Articles | Volume 15, issue 3
https://doi.org/10.5194/cp-15-981-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-15-981-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
04 Jun 2019
Research article | Highlight paper |
| 04 Jun 2019
| 04 Jun 2019
Glacial CO2 decrease and deep-water deoxygenation by iron fertilization from glaciogenic dust
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Atmospheric and Ocean Research Institute, The University of Tokyo,
Kashiwa, Japan
Ayako Abe-Ouchi
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Atmospheric and Ocean Research Institute, The University of Tokyo,
Kashiwa, Japan
Rumi Ohgaito
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Akinori Ito
Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Akira Oka
Atmospheric and Ocean Research Institute, The University of Tokyo,
Kashiwa, Japan
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Cited
35 citations as recorded by crossref.
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- The Biological Pump During the Last Glacial Maximum E. Galbraith & L. Skinner https://doi.org/10.1146/annurev-marine-010419-010906
- Regional patterns and temporal evolution of ocean iron fertilization and CO2 drawdown during the last glacial termination F. Lambert et al. https://doi.org/10.1016/j.epsl.2020.116675
- 30 years of the iron hypothesis of ice ages H. Stoll https://doi.org/10.1038/d41586-020-00393-x
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- Impact of iron fertilisation on atmospheric CO2 during the last glaciation H. Saini et al. https://doi.org/10.5194/cp-19-1559-2023
- Development of the MIROC-ES2L Earth system model and the evaluation of biogeochemical processes and feedbacks T. Hajima et al. https://doi.org/10.5194/gmd-13-2197-2020
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- Glacial carbon cycle changes by Southern Ocean processes with sedimentary amplification H. Kobayashi et al. https://doi.org/10.1126/sciadv.abg7723
- Low source-inherited iron solubility limits fertilization potential of South American dust L. Simonella et al. https://doi.org/10.1016/j.gca.2022.06.032
- Iron in the NEEM ice core relative to Asian loess records over the last glacial–interglacial cycle C. Xiao et al. https://doi.org/10.1093/nsr/nwaa144
- Evaluating the biological pump efficiency of the Last Glacial Maximum ocean using δ13C A. Morée et al. https://doi.org/10.5194/cp-17-753-2021
- Responses of ocean biogeochemistry to atmospheric supply of lithogenic and pyrogenic iron-containing aerosols A. Ito et al. https://doi.org/10.1017/S0016756819001080
- A nitrogen isoscape of phytoplankton in the western North Pacific created with a marine nitrogen isotope model C. Yoshikawa et al. https://doi.org/10.3389/fmars.2024.1294608
- Abrupt Bølling‐Allerød Warming Simulated under Gradual Forcing of the Last Deglaciation T. Obase & A. Abe‐Ouchi https://doi.org/10.1029/2019GL084675
- Deep convection in the glacial Pacific can hinder oceanic carbon sequestration: An ocean-biogeochemical model study J. Du & J. Tian https://doi.org/10.1007/s11430-025-1815-6
- Modelling the impact of biogenic particle flux intensity and composition on sedimentary Pa/Th L. Missiaen et al. https://doi.org/10.1016/j.quascirev.2020.106394
- Proxies for paleo-oxygenation: A downcore comparison between benthic foraminiferal surface porosity and I/Ca W. Lu et al. https://doi.org/10.1016/j.palaeo.2021.110588
- Reconstructing the Oxygen Depth Profile in the Arabian Sea During the Last Glacial Period W. Lu et al. https://doi.org/10.1029/2023PA004632
- Ocean carbon pump decomposition and its application to CMIP5 earth system model simulations A. Oka https://doi.org/10.1186/s40645-020-00338-y
