Millennial variations in atmospheric CO2 during the early Holocene (11.7-7.4 ka)
We present a new high-resolution record of atmospheric CO2 from the Siple Dome ice core, Antarctica, over the early Holocene (11.7-7.4 ka) that quantifies natural CO2 variability on millennial timescales under interglacial climate conditions. Atmospheric CO2 decreased by ∼10 ppm between 11.3 and 7.3...
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ftpubman:oai:pure.mpg.de:item_3458281 2023-08-27T04:05:58+02:00 Millennial variations in atmospheric CO2 during the early Holocene (11.7-7.4 ka) Shin, J. Ahn, J. Chowdhry Beeman, J. Lee, H. Seo, J. Brook, E. 2022-09-06 application/pdf application/zip http://hdl.handle.net/21.11116/0000-000B-5CD8-B http://hdl.handle.net/21.11116/0000-000B-5CDE-5 http://hdl.handle.net/21.11116/0000-000B-5CDF-4 eng eng info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-18-2063-2022 http://hdl.handle.net/21.11116/0000-000B-5CD8-B http://hdl.handle.net/21.11116/0000-000B-5CDE-5 http://hdl.handle.net/21.11116/0000-000B-5CDF-4 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Climate of the Past info:eu-repo/semantics/article 2022 ftpubman https://doi.org/10.5194/cp-18-2063-2022 2023-08-02T01:45:08Z We present a new high-resolution record of atmospheric CO2 from the Siple Dome ice core, Antarctica, over the early Holocene (11.7-7.4 ka) that quantifies natural CO2 variability on millennial timescales under interglacial climate conditions. Atmospheric CO2 decreased by ∼10 ppm between 11.3 and 7.3 ka. The decrease was punctuated by local minima at 11.1, 10.1, 9.1, and 8.3 ka with an amplitude of 2-4 ppm. Although the explanations of carbon cycle mechanisms remain uncertain due to insufficient paleoclimate records and model simulations, these variations correlate with proxies for solar forcing and local climate in the southeast Atlantic polar front, eastern equatorial Pacific, and North Atlantic. Additional CO2 measurements using better-quality ice cores and carbon cycle models are needed to confirm the observation. © 2022 Jinhwa Shin et al. Article in Journal/Newspaper Antarc* Antarctica ice core North Atlantic Max Planck Society: MPG.PuRe Pacific Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) Siple Dome ENVELOPE(-148.833,-148.833,-81.667,-81.667) Climate of the Past 18 9 2063 2075 |
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Open Polar |
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Max Planck Society: MPG.PuRe |
op_collection_id |
ftpubman |
language |
English |
description |
We present a new high-resolution record of atmospheric CO2 from the Siple Dome ice core, Antarctica, over the early Holocene (11.7-7.4 ka) that quantifies natural CO2 variability on millennial timescales under interglacial climate conditions. Atmospheric CO2 decreased by ∼10 ppm between 11.3 and 7.3 ka. The decrease was punctuated by local minima at 11.1, 10.1, 9.1, and 8.3 ka with an amplitude of 2-4 ppm. Although the explanations of carbon cycle mechanisms remain uncertain due to insufficient paleoclimate records and model simulations, these variations correlate with proxies for solar forcing and local climate in the southeast Atlantic polar front, eastern equatorial Pacific, and North Atlantic. Additional CO2 measurements using better-quality ice cores and carbon cycle models are needed to confirm the observation. © 2022 Jinhwa Shin et al. |
format |
Article in Journal/Newspaper |
author |
Shin, J. Ahn, J. Chowdhry Beeman, J. Lee, H. Seo, J. Brook, E. |
spellingShingle |
Shin, J. Ahn, J. Chowdhry Beeman, J. Lee, H. Seo, J. Brook, E. Millennial variations in atmospheric CO2 during the early Holocene (11.7-7.4 ka) |
author_facet |
Shin, J. Ahn, J. Chowdhry Beeman, J. Lee, H. Seo, J. Brook, E. |
author_sort |
Shin, J. |
title |
Millennial variations in atmospheric CO2 during the early Holocene (11.7-7.4 ka) |
title_short |
Millennial variations in atmospheric CO2 during the early Holocene (11.7-7.4 ka) |
title_full |
Millennial variations in atmospheric CO2 during the early Holocene (11.7-7.4 ka) |
title_fullStr |
Millennial variations in atmospheric CO2 during the early Holocene (11.7-7.4 ka) |
title_full_unstemmed |
Millennial variations in atmospheric CO2 during the early Holocene (11.7-7.4 ka) |
title_sort |
millennial variations in atmospheric co2 during the early holocene (11.7-7.4 ka) |
publishDate |
2022 |
url |
http://hdl.handle.net/21.11116/0000-000B-5CD8-B http://hdl.handle.net/21.11116/0000-000B-5CDE-5 http://hdl.handle.net/21.11116/0000-000B-5CDF-4 |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) ENVELOPE(-148.833,-148.833,-81.667,-81.667) |
geographic |
Pacific Siple Siple Dome |
geographic_facet |
Pacific Siple Siple Dome |
genre |
Antarc* Antarctica ice core North Atlantic |
genre_facet |
Antarc* Antarctica ice core North Atlantic |
op_source |
Climate of the Past |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-18-2063-2022 http://hdl.handle.net/21.11116/0000-000B-5CD8-B http://hdl.handle.net/21.11116/0000-000B-5CDE-5 http://hdl.handle.net/21.11116/0000-000B-5CDF-4 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.5194/cp-18-2063-2022 |
container_title |
Climate of the Past |
container_volume |
18 |
container_issue |
9 |
container_start_page |
2063 |
op_container_end_page |
2075 |
_version_ |
1775346693090312192 |