.000,-75.000,-75.000) |
geographic |
Antarctic Pine Island Glacier The Antarctic West Antarctic Ice Sheet |
geographic_facet |
Antarctic Pine Island Glacier The Antarctic West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Antarctica British Antarctic Survey Ice Sheet Ice Shelf Ice Shelves Pine Island Pine Island Glacier |
genre_facet |
Antarc* Antarctic Antarctica British Antarctic Survey Ice Sheet Ice Shelf Ice Shelves Pine Island Pine Island Glacier |
op_relation |
Science 341 (September 2013), p. 1236-1239 https://hdl.handle.net/10945/48294 |
op_rights |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. |
_version_ |
1801383899017773056 |