Assessing millennial-scale variability during the Holocene: A perspective from the western tropical Pacific
We investigate the relationship between tropical Pacific and Southern Ocean variability during the Holocene using the stable oxygen isotope and magnesium/calcium records of cooccurring planktonic and benthic foraminifera from a marine sediment core collected in the western equatorial Pacific. The pl...
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Language: | English |
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Amer Geophysical Union
2014
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Online Access: | https://archimer.ifremer.fr/doc/00290/40166/39058.pdf https://archimer.ifremer.fr/doc/00290/40166/39059.rtf https://archimer.ifremer.fr/doc/00290/40166/39060.pdf https://archimer.ifremer.fr/doc/00290/40166/39061.eps https://archimer.ifremer.fr/doc/00290/40166/39062.eps https://archimer.ifremer.fr/doc/00290/40166/39063.eps https://archimer.ifremer.fr/doc/00290/40166/39064.eps https://archimer.ifremer.fr/doc/00290/40166/39065.eps https://archimer.ifremer.fr/doc/00290/40166/39066.xls https://doi.org/10.1002/2013PA002534 https://archimer.ifremer.fr/doc/00290/40166/ |
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ftarchimer:oai:archimer.ifremer.fr:40166 2023-05-15T17:34:30+02:00 Assessing millennial-scale variability during the Holocene: A perspective from the western tropical Pacific Khider, D. Jackson, C. S. Stott, L. D. 2014-03-01 application/pdf https://archimer.ifremer.fr/doc/00290/40166/39058.pdf https://archimer.ifremer.fr/doc/00290/40166/39059.rtf https://archimer.ifremer.fr/doc/00290/40166/39060.pdf https://archimer.ifremer.fr/doc/00290/40166/39061.eps https://archimer.ifremer.fr/doc/00290/40166/39062.eps https://archimer.ifremer.fr/doc/00290/40166/39063.eps https://archimer.ifremer.fr/doc/00290/40166/39064.eps https://archimer.ifremer.fr/doc/00290/40166/39065.eps https://archimer.ifremer.fr/doc/00290/40166/39066.xls https://doi.org/10.1002/2013PA002534 https://archimer.ifremer.fr/doc/00290/40166/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00290/40166/39058.pdf https://archimer.ifremer.fr/doc/00290/40166/39059.rtf https://archimer.ifremer.fr/doc/00290/40166/39060.pdf https://archimer.ifremer.fr/doc/00290/40166/39061.eps https://archimer.ifremer.fr/doc/00290/40166/39062.eps https://archimer.ifremer.fr/doc/00290/40166/39063.eps https://archimer.ifremer.fr/doc/00290/40166/39064.eps https://archimer.ifremer.fr/doc/00290/40166/39065.eps https://archimer.ifremer.fr/doc/00290/40166/39066.xls doi:10.1002/2013PA002534 https://archimer.ifremer.fr/doc/00290/40166/ 2014. American Geophysical Union. All Rights Reserved. info:eu-repo/semantics/openAccess restricted use Paleoceanography (0883-8305) (Amer Geophysical Union), 2014-03-01 , Vol. 29 , N. 3 , P. 143-159 Holocene millennial-scale variability Mg Ca thermometry Uncertainty Quantification Solar Forcing text Publication info:eu-repo/semantics/article 2014 ftarchimer https://doi.org/10.1002/2013PA002534 2021-09-23T20:26:50Z We investigate the relationship between tropical Pacific and Southern Ocean variability during the Holocene using the stable oxygen isotope and magnesium/calcium records of cooccurring planktonic and benthic foraminifera from a marine sediment core collected in the western equatorial Pacific. The planktonic record exhibits millennial-scale sea surface temperature (SST) oscillations over the Holocene of ~0.5°C while the benthic δ18Oc document ~0.10‰ millennial-scale changes of Upper Circumpolar Deep Water (UCDW), a water mass which outcrops in the Southern Ocean. Solar forcing as an explanation for millennial-scale SST variability requires (1) a large climate sensitivity and (2) a long 400 year delayed response, suggesting that if solar forcing is the cause of the variability, it would need to be considerably amplified by processes within the climate system at least at the core location. We also explore the possibility that SST variability arose from volcanic forcing using a simple red noise model. Our best estimates of volcanic forcing falls short of reproducing the amplitude of observed SST variations although it produces power at low-frequency similar to that observed in the MD81 record. Although we cannot totally discount the volcanic and solar forcing hypotheses, we are left to consider that the most plausible source for Holocene millennial-scale variability lies within the climate system itself. In particular, UCDW variability coincided with deep North Atlantic changes, indicating a role for the deep ocean in Holocene millennial-scale variability. Article in Journal/Newspaper North Atlantic Southern Ocean Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Southern Ocean Pacific Paleoceanography 29 3 143 159 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Holocene millennial-scale variability Mg Ca thermometry Uncertainty Quantification Solar Forcing |
