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Climate of the Past An interactive open-access journal of the European Geosciences Union
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CP | Articles | Volume 15, issue 3
Clim. Past, 15, 981–996, 2019
https://doi.org/10.5194/cp-15-981-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Ocean deoxygenation: drivers and consequences – past, present...

Clim. Past, 15, 981–996, 2019
https://doi.org/10.5194/cp-15-981-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 04 Jun 2019

Research article | 04 Jun 2019

Glacial CO2 decrease and deep-water deoxygenation by iron fertilization from glaciogenic dust

Akitomo Yamamoto et al.

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (05 May 2019) by Laurie Menviel
AR by Akitomo Yamamoto on behalf of the Authors (15 May 2019)  Author's response    Manuscript
ED: Publish subject to technical corrections (17 May 2019) by Laurie Menviel
AR by Akitomo Yamamoto on behalf of the Authors (21 May 2019)  Author's response    Manuscript
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Short summary
Proxy records of glacial oxygen change provide constraints on the contribution of the biological pump to glacial CO2 decrease. Here, we report our numerical simulation which successfully reproduces records of glacial oxygen changes and shows the significance of iron supply from glaciogenic dust. Our model simulations clarify that the enhanced efficiency of the biological pump is responsible for glacial CO2 decline of more than 30 ppm and approximately half of deep-ocean deoxygenation.
Proxy records of glacial oxygen change provide constraints on the contribution of the biological...
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