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- Distinct carbon sequestration in the glacial Pacific despite vigorous deep ocean circulation J. Du & J. Tian https://doi.org/10.1016/j.epsl.2025.119344
- Effect of Climatic Precession on Dansgaard‐Oeschger‐Like Oscillations Y. Kuniyoshi et al. https://doi.org/10.1029/2021GL095695
- Modelling the Past and Future Climate by Dr. Syukuro Manabe A. ABE-OUCHI https://doi.org/10.5363/tits.27.2_14
- A First Intercomparison of the Simulated LGM Carbon Results Within PMIP‐Carbon: Role of the Ocean Boundary Conditions F. Lhardy et al. https://doi.org/10.1029/2021PA004302
- The Flux and Provenance of Dust Delivered to the SW Pacific During the Last Glacial Maximum M. Trudgill et al. https://doi.org/10.1029/2020PA003869
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- Decadal vision in oceanography 2021: Deep ocean A. Oka et al. https://doi.org/10.5928/kaiyou.30.5_179
- Southern Ocean glacial conditions and their influence on deglacial events E. Sikes et al. https://doi.org/10.1038/s43017-023-00436-7
- Why do numerical models simulate contrasting primary productivity responses in the North Pacific during the Last Glacial Maximum? Z. Zhang et al. https://doi.org/10.3389/fmars.2026.1949533
- Two decades of Earth system modeling with an emphasis on Model for Interdisciplinary Research on Climate (MIROC) M. Kawamiya et al. https://doi.org/10.1186/s40645-020-00369-5
- Sequential changes in ocean circulation and biological export productivity during the last glacial–interglacial cycle: a model–data study C. O'Neill et al. https://doi.org/10.5194/cp-17-171-2021
35 citations as recorded by crossref.
- Quantifying Southern Hemisphere dust sources during the Last Glacial-Interglacial Transition using rare earth elements in the EPICA Dome C ice core S. Boxho et al. https://doi.org/10.5194/cp-22-1655-2026
- The Biological Pump During the Last Glacial Maximum E. Galbraith & L. Skinner https://doi.org/10.1146/annurev-marine-010419-010906
- Regional patterns and temporal evolution of ocean iron fertilization and CO2 drawdown during the last glacial termination F. Lambert et al. https://doi.org/10.1016/j.epsl.2020.116675
- 30 years of the iron hypothesis of ice ages H. Stoll https://doi.org/10.1038/d41586-020-00393-x
- Plateaus and jumps in the atmospheric radiocarbon record – potential origin and value as global age markers for glacial-to-deglacial paleoceanography, a synthesis M. Sarnthein et al. https://doi.org/10.5194/cp-16-2547-2020
- Comparing paleo-oxygenation proxies (benthic foraminiferal surface porosity, I/Ca, authigenic uranium) on modern sediments and the glacial Arabian Sea W. Lu et al. https://doi.org/10.1016/j.gca.2022.06.001
- Impact of iron fertilisation on atmospheric CO2 during the last glaciation H. Saini et al. https://doi.org/10.5194/cp-19-1559-2023
- Development of the MIROC-ES2L Earth system model and the evaluation of biogeochemical processes and feedbacks T. Hajima et al. https://doi.org/10.5194/gmd-13-2197-2020
- Bottom-water deoxygenation at the Peruvian margin during the last deglaciation recorded by benthic foraminifera Z. Erdem et al. https://doi.org/10.5194/bg-17-3165-2020
- Toward generalized Milankovitch theory (GMT) A. Ganopolski https://doi.org/10.5194/cp-20-151-2024
- Glacial carbon cycle changes by Southern Ocean processes with sedimentary amplification H. Kobayashi et al. https://doi.org/10.1126/sciadv.abg7723
- Low source-inherited iron solubility limits fertilization potential of South American dust L. Simonella et al. https://doi.org/10.1016/j.gca.2022.06.032
