On the potential role of marine calcifiers in glacial-interglacial dynamics
[1] Ice core measurements have revealed a highly asymmetric cycle in Antarctic temperature and atmospheric CO2 over the last 800 kyr. Both CO2 and temperature decrease over 100 kyr going into a glacial period and then rise steeply over less than 10 kyr at the end of a glacial period. There does not...
Published in: | Global Biogeochemical Cycles |
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Language: | English |
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ftunivwagenin:oai:library.wur.nl:wurpubs/443886 2024-02-04T09:54:01+01:00 On the potential role of marine calcifiers in glacial-interglacial dynamics Omta, A.W. van Voorn, G.A.K. Rickaby, R.E.M. Follows, M.J. 2013 application/pdf https://research.wur.nl/en/publications/on-the-potential-role-of-marine-calcifiers-in-glacial-interglacia https://doi.org/10.1002/gbc.20060 en eng https://edepot.wur.nl/279992 https://research.wur.nl/en/publications/on-the-potential-role-of-marine-calcifiers-in-glacial-interglacia doi:10.1002/gbc.20060 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Global Biogeochemical Cycles 27 (2013) 3 ISSN: 0886-6236 atlantic-ocean atmospheric co2 benthic foraminiferal b/ca calcium-carbonate carbonate saturation state coral-reef deep-sea sediments food-web dynamics late-pleistocene southern-ocean info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2013 ftunivwagenin https://doi.org/10.1002/gbc.20060 2024-01-10T23:20:34Z [1] Ice core measurements have revealed a highly asymmetric cycle in Antarctic temperature and atmospheric CO2 over the last 800 kyr. Both CO2 and temperature decrease over 100 kyr going into a glacial period and then rise steeply over less than 10 kyr at the end of a glacial period. There does not yet exist wide agreement about the causes of this cycle or about the origin of its shape. Here we explore the possibility that an ecologically driven oscillator plays a role in the dynamics. A conceptual model describing the interaction between calcifying plankton and ocean alkalinity shows interesting features: (i) It generates an oscillation in atmospheric CO2 with the characteristic asymmetric shape observed in the ice core record, (ii) the system can transform a sinusoidal Milankovitch forcing into a sawtooth-shaped output, and (iii) there are spikes of enhanced calcifier productivity at the glacial-interglacial transitions, consistent with several sedimentary records. This suggests that ecological processes might play an active role in the observed glacial-interglacial cycles. Article in Journal/Newspaper Antarc* Antarctic ice core Southern Ocean Wageningen UR (University & Research Centre): Digital Library Antarctic Southern Ocean Global Biogeochemical Cycles 27 3 692 704 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
atlantic-ocean atmospheric co2 benthic foraminiferal b/ca calcium-carbonate carbonate saturation state coral-reef deep-sea sediments food-web dynamics late-pleistocene southern-ocean |
spellingShingle |
atlantic-ocean atmospheric co2 benthic foraminiferal b/ca calcium-carbonate carbonate saturation state coral-reef deep-sea sediments food-web dynamics late-pleistocene southern-ocean Omta, A.W. van Voorn, G.A.K. Rickaby, R.E.M. Follows, M.J. On the potential role of marine calcifiers in glacial-interglacial dynamics |
topic_facet |
atlantic-ocean atmospheric co2 benthic foraminiferal b/ca calcium-carbonate carbonate saturation state coral-reef deep-sea sediments food-web dynamics late-pleistocene southern-ocean |
description |
[1] Ice core measurements have revealed a highly asymmetric cycle in Antarctic temperature and atmospheric CO2 over the last 800 kyr. Both CO2 and temperature decrease over 100 kyr going into a glacial period and then rise steeply over less than 10 kyr at the end of a glacial period. There does not yet exist wide agreement about the causes of this cycle or about the origin of its shape. Here we explore the possibility that an ecologically driven oscillator plays a role in the dynamics. A conceptual model describing the interaction between calcifying plankton and ocean alkalinity shows interesting features: (i) It generates an oscillation in atmospheric CO2 with the characteristic asymmetric shape observed in the ice core record, (ii) the system can transform a sinusoidal Milankovitch forcing into a sawtooth-shaped output, and (iii) there are spikes of enhanced calcifier productivity at the glacial-interglacial transitions, consistent with several sedimentary records. This suggests that ecological processes might play an active role in the observed glacial-interglacial cycles. |
format |
Article in Journal/Newspaper |
author |
Omta, A.W. van Voorn, G.A.K. Rickaby, R.E.M. Follows, M.J. |
author_facet |
Omta, A.W. van Voorn, G.A.K. Rickaby, R.E.M. Follows, M.J. |
author_sort |
Omta, A.W. |
title |
On the potential role of marine calcifiers in glacial-interglacial dynamics |
title_short |
On the potential role of marine calcifiers in glacial-interglacial dynamics |
title_full |
On the potential role of marine calcifiers in glacial-interglacial dynamics |
title_fullStr |
On the potential role of marine calcifiers in glacial-interglacial dynamics |
title_full_unstemmed |
On the potential role of marine calcifiers in glacial-interglacial dynamics |
title_sort |
on the potential role of marine calcifiers in glacial-interglacial dynamics |
publishDate |
2013 |
url |
https://research.wur.nl/en/publications/on-the-potential-role-of-marine-calcifiers-in-glacial-interglacia https://doi.org/10.1002/gbc.20060 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic ice core Southern Ocean |
genre_facet |
Antarc* Antarctic ice core Southern Ocean |
op_source |
Global Biogeochemical Cycles 27 (2013) 3 ISSN: 0886-6236 |
op_relation |
https://edepot.wur.nl/279992 https://research.wur.nl/en/publications/on-the-potential-role-of-marine-calcifiers-in-glacial-interglacia doi:10.1002/gbc.20060 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1002/gbc.20060 |
container_title |
Global Biogeochemical Cycles |
container_volume |
27 |
container_issue |
3 |
container_start_page |
692 |
op_container_end_page |
704 |
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1789970003233079296 |