Rapid thinning of Pine Island Glacier in the early Holocene
Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet, has been undergoing rapid thinning and retreat for the past two decades. We demonstrate, using glacial-geological and geochronological data, that Pine Island Glacier (PIG) also experienced rapid thinning during the early Holocene,...
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ftuglasgow:oai:eprints.gla.ac.uk:92692 2023-05-15T13:36:54+02:00 Rapid thinning of Pine Island Glacier in the early Holocene Johnson, J.S. Bentley, M.J. Smith, J.A. Finkel, R.C. Rood, D.H. Gohl, K. Balco, G. Larter, R.D. Schaefer, J.M. 2014-02-28 http://eprints.gla.ac.uk/92692/ unknown Johnson, J.S., Bentley, M.J., Smith, J.A., Finkel, R.C., Rood, D.H. <http://eprints.gla.ac.uk/view/author/28408.html>, Gohl, K., Balco, G., Larter, R.D. and Schaefer, J.M. (2014) Rapid thinning of Pine Island Glacier in the early Holocene. Science <http://eprints.gla.ac.uk/view/journal_volume/Science.html>, 343(6174), pp. 999-1001. (doi:10.1126/science.1247385 <http://dx.doi.org/10.1126/science.1247385>) Articles PeerReviewed 2014 ftuglasgow https://doi.org/10.1126/science.1247385 2021-09-23T23:07:39Z Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet, has been undergoing rapid thinning and retreat for the past two decades. We demonstrate, using glacial-geological and geochronological data, that Pine Island Glacier (PIG) also experienced rapid thinning during the early Holocene, around 8000 years ago. Cosmogenic 10Be concentrations in glacially transported rocks show that this thinning was sustained for decades to centuries at an average rate of more than 100 centimeters per year, which is comparable with contemporary thinning rates. The most likely mechanism was a reduction in ice shelf buttressing. Our findings reveal that PIG has experienced rapid thinning at least once in the past and that, once set in motion, rapid ice sheet changes in this region can persist for centuries. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Ice Shelf Pine Island Glacier University of Glasgow: Enlighten - Publications Antarctic Pine Island Glacier ENVELOPE(-101.000,-101.000,-75.000,-75.000) West Antarctic Ice Sheet Science 343 6174 999 1001 |
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Open Polar |
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University of Glasgow: Enlighten - Publications |
op_collection_id |
ftuglasgow |
language |
unknown |
description |
Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet, has been undergoing rapid thinning and retreat for the past two decades. We demonstrate, using glacial-geological and geochronological data, that Pine Island Glacier (PIG) also experienced rapid thinning during the early Holocene, around 8000 years ago. Cosmogenic 10Be concentrations in glacially transported rocks show that this thinning was sustained for decades to centuries at an average rate of more than 100 centimeters per year, which is comparable with contemporary thinning rates. The most likely mechanism was a reduction in ice shelf buttressing. Our findings reveal that PIG has experienced rapid thinning at least once in the past and that, once set in motion, rapid ice sheet changes in this region can persist for centuries. |
format |
Article in Journal/Newspaper |
author |
Johnson, J.S. Bentley, M.J. Smith, J.A. Finkel, R.C. Rood, D.H. Gohl, K. Balco, G. Larter, R.D. Schaefer, J.M. |
spellingShingle |
Johnson, J.S. Bentley, M.J. Smith, J.A. Finkel, R.C. Rood, D.H. Gohl, K. Balco, G. Larter, R.D. Schaefer, J.M. Rapid thinning of Pine Island Glacier in the early Holocene |
author_facet |
Johnson, J.S. Bentley, M.J. Smith, J.A. Finkel, R.C. Rood, D.H. Gohl, K. Balco, G. Larter, R.D. Schaefer, J.M. |
author_sort |
Johnson, J.S. |
title |
Rapid thinning of Pine Island Glacier in the early Holocene |
title_short |
Rapid thinning of Pine Island Glacier in the early Holocene |
title_full |
Rapid thinning of Pine Island Glacier in the early Holocene |
title_fullStr |
Rapid thinning of Pine Island Glacier in the early Holocene |
title_full_unstemmed |
Rapid thinning of Pine Island Glacier in the early Holocene |
title_sort |
rapid thinning of pine island glacier in the early holocene |
publishDate |
2014 |
url |
http://eprints.gla.ac.uk/92692/ |
long_lat |
ENVELOPE(-101.000,-101.000,-75.000,-75.000) |
geographic |
Antarctic Pine Island Glacier West Antarctic Ice Sheet |
geographic_facet |
Antarctic Pine Island Glacier West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Ice Sheet Ice Shelf Pine Island Glacier |
genre_facet |
Antarc* Antarctic Ice Sheet Ice Shelf Pine Island Glacier |
op_relation |
Johnson, J.S., Bentley, M.J., Smith, J.A., Finkel, R.C., Rood, D.H. <http://eprints.gla.ac.uk/view/author/28408.html>, Gohl, K., Balco, G., Larter, R.D. and Schaefer, J.M. (2014) Rapid thinning of Pine Island Glacier in the early Holocene. Science <http://eprints.gla.ac.uk/view/journal_volume/Science.html>, 343(6174), pp. 999-1001. (doi:10.1126/science.1247385 <http://dx.doi.org/10.1126/science.1247385>) |
op_doi |
https://doi.org/10.1126/science.1247385 |
container_title |
Science |
container_volume |
343 |
container_issue |
6174 |
container_start_page |
999 |
op_container_end_page |
1001 |
_version_ |
1766085499320008704 |