ENSO-like forcing on oceanic primary production during the Late Pleistocene
International audience Late Pleistocene changes in oceanic primary productivity along the equator in the Indian and Pacific oceans are revealed by quantitative changes in nanoplankton communities preserved in nine deep-sea cores. We show that variations in equatorial productivity are primarily cause...
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ftinsu:oai:HAL:hal-01460388v1 2023-12-17T10:19:07+01:00 ENSO-like forcing on oceanic primary production during the Late Pleistocene Beaufort, L. Garidel-Thoron, T, De Mix, Ac Pisias, Ng Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2001-09 https://hal.science/hal-01460388 https://doi.org/10.1126/science.293.5539.2440 en eng HAL CCSD American Association for the Advancement of Science (AAAS) info:eu-repo/semantics/altIdentifier/doi/10.1126/science.293.5539.2440 hal-01460388 https://hal.science/hal-01460388 doi:10.1126/science.293.5539.2440 ISSN: 0036-8075 EISSN: 1095-9203 Science https://hal.science/hal-01460388 Science, 2001, 293 (5539), pp.2440-2444. ⟨10.1126/science.293.5539.2440⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2001 ftinsu https://doi.org/10.1126/science.293.5539.2440 2023-11-22T17:49:24Z International audience Late Pleistocene changes in oceanic primary productivity along the equator in the Indian and Pacific oceans are revealed by quantitative changes in nanoplankton communities preserved in nine deep-sea cores. We show that variations in equatorial productivity are primarily caused by glacial-interglacial variability and by precession-controlled changes in the east-west thermodine slope of the Indo-Pacific. The precession-controlled variations in productivity are linked to processes similar to the Southern Oscillation phenomenon, and they precede changes in the oxygen isotopic ratio, which indicates that they are not the result of ice sheet fluctuations. The 30,000-year spectral peak in the tropical Indo-Pacific Ocean productivity records is also present in the Antarctica atmospheric CO2 record, suggesting an important rote for equatorial biological productivity in modifying atmospheric CO2. Article in Journal/Newspaper Antarc* Antarctica Ice Sheet Institut national des sciences de l'Univers: HAL-INSU Indian Pacific Science 293 5539 2440 2444 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Beaufort, L. Garidel-Thoron, T, De Mix, Ac Pisias, Ng ENSO-like forcing on oceanic primary production during the Late Pleistocene |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Late Pleistocene changes in oceanic primary productivity along the equator in the Indian and Pacific oceans are revealed by quantitative changes in nanoplankton communities preserved in nine deep-sea cores. We show that variations in equatorial productivity are primarily caused by glacial-interglacial variability and by precession-controlled changes in the east-west thermodine slope of the Indo-Pacific. The precession-controlled variations in productivity are linked to processes similar to the Southern Oscillation phenomenon, and they precede changes in the oxygen isotopic ratio, which indicates that they are not the result of ice sheet fluctuations. The 30,000-year spectral peak in the tropical Indo-Pacific Ocean productivity records is also present in the Antarctica atmospheric CO2 record, suggesting an important rote for equatorial biological productivity in modifying atmospheric CO2. |
author2 |
Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Beaufort, L. Garidel-Thoron, T, De Mix, Ac Pisias, Ng |
author_facet |
Beaufort, L. Garidel-Thoron, T, De Mix, Ac Pisias, Ng |
author_sort |
Beaufort, L. |
title |
ENSO-like forcing on oceanic primary production during the Late Pleistocene |
title_short |
ENSO-like forcing on oceanic primary production during the Late Pleistocene |
title_full |
ENSO-like forcing on oceanic primary production during the Late Pleistocene |
title_fullStr |
ENSO-like forcing on oceanic primary production during the Late Pleistocene |
title_full_unstemmed |
ENSO-like forcing on oceanic primary production during the Late Pleistocene |
title_sort |
enso-like forcing on oceanic primary production during the late pleistocene |
publisher |
HAL CCSD |
publishDate |
2001 |
url |
https://hal.science/hal-01460388 https://doi.org/10.1126/science.293.5539.2440 |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
Antarc* Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctica Ice Sheet |
op_source |
ISSN: 0036-8075 EISSN: 1095-9203 Science https://hal.science/hal-01460388 Science, 2001, 293 (5539), pp.2440-2444. ⟨10.1126/science.293.5539.2440⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1126/science.293.5539.2440 hal-01460388 https://hal.science/hal-01460388 doi:10.1126/science.293.5539.2440 |
op_doi |
https://doi.org/10.1126/science.293.5539.2440 |
container_title |
Science |
container_volume |
293 |
container_issue |
5539 |
container_start_page |
2440 |
op_container_end_page |
2444 |
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1785581252577853440 |