Exceptionally high biosphere productivity at the beginning of Marine Isotopic Stage 11

Research output: Contribution to journalJournal articlepeer-review

Standard

Exceptionally high biosphere productivity at the beginning of Marine Isotopic Stage 11. / Brandon, Margaux; Landais, Amaelle; Duchamp-Alphonse, Stephanie; Favre, Violaine; Schmitz, Lea; Abrial, Heloise; Prie, Frederic; Extier, Thomas; Blunier, Thomas.

In: Nature Communications, Vol. 11, No. 1, 2112, 30.04.2020.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Brandon, M, Landais, A, Duchamp-Alphonse, S, Favre, V, Schmitz, L, Abrial, H, Prie, F, Extier, T & Blunier, T 2020, 'Exceptionally high biosphere productivity at the beginning of Marine Isotopic Stage 11', Nature Communications, vol. 11, no. 1, 2112. https://doi.org/10.1038/s41467-020-15739-2

APA

Brandon, M., Landais, A., Duchamp-Alphonse, S., Favre, V., Schmitz, L., Abrial, H., Prie, F., Extier, T., & Blunier, T. (2020). Exceptionally high biosphere productivity at the beginning of Marine Isotopic Stage 11. Nature Communications, 11(1), [2112]. https://doi.org/10.1038/s41467-020-15739-2

Vancouver

Brandon M, Landais A, Duchamp-Alphonse S, Favre V, Schmitz L, Abrial H et al. Exceptionally high biosphere productivity at the beginning of Marine Isotopic Stage 11. Nature Communications. 2020 Apr 30;11(1). 2112. https://doi.org/10.1038/s41467-020-15739-2

Author

Brandon, Margaux ; Landais, Amaelle ; Duchamp-Alphonse, Stephanie ; Favre, Violaine ; Schmitz, Lea ; Abrial, Heloise ; Prie, Frederic ; Extier, Thomas ; Blunier, Thomas. / Exceptionally high biosphere productivity at the beginning of Marine Isotopic Stage 11. In: Nature Communications. 2020 ; Vol. 11, No. 1.

Bibtex

@article{c79f881362304ddba311183147c0986e,
title = "Exceptionally high biosphere productivity at the beginning of Marine Isotopic Stage 11",
abstract = "Significant changes in atmospheric CO2 over glacial-interglacial cycles have mainly been attributed to the Southern Ocean through physical and biological processes. However, little is known about the contribution of global biosphere productivity, associated with important CO2 fluxes. Here we present the first high resolution record of Delta O-17 of O-2 in the Antarctic EPICA Dome C ice core over Termination V and Marine Isotopic Stage (MIS) 11 and reconstruct the global oxygen biosphere productivity over the last 445 ka. Our data show that compared to the younger terminations, biosphere productivity at the end of Termination V is 10 to 30 % higher. Comparisons with local palaeo observations suggest that strong terrestrial productivity in a context of low eccentricity might explain this pattern. We propose that higher biosphere productivity could have maintained low atmospheric CO2 at the beginning of MIS 11, thus highlighting its control on the global climate during Termination V. Biosphere productivity is an important component of the CO2 cycle, but how it has varied over past glacial-interglacial cycles is not well known. Here, the authors present new data that shows that global biosphere productivity was 10 to 30% higher during Termination V compared to younger deglaciations.",
keywords = "BUBBLE CLOSE-OFF, ICE CORE, ANTARCTIC ICE, CHRONOLOGY AICC2012, ATMOSPHERIC OXYGEN, CARBON-DIOXIDE, CLIMATE-CHANGE, TRAPPED GASES, O-2, CO2",
author = "Margaux Brandon and Amaelle Landais and Stephanie Duchamp-Alphonse and Violaine Favre and Lea Schmitz and Heloise Abrial and Frederic Prie and Thomas Extier and Thomas Blunier",
year = "2020",
month = apr,
day = "30",
doi = "10.1038/s41467-020-15739-2",
language = "English",
volume = "11",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "nature publishing group",
number = "1",

}

RIS

TY - JOUR

T1 - Exceptionally high biosphere productivity at the beginning of Marine Isotopic Stage 11

AU - Brandon, Margaux

AU - Landais, Amaelle

AU - Duchamp-Alphonse, Stephanie

AU - Favre, Violaine

AU - Schmitz, Lea

AU - Abrial, Heloise

AU - Prie, Frederic

AU - Extier, Thomas

AU - Blunier, Thomas

PY - 2020/4/30

Y1 - 2020/4/30

N2 - Significant changes in atmospheric CO2 over glacial-interglacial cycles have mainly been attributed to the Southern Ocean through physical and biological processes. However, little is known about the contribution of global biosphere productivity, associated with important CO2 fluxes. Here we present the first high resolution record of Delta O-17 of O-2 in the Antarctic EPICA Dome C ice core over Termination V and Marine Isotopic Stage (MIS) 11 and reconstruct the global oxygen biosphere productivity over the last 445 ka. Our data show that compared to the younger terminations, biosphere productivity at the end of Termination V is 10 to 30 % higher. Comparisons with local palaeo observations suggest that strong terrestrial productivity in a context of low eccentricity might explain this pattern. We propose that higher biosphere productivity could have maintained low atmospheric CO2 at the beginning of MIS 11, thus highlighting its control on the global climate during Termination V. Biosphere productivity is an important component of the CO2 cycle, but how it has varied over past glacial-interglacial cycles is not well known. Here, the authors present new data that shows that global biosphere productivity was 10 to 30% higher during Termination V compared to younger deglaciations.

AB - Significant changes in atmospheric CO2 over glacial-interglacial cycles have mainly been attributed to the Southern Ocean through physical and biological processes. However, little is known about the contribution of global biosphere productivity, associated with important CO2 fluxes. Here we present the first high resolution record of Delta O-17 of O-2 in the Antarctic EPICA Dome C ice core over Termination V and Marine Isotopic Stage (MIS) 11 and reconstruct the global oxygen biosphere productivity over the last 445 ka. Our data show that compared to the younger terminations, biosphere productivity at the end of Termination V is 10 to 30 % higher. Comparisons with local palaeo observations suggest that strong terrestrial productivity in a context of low eccentricity might explain this pattern. We propose that higher biosphere productivity could have maintained low atmospheric CO2 at the beginning of MIS 11, thus highlighting its control on the global climate during Termination V. Biosphere productivity is an important component of the CO2 cycle, but how it has varied over past glacial-interglacial cycles is not well known. Here, the authors present new data that shows that global biosphere productivity was 10 to 30% higher during Termination V compared to younger deglaciations.

KW - BUBBLE CLOSE-OFF

KW - ICE CORE

KW - ANTARCTIC ICE

KW - CHRONOLOGY AICC2012

KW - ATMOSPHERIC OXYGEN

KW - CARBON-DIOXIDE

KW - CLIMATE-CHANGE

KW - TRAPPED GASES

KW - O-2

KW - CO2

U2 - 10.1038/s41467-020-15739-2

DO - 10.1038/s41467-020-15739-2

M3 - Journal article

C2 - 32355168

VL - 11

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

IS - 1

M1 - 2112

ER -

ID: 247542312