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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AMER ASSOC ADVANCEMENT SCIENCE
2014
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Online Access: | https://epic.awi.de/id/eprint/34813/ https://epic.awi.de/id/eprint/34813/1/Johnson-etal_rapid-thinning-PineIslandGlacier-early-Holocene_Science_2014.pdf https://hdl.handle.net/10013/epic.43110 https://hdl.handle.net/10013/epic.43110.d001 |
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ftawi:oai:epic.awi.de:34813 2024-09-15T17:41:08+00:00 Rapid thinning of Pine Island Glacier in the early Holocene Johnson, Joanne S. Bentley, Michael J. Smith, James A. Finkel, R. C. Rood, D. H. Gohl, Karsten Balco, G. Larter, Robert D. Schaefer, J. M. 2014-02-28 application/pdf https://epic.awi.de/id/eprint/34813/ https://epic.awi.de/id/eprint/34813/1/Johnson-etal_rapid-thinning-PineIslandGlacier-early-Holocene_Science_2014.pdf https://hdl.handle.net/10013/epic.43110 https://hdl.handle.net/10013/epic.43110.d001 unknown AMER ASSOC ADVANCEMENT SCIENCE https://epic.awi.de/id/eprint/34813/1/Johnson-etal_rapid-thinning-PineIslandGlacier-early-Holocene_Science_2014.pdf https://hdl.handle.net/10013/epic.43110.d001 Johnson, J. S. , Bentley, M. J. , Smith, J. A. , Finkel, R. C. , Rood, D. H. , Gohl, K. orcid:0000-0002-9558-2116 , Balco, G. , Larter, R. D. and Schaefer, J. M. (2014) Rapid thinning of Pine Island Glacier in the early Holocene , Science, 343 (6174), pp. 999-1001 . doi:10.1126/science.1247385 <https://doi.org/10.1126/science.1247385> , hdl:10013/epic.43110 EPIC3Science, AMER ASSOC ADVANCEMENT SCIENCE, 343(6174), pp. 999-1001, ISSN: 0036-8075 Article isiRev 2014 ftawi https://doi.org/10.1126/science.1247385 2024-06-24T04:08:32Z 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Science 343 6174 999 1001 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
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, Joanne S. Bentley, Michael J. Smith, James A. Finkel, R. C. Rood, D. H. Gohl, Karsten Balco, G. Larter, Robert D. Schaefer, J. M. |
spellingShingle |
Johnson, Joanne S. Bentley, Michael J. Smith, James A. Finkel, R. C. Rood, D. H. Gohl, Karsten Balco, G. Larter, Robert D. Schaefer, J. M. Rapid thinning of Pine Island Glacier in the early Holocene |
author_facet |
Johnson, Joanne S. Bentley, Michael J. Smith, James A. Finkel, R. C. Rood, D. H. Gohl, Karsten Balco, G. Larter, Robert D. Schaefer, J. M. |
author_sort |
Johnson, Joanne 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 |
publisher |
AMER ASSOC ADVANCEMENT SCIENCE |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/34813/ https://epic.awi.de/id/eprint/34813/1/Johnson-etal_rapid-thinning-PineIslandGlacier-early-Holocene_Science_2014.pdf https://hdl.handle.net/10013/epic.43110 https://hdl.handle.net/10013/epic.43110.d001 |
genre |
Antarc* Antarctic Ice Sheet Ice Shelf Pine Island Glacier |
genre_facet |
Antarc* Antarctic Ice Sheet Ice Shelf Pine Island Glacier |
op_source |
EPIC3Science, AMER ASSOC ADVANCEMENT SCIENCE, 343(6174), pp. 999-1001, ISSN: 0036-8075 |
op_relation |
https://epic.awi.de/id/eprint/34813/1/Johnson-etal_rapid-thinning-PineIslandGlacier-early-Holocene_Science_2014.pdf https://hdl.handle.net/10013/epic.43110.d001 Johnson, J. S. , Bentley, M. J. , Smith, J. A. , Finkel, R. C. , Rood, D. H. , Gohl, K. orcid:0000-0002-9558-2116 , Balco, G. , Larter, R. D. and Schaefer, J. M. (2014) Rapid thinning of Pine Island Glacier in the early Holocene , Science, 343 (6174), pp. 999-1001 . doi:10.1126/science.1247385 <https://doi.org/10.1126/science.1247385> , hdl:10013/epic.43110 |
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 |
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1810487242820419584 |