spellingShingle |
Holocene millennial-scale variability Mg Ca thermometry Uncertainty Quantification Solar Forcing Khider, D. Jackson, C. S. Stott, L. D. Assessing millennial-scale variability during the Holocene: A perspective from the western tropical Pacific |
topic_facet |
Holocene millennial-scale variability Mg Ca thermometry Uncertainty Quantification Solar Forcing |
description |
We investigate the relationship between tropical Pacific and Southern Ocean variability during the Holocene using the stable oxygen isotope and magnesium/calcium records of cooccurring planktonic and benthic foraminifera from a marine sediment core collected in the western equatorial Pacific. The planktonic record exhibits millennial-scale sea surface temperature (SST) oscillations over the Holocene of ~0.5°C while the benthic δ18Oc document ~0.10‰ millennial-scale changes of Upper Circumpolar Deep Water (UCDW), a water mass which outcrops in the Southern Ocean. Solar forcing as an explanation for millennial-scale SST variability requires (1) a large climate sensitivity and (2) a long 400 year delayed response, suggesting that if solar forcing is the cause of the variability, it would need to be considerably amplified by processes within the climate system at least at the core location. We also explore the possibility that SST variability arose from volcanic forcing using a simple red noise model. Our best estimates of volcanic forcing falls short of reproducing the amplitude of observed SST variations although it produces power at low-frequency similar to that observed in the MD81 record. Although we cannot totally discount the volcanic and solar forcing hypotheses, we are left to consider that the most plausible source for Holocene millennial-scale variability lies within the climate system itself. In particular, UCDW variability coincided with deep North Atlantic changes, indicating a role for the deep ocean in Holocene millennial-scale variability. |
format |
Article in Journal/Newspaper |
author |
Khider, D. Jackson, C. S. Stott, L. D. |
author_facet |
Khider, D. Jackson, C. S. Stott, L. D. |
author_sort |
Khider, D. |
title |
Assessing millennial-scale variability during the Holocene: A perspective from the western tropical Pacific |
title_short |
Assessing millennial-scale variability during the Holocene: A perspective from the western tropical Pacific |
title_full |
Assessing millennial-scale variability during the Holocene: A perspective from the western tropical Pacific |
title_fullStr |
Assessing millennial-scale variability during the Holocene: A perspective from the western tropical Pacific |
title_full_unstemmed |
Assessing millennial-scale variability during the Holocene: A perspective from the western tropical Pacific |
title_sort |
assessing millennial-scale variability during the holocene: a perspective from the western tropical pacific |
publisher |
Amer Geophysical Union |
publishDate |
2014 |
url |
https://archimer.ifremer.fr/doc/00290/40166/39058.pdf https://archimer.ifremer.fr/doc/00290/40166/39059.rtf https://archimer.ifremer.fr/doc/00290/40166/39060.pdf https://archimer.ifremer.fr/doc/00290/40166/39061.eps https://archimer.ifremer.fr/doc/00290/40166/39062.eps https://archimer.ifremer.fr/doc/00290/40166/39063.eps https://archimer.ifremer.fr/doc/00290/40166/39064.eps https://archimer.ifremer.fr/doc/00290/40166/39065.eps https://archimer.ifremer.fr/doc/00290/40166/39066.xls https://doi.org/10.1002/2013PA002534 https://archimer.ifremer.fr/doc/00290/40166/ |
geographic |
Southern Ocean Pacific |
geographic_facet |
Southern Ocean Pacific |
genre |
North Atlantic Southern Ocean |
genre_facet |
North Atlantic Southern Ocean |
op_source |
Paleoceanography (0883-8305) (Amer Geophysical Union), 2014-03-01 , Vol. 29 , N. 3 , P. 143-159 |
op_relation |
https://archimer.ifremer.fr/doc/00290/40166/39058.pdf https://archimer.ifremer.fr/doc/00290/40166/39059.rtf https://archimer.ifremer.fr/doc/00290/40166/39060.pdf https://archimer.ifremer.fr/doc/00290/40166/39061.eps https://archimer.ifremer.fr/doc/00290/40166/39062.eps https://archimer.ifremer.fr/doc/00290/40166/39063.eps https://archimer.ifremer.fr/doc/00290/40166/39064.eps https://archimer.ifremer.fr/doc/00290/40166/39065.eps https://archimer.ifremer.fr/doc/00290/40166/39066.xls doi:10.1002/2013PA002534 https://archimer.ifremer.fr/doc/00290/40166/ |
op_rights |
2014. American Geophysical Union. All Rights Reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1002/2013PA002534 |
container_title |
Paleoceanography |
container_volume |
29 |
container_issue |
3 |
container_start_page |
143 |
op_container_end_page |
159 |
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