Late Pliocene marine pCO2 reconstructions from the Subarctic Pacific Ocean. / Swann, George; Kendrick, Christopher; Dickson, Alexander; Worne, Savannah.

In: Paleoceanography, Vol. 33, No. 5, 05.2018, p. 457-469.

Research output: Contribution to journalArticlepeer-review

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Late Pliocene marine pCO2 reconstructions from the Subarctic Pacific Ocean. / Swann, George; Kendrick, Christopher; Dickson, Alexander; Worne, Savannah.

In: Paleoceanography, Vol. 33, No. 5, 05.2018, p. 457-469.

Research output: Contribution to journalArticlepeer-review

Harvard

Swann, G, Kendrick, C, Dickson, A & Worne, S 2018, 'Late Pliocene marine pCO2 reconstructions from the Subarctic Pacific Ocean', Paleoceanography, vol. 33, no. 5, pp. 457-469. https://doi.org/10.1029/2017PA003296

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Vancouver

Author

Swann, George ; Kendrick, Christopher ; Dickson, Alexander ; Worne, Savannah. / Late Pliocene marine pCO2 reconstructions from the Subarctic Pacific Ocean. In: Paleoceanography. 2018 ; Vol. 33, No. 5. pp. 457-469.

BibTeX

@article{f5c1f03a7cda4c60b1499ac39d15a80b,
title = "Late Pliocene marine pCO2 reconstructions from the Subarctic Pacific Ocean",
abstract = "The development of large ice-sheets across the Northern Hemisphere during the late Pliocene and the emergence of the glacial-interglacial cycles that punctuate the Quaternary mark a significant threshold in Earth's climate history. Although a number of different mechanisms have been proposed to initiate this cooling and the onset of major Northern Hemisphere glaciation, reductions in atmospheric concentrations of CO2 likely played a key role. The emergence of a stratified (halocline) water column in the subarctic north-west Pacific Ocean at 2.73 Ma has often been interpreted as an event which would have limited oceanic ventilation of CO2 to the atmosphere, thereby helping to cool the global climate system. Here, diatom carbon isotopes (δ13Cdiatom) are used to reconstruct changes in regional carbon dynamics through this interval. Results show that the development of a salinity stratification did not fundamental alter the net oceanic/atmospheric flux of CO2 in the subarctic north-west Pacific Ocean through the late Pliocene/early Quaternary. These results provide further insights into the long-term controls on global carbon cycling and the role of the subarctic Pacific Ocean in instigating global climatic changes.",
author = "George Swann and Christopher Kendrick and Alexander Dickson and Savannah Worne",
year = "2018",
month = may,
doi = "10.1029/2017PA003296",
language = "English",
volume = "33",
pages = "457--469",
journal = "Paleoceanography",
issn = "0883-8305",
publisher = "American Geophysical Union",
number = "5",

}

RIS

TY - JOUR

T1 - Late Pliocene marine pCO2 reconstructions from the Subarctic Pacific Ocean

AU - Swann, George

AU - Kendrick, Christopher

AU - Dickson, Alexander

AU - Worne, Savannah

PY - 2018/5

Y1 - 2018/5

N2 - The development of large ice-sheets across the Northern Hemisphere during the late Pliocene and the emergence of the glacial-interglacial cycles that punctuate the Quaternary mark a significant threshold in Earth's climate history. Although a number of different mechanisms have been proposed to initiate this cooling and the onset of major Northern Hemisphere glaciation, reductions in atmospheric concentrations of CO2 likely played a key role. The emergence of a stratified (halocline) water column in the subarctic north-west Pacific Ocean at 2.73 Ma has often been interpreted as an event which would have limited oceanic ventilation of CO2 to the atmosphere, thereby helping to cool the global climate system. Here, diatom carbon isotopes (δ13Cdiatom) are used to reconstruct changes in regional carbon dynamics through this interval. Results show that the development of a salinity stratification did not fundamental alter the net oceanic/atmospheric flux of CO2 in the subarctic north-west Pacific Ocean through the late Pliocene/early Quaternary. These results provide further insights into the long-term controls on global carbon cycling and the role of the subarctic Pacific Ocean in instigating global climatic changes.

AB - The development of large ice-sheets across the Northern Hemisphere during the late Pliocene and the emergence of the glacial-interglacial cycles that punctuate the Quaternary mark a significant threshold in Earth's climate history. Although a number of different mechanisms have been proposed to initiate this cooling and the onset of major Northern Hemisphere glaciation, reductions in atmospheric concentrations of CO2 likely played a key role. The emergence of a stratified (halocline) water column in the subarctic north-west Pacific Ocean at 2.73 Ma has often been interpreted as an event which would have limited oceanic ventilation of CO2 to the atmosphere, thereby helping to cool the global climate system. Here, diatom carbon isotopes (δ13Cdiatom) are used to reconstruct changes in regional carbon dynamics through this interval. Results show that the development of a salinity stratification did not fundamental alter the net oceanic/atmospheric flux of CO2 in the subarctic north-west Pacific Ocean through the late Pliocene/early Quaternary. These results provide further insights into the long-term controls on global carbon cycling and the role of the subarctic Pacific Ocean in instigating global climatic changes.

U2 - 10.1029/2017PA003296

DO - 10.1029/2017PA003296

M3 - Article

VL - 33

SP - 457

EP - 469

JO - Paleoceanography

JF - Paleoceanography

SN - 0883-8305

IS - 5

ER -