Multi-decadal warming of Antarctic waters
Decadal trends in the properties of seawater adjacent to Antarctica are poorly known, and the mechanisms responsible for such changes are uncertain. Antarctic ice sheet mass loss is largely driven by ice shelf basal melt, which is influenced by ocean-ice interactions and has been correlated with Ant...
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ftcaltechauth:oai:authors.library.caltech.edu:p4h81-y7g98 2024-06-23T07:46:39+00:00 Multi-decadal warming of Antarctic waters Schmidtko, Sunke Heywood, Karen J. Thompson, Andrew F. Aoki, Shigeru 2014-12-05 https://doi.org/10.1126/science.1256117 unknown American Association for the Advancement of Science oai:authors.library.caltech.edu:p4h81-y7g98 eprintid:47465 https://doi.org/10.1126/science.1256117 resolverid:CaltechAUTHORS:20140724-122639145 info:eu-repo/semantics/openAccess Other Science, 346(6214), 1227-1231, (2014-12-05) info:eu-repo/semantics/article 2014 ftcaltechauth https://doi.org/10.1126/science.1256117 2024-06-12T05:37:11Z Decadal trends in the properties of seawater adjacent to Antarctica are poorly known, and the mechanisms responsible for such changes are uncertain. Antarctic ice sheet mass loss is largely driven by ice shelf basal melt, which is influenced by ocean-ice interactions and has been correlated with Antarctic Continental Shelf Bottom Water (ASBW) temperature. We document the spatial distribution of long-term large-scale trends in temperature, salinity, and core depth over the Antarctic continental shelf and slope. Warming at the seabed in the Bellingshausen and Amundsen seas is linked to increased heat content and to a shoaling of the mid-depth temperature maximum over the continental slope, allowing warmer, saltier water greater access to the shelf in recent years. Regions of ASBW warming are those exhibiting increased ice shelf melt. © 2014 American Association for the Advancement of Science. Received for publication 15 May 2014. Accepted for publication 27 October 2014. All data used in this manuscript are publicly available; data sources are detailed in the supplementary materials. We thank all officers, crews, and scientists involved in collecting and calibrating the data in the often harsh Southern Ocean environment, as well as everyone involved in making the data publicly available. We thank three anonymous reviewers for helpful discussions and feedback. Supported by the German Federal Ministry for Education and Research (BMBF) project MiKlip (S.S.); NERC Antarctic Funding Initiative research grant GENTOO NE/H01439X/1 (S.S. and K.J.H.); a Grant-in-Aid for Scientific Research of the Ministry of Education, Culture, Sports, Science and Technology, Japan, and a Daiwa Foundation Small Grant (S.A.); and NSF award OPP-1246460 (A.F.T.). Supplemental Material - Schmidtko.SM.pdf Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Southern Ocean Caltech Authors (California Institute of Technology) Antarctic Southern Ocean The Antarctic Science 346 6214 1227 1231 |
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Caltech Authors (California Institute of Technology) |
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description |
Decadal trends in the properties of seawater adjacent to Antarctica are poorly known, and the mechanisms responsible for such changes are uncertain. Antarctic ice sheet mass loss is largely driven by ice shelf basal melt, which is influenced by ocean-ice interactions and has been correlated with Antarctic Continental Shelf Bottom Water (ASBW) temperature. We document the spatial distribution of long-term large-scale trends in temperature, salinity, and core depth over the Antarctic continental shelf and slope. Warming at the seabed in the Bellingshausen and Amundsen seas is linked to increased heat content and to a shoaling of the mid-depth temperature maximum over the continental slope, allowing warmer, saltier water greater access to the shelf in recent years. Regions of ASBW warming are those exhibiting increased ice shelf melt. © 2014 American Association for the Advancement of Science. Received for publication 15 May 2014. Accepted for publication 27 October 2014. All data used in this manuscript are publicly available; data sources are detailed in the supplementary materials. We thank all officers, crews, and scientists involved in collecting and calibrating the data in the often harsh Southern Ocean environment, as well as everyone involved in making the data publicly available. We thank three anonymous reviewers for helpful discussions and feedback. Supported by the German Federal Ministry for Education and Research (BMBF) project MiKlip (S.S.); NERC Antarctic Funding Initiative research grant GENTOO NE/H01439X/1 (S.S. and K.J.H.); a Grant-in-Aid for Scientific Research of the Ministry of Education, Culture, Sports, Science and Technology, Japan, and a Daiwa Foundation Small Grant (S.A.); and NSF award OPP-1246460 (A.F.T.). Supplemental Material - Schmidtko.SM.pdf |
format |
Article in Journal/Newspaper |
author |
Schmidtko, Sunke Heywood, Karen J. Thompson, Andrew F. Aoki, Shigeru |
spellingShingle |
Schmidtko, Sunke Heywood, Karen J. Thompson, Andrew F. Aoki, Shigeru Multi-decadal warming of Antarctic waters |
author_facet |
Schmidtko, Sunke Heywood, Karen J. Thompson, Andrew F. Aoki, Shigeru |
author_sort |
Schmidtko, Sunke |
title |
Multi-decadal warming of Antarctic waters |
title_short |
Multi-decadal warming of Antarctic waters |
title_full |
Multi-decadal warming of Antarctic waters |
title_fullStr |
Multi-decadal warming of Antarctic waters |
title_full_unstemmed |
Multi-decadal warming of Antarctic waters |
title_sort |
multi-decadal warming of antarctic waters |
publisher |
American Association for the Advancement of Science |
publishDate |
2014 |
url |
https://doi.org/10.1126/science.1256117 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Southern Ocean |
op_source |
Science, 346(6214), 1227-1231, (2014-12-05) |
op_relation |
oai:authors.library.caltech.edu:p4h81-y7g98 eprintid:47465 https://doi.org/10.1126/science.1256117 resolverid:CaltechAUTHORS:20140724-122639145 |
op_rights |
info:eu-repo/semantics/openAccess Other |
op_doi |
https://doi.org/10.1126/science.1256117 |
container_title |
Science |
container_volume |
346 |
container_issue |
6214 |
container_start_page |
1227 |
op_container_end_page |
1231 |
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1802647281407623168 |