Deglacial carbon cycle changes observed in a compilation of 127 benthic δ13C time series (20–6 ka)
We present a compilation of 127 time series δ13C records from Cibicides wuellerstorfi spanning the last deglaciation (20–6 ka) which is well-suited for reconstructing large-scale carbon cycle changes, especially for comparison with isotope-enabled carbon cycle models. The age models for the δ13C rec...
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Copernicus Publications
2018
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fttriple:oai:gotriple.eu:oai:doaj.org/article:b96c3dbfeea14de2bf22cbc4f4b08bc4 2023-05-15T16:39:11+02:00 Deglacial carbon cycle changes observed in a compilation of 127 benthic δ13C time series (20–6 ka) C. D. Peterson L. E. Lisiecki 2018-08-01 https://doi.org/10.5194/cp-14-1229-2018 https://www.clim-past.net/14/1229/2018/cp-14-1229-2018.pdf https://doaj.org/article/b96c3dbfeea14de2bf22cbc4f4b08bc4 en eng Copernicus Publications doi:10.5194/cp-14-1229-2018 1814-9324 1814-9332 https://www.clim-past.net/14/1229/2018/cp-14-1229-2018.pdf https://doaj.org/article/b96c3dbfeea14de2bf22cbc4f4b08bc4 undefined Climate of the Past, Vol 14, Pp 1229-1252 (2018) envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/cp-14-1229-2018 2023-01-22T19:28:15Z We present a compilation of 127 time series δ13C records from Cibicides wuellerstorfi spanning the last deglaciation (20–6 ka) which is well-suited for reconstructing large-scale carbon cycle changes, especially for comparison with isotope-enabled carbon cycle models. The age models for the δ13C records are derived from regional planktic radiocarbon compilations (Stern and Lisiecki 2014). The δ13C records were stacked in nine different regions and then combined using volume-weighted averages to create intermediate, deep, and global δ13C stacks. These benthic δ13C stacks are used to reconstruct changes in the size of the terrestrial biosphere and deep ocean carbon storage. The timing of change in global mean δ13C is interpreted to indicate terrestrial biosphere expansion from 19–6 ka. The δ13C gradient between the intermediate and deep ocean, which we interpret as a proxy for deep ocean carbon storage, matches the pattern of atmospheric CO2 change observed in ice core records. The presence of signals associated with the terrestrial biosphere and atmospheric CO2 indicates that the compiled δ13C records have sufficient spatial coverage and time resolution to accurately reconstruct large-scale carbon cycle changes during the glacial termination. Article in Journal/Newspaper ice core Unknown Climate of the Past 14 8 1229 1252 |
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envir geo C. D. Peterson L. E. Lisiecki Deglacial carbon cycle changes observed in a compilation of 127 benthic δ13C time series (20–6 ka) |
topic_facet |
envir geo |
description |
We present a compilation of 127 time series δ13C records from Cibicides wuellerstorfi spanning the last deglaciation (20–6 ka) which is well-suited for reconstructing large-scale carbon cycle changes, especially for comparison with isotope-enabled carbon cycle models. The age models for the δ13C records are derived from regional planktic radiocarbon compilations (Stern and Lisiecki 2014). The δ13C records were stacked in nine different regions and then combined using volume-weighted averages to create intermediate, deep, and global δ13C stacks. These benthic δ13C stacks are used to reconstruct changes in the size of the terrestrial biosphere and deep ocean carbon storage. The timing of change in global mean δ13C is interpreted to indicate terrestrial biosphere expansion from 19–6 ka. The δ13C gradient between the intermediate and deep ocean, which we interpret as a proxy for deep ocean carbon storage, matches the pattern of atmospheric CO2 change observed in ice core records. The presence of signals associated with the terrestrial biosphere and atmospheric CO2 indicates that the compiled δ13C records have sufficient spatial coverage and time resolution to accurately reconstruct large-scale carbon cycle changes during the glacial termination. |
format |
Article in Journal/Newspaper |
author |
C. D. Peterson L. E. Lisiecki |
author_facet |
C. D. Peterson L. E. Lisiecki |
author_sort |
C. D. Peterson |
title |
Deglacial carbon cycle changes observed in a compilation of 127 benthic δ13C time series (20–6 ka) |
title_short |
Deglacial carbon cycle changes observed in a compilation of 127 benthic δ13C time series (20–6 ka) |
title_full |
Deglacial carbon cycle changes observed in a compilation of 127 benthic δ13C time series (20–6 ka) |
title_fullStr |
Deglacial carbon cycle changes observed in a compilation of 127 benthic δ13C time series (20–6 ka) |
title_full_unstemmed |
Deglacial carbon cycle changes observed in a compilation of 127 benthic δ13C time series (20–6 ka) |
title_sort |
deglacial carbon cycle changes observed in a compilation of 127 benthic δ13c time series (20–6 ka) |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-14-1229-2018 https://www.clim-past.net/14/1229/2018/cp-14-1229-2018.pdf https://doaj.org/article/b96c3dbfeea14de2bf22cbc4f4b08bc4 |
genre |
ice core |
genre_facet |
ice core |
op_source |
Climate of the Past, Vol 14, Pp 1229-1252 (2018) |
op_relation |
doi:10.5194/cp-14-1229-2018 1814-9324 1814-9332 https://www.clim-past.net/14/1229/2018/cp-14-1229-2018.pdf https://doaj.org/article/b96c3dbfeea14de2bf22cbc4f4b08bc4 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-14-1229-2018 |
container_title |
Climate of the Past |
container_volume |
14 |
container_issue |
8 |
container_start_page |
1229 |
op_container_end_page |
1252 |
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1766029509722636288 |