- Iron in the NEEM ice core relative to Asian loess records over the last glacial–interglacial cycle C. Xiao et al. https://doi.org/10.1093/nsr/nwaa144
- Evaluating the biological pump efficiency of the Last Glacial Maximum ocean using δ13C A. Morée et al. https://doi.org/10.5194/cp-17-753-2021
- Responses of ocean biogeochemistry to atmospheric supply of lithogenic and pyrogenic iron-containing aerosols A. Ito et al. https://doi.org/10.1017/S0016756819001080
- A nitrogen isoscape of phytoplankton in the western North Pacific created with a marine nitrogen isotope model C. Yoshikawa et al. https://doi.org/10.3389/fmars.2024.1294608
- Abrupt Bølling‐Allerød Warming Simulated under Gradual Forcing of the Last Deglaciation T. Obase & A. Abe‐Ouchi https://doi.org/10.1029/2019GL084675
- Deep convection in the glacial Pacific can hinder oceanic carbon sequestration: An ocean-biogeochemical model study J. Du & J. Tian https://doi.org/10.1007/s11430-025-1815-6
- Modelling the impact of biogenic particle flux intensity and composition on sedimentary Pa/Th L. Missiaen et al. https://doi.org/10.1016/j.quascirev.2020.106394
- Proxies for paleo-oxygenation: A downcore comparison between benthic foraminiferal surface porosity and I/Ca W. Lu et al. https://doi.org/10.1016/j.palaeo.2021.110588
- Reconstructing the Oxygen Depth Profile in the Arabian Sea During the Last Glacial Period W. Lu et al. https://doi.org/10.1029/2023PA004632
- Ocean carbon pump decomposition and its application to CMIP5 earth system model simulations A. Oka https://doi.org/10.1186/s40645-020-00338-y
- 冰期北太平洋深对流不利于海洋储碳：基于海洋-生物地球化学模式的数值模拟研究 金. 杜 & 军. 田 https://doi.org/10.1360/SSTe-2025-0275
- Distinct carbon sequestration in the glacial Pacific despite vigorous deep ocean circulation J. Du & J. Tian https://doi.org/10.1016/j.epsl.2025.119344
- Effect of Climatic Precession on Dansgaard‐Oeschger‐Like Oscillations Y. Kuniyoshi et al. https://doi.org/10.1029/2021GL095695
- Modelling the Past and Future Climate by Dr. Syukuro Manabe A. ABE-OUCHI https://doi.org/10.5363/tits.27.2_14
- A First Intercomparison of the Simulated LGM Carbon Results Within PMIP‐Carbon: Role of the Ocean Boundary Conditions F. Lhardy et al. https://doi.org/10.1029/2021PA004302
- The Flux and Provenance of Dust Delivered to the SW Pacific During the Last Glacial Maximum M. Trudgill et al. https://doi.org/10.1029/2020PA003869
- PMIP4 experiments using MIROC-ES2L Earth system model R. Ohgaito et al. https://doi.org/10.5194/gmd-14-1195-2021
- Abrupt climate changes in the last two deglaciations simulated with different Northern ice sheet discharge and insolation T. Obase et al. https://doi.org/10.1038/s41598-021-01651-2
- Decadal vision in oceanography 2021: Deep ocean A. Oka et al. https://doi.org/10.5928/kaiyou.30.5_179
- Southern Ocean glacial conditions and their influence on deglacial events E. Sikes et al. https://doi.org/10.1038/s43017-023-00436-7
- Why do numerical models simulate contrasting primary productivity responses in the North Pacific during the Last Glacial Maximum? Z. Zhang et al. https://doi.org/10.3389/fmars.2026.1949533
- Two decades of Earth system modeling with an emphasis on Model for Interdisciplinary Research on Climate (MIROC) M. Kawamiya et al. https://doi.org/10.1186/s40645-020-00369-5
- Sequential changes in ocean circulation and biological export productivity during the last glacial–interglacial cycle: a model–data study C. O'Neill et al. https://doi.org/10.5194/cp-17-171-2021
Saved (final revised paper)
Latest update: 14 Nov 2026
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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