Iron in the NEEM ice core relative to Asian loess records over the last glacial-interglacial cycle
Mineral dust can indirectly affect the climate by supplying bioavailable iron (Fe) to the ocean. Here, we present the records of dissolved Fe (DFe) and total Fe (TDFe) in North Greenland Eemian Ice Drilling (NEEM) ice core over the past 110 kyr BP. The Fe records are significantly negatively correla...
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OXFORD UNIV PRESS
2021
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ftchinacascieeca:oai:ir.ieecas.cn:361006/17020 2023-06-11T04:12:11+02:00 Iron in the NEEM ice core relative to Asian loess records over the last glacial-interglacial cycle Xiao, Cunde Du, Zhiheng Handley, Mike J. Mayewski, Paul A. Cao, Junji Schuepbach, Simon Zhang, Tong Petit, Jean-Robert Li, Chuanjin Han, Yeongcheol Li, Yuefang Ren, Jiawen 2021-07-01 http://ir.ieecas.cn/handle/361006/17019 http://ir.ieecas.cn/handle/361006/17020 https://doi.org/10.1093/nsr/nwaa144 英语 eng OXFORD UNIV PRESS NATIONAL SCIENCE REVIEW http://ir.ieecas.cn/handle/361006/17019 http://ir.ieecas.cn/handle/361006/17020 doi:10.1093/nsr/nwaa144 Greenland NEEM ice core iron fertilization carbon dioxide Chinese loess glacial-interglacial cycle NORTH-ATLANTIC ATMOSPHERIC IRON CHINA LOESS GREENLAND DUST CLIMATE MONSOON SOLUBILITY LINK DISTRIBUTIONS Science & Technology - Other Topics Multidisciplinary Sciences 期刊论文 2021 ftchinacascieeca https://doi.org/10.1093/nsr/nwaa144 2023-05-08T13:25:26Z Mineral dust can indirectly affect the climate by supplying bioavailable iron (Fe) to the ocean. Here, we present the records of dissolved Fe (DFe) and total Fe (TDFe) in North Greenland Eemian Ice Drilling (NEEM) ice core over the past 110 kyr BP. The Fe records are significantly negatively correlated with the carbon-dioxide (CO2) concentrations during cold periods. The results suggest that the changes in Fe fluxes over the past 110 kyr BP in the NEEM ice core are consistent with those in Chinese loess records because the mineral-dust distribution is controlled by the East Asian deserts. Furthermore, the variations in the dust input on a global scale are most likely driven by changes in solar radiation during the last glacial-interglacial cycle in response to Earth's orbital cycles. In the last glacial-interglacial cycle, the DFe/TDFe ratios were higher during the warm periods (following the post-Industrial Revolution and during the Holocene and last interglacial period) than during the main cold period (i.e. the last glacial maximum (LGM)), indicating that the aeolian input of iron and the iron fertilization effect on the oceans have a non-linear relationship during different periods. Although the burning of biomass aerosols has released large amounts of DFe since the Industrial Revolution, no significant responses are observed in the DFe and TDFe variations during this period, indicating that severe anthropogenic contamination has no significant effect on the DFe (TDFe) release in the NEEM ice core. Report Greenland ice core North Atlantic North Greenland Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) Greenland National Science Review 8 7 |
institution |
Open Polar |
collection |
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascieeca |
language |
English |
topic |
Greenland NEEM ice core iron fertilization carbon dioxide Chinese loess glacial-interglacial cycle NORTH-ATLANTIC ATMOSPHERIC IRON CHINA LOESS GREENLAND DUST CLIMATE MONSOON SOLUBILITY LINK DISTRIBUTIONS Science & Technology - Other Topics Multidisciplinary Sciences |
spellingShingle |
Greenland NEEM ice core iron fertilization carbon dioxide Chinese loess glacial-interglacial cycle NORTH-ATLANTIC ATMOSPHERIC IRON CHINA LOESS GREENLAND DUST CLIMATE MONSOON SOLUBILITY LINK DISTRIBUTIONS Science & Technology - Other Topics Multidisciplinary Sciences Xiao, Cunde Du, Zhiheng Handley, Mike J. Mayewski, Paul A. Cao, Junji Schuepbach, Simon Zhang, Tong Petit, Jean-Robert Li, Chuanjin Han, Yeongcheol Li, Yuefang Ren, Jiawen Iron in the NEEM ice core relative to Asian loess records over the last glacial-interglacial cycle |
topic_facet |
Greenland NEEM ice core iron fertilization carbon dioxide Chinese loess glacial-interglacial cycle NORTH-ATLANTIC ATMOSPHERIC IRON CHINA LOESS GREENLAND DUST CLIMATE MONSOON SOLUBILITY LINK DISTRIBUTIONS Science & Technology - Other Topics Multidisciplinary Sciences |
description |
Mineral dust can indirectly affect the climate by supplying bioavailable iron (Fe) to the ocean. Here, we present the records of dissolved Fe (DFe) and total Fe (TDFe) in North Greenland Eemian Ice Drilling (NEEM) ice core over the past 110 kyr BP. The Fe records are significantly negatively correlated with the carbon-dioxide (CO2) concentrations during cold periods. The results suggest that the changes in Fe fluxes over the past 110 kyr BP in the NEEM ice core are consistent with those in Chinese loess records because the mineral-dust distribution is controlled by the East Asian deserts. Furthermore, the variations in the dust input on a global scale are most likely driven by changes in solar radiation during the last glacial-interglacial cycle in response to Earth's orbital cycles. In the last glacial-interglacial cycle, the DFe/TDFe ratios were higher during the warm periods (following the post-Industrial Revolution and during the Holocene and last interglacial period) than during the main cold period (i.e. the last glacial maximum (LGM)), indicating that the aeolian input of iron and the iron fertilization effect on the oceans have a non-linear relationship during different periods. Although the burning of biomass aerosols has released large amounts of DFe since the Industrial Revolution, no significant responses are observed in the DFe and TDFe variations during this period, indicating that severe anthropogenic contamination has no significant effect on the DFe (TDFe) release in the NEEM ice core. |
format |
Report |
author |
Xiao, Cunde Du, Zhiheng Handley, Mike J. Mayewski, Paul A. Cao, Junji Schuepbach, Simon Zhang, Tong Petit, Jean-Robert Li, Chuanjin Han, Yeongcheol Li, Yuefang Ren, Jiawen |
author_facet |
Xiao, Cunde Du, Zhiheng Handley, Mike J. Mayewski, Paul A. Cao, Junji Schuepbach, Simon Zhang, Tong Petit, Jean-Robert Li, Chuanjin Han, Yeongcheol Li, Yuefang Ren, Jiawen |
author_sort |
Xiao, Cunde |
title |
Iron in the NEEM ice core relative to Asian loess records over the last glacial-interglacial cycle |
title_short |
Iron in the NEEM ice core relative to Asian loess records over the last glacial-interglacial cycle |
title_full |
Iron in the NEEM ice core relative to Asian loess records over the last glacial-interglacial cycle |
title_fullStr |
Iron in the NEEM ice core relative to Asian loess records over the last glacial-interglacial cycle |
title_full_unstemmed |
Iron in the NEEM ice core relative to Asian loess records over the last glacial-interglacial cycle |
title_sort |
iron in the neem ice core relative to asian loess records over the last glacial-interglacial cycle |
publisher |
OXFORD UNIV PRESS |
publishDate |
2021 |
url |
http://ir.ieecas.cn/handle/361006/17019 http://ir.ieecas.cn/handle/361006/17020 https://doi.org/10.1093/nsr/nwaa144 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core North Atlantic North Greenland |
genre_facet |
Greenland ice core North Atlantic North Greenland |
op_relation |
NATIONAL SCIENCE REVIEW http://ir.ieecas.cn/handle/361006/17019 http://ir.ieecas.cn/handle/361006/17020 doi:10.1093/nsr/nwaa144 |
op_doi |
https://doi.org/10.1093/nsr/nwaa144 |
container_title |
National Science Review |
container_volume |
8 |
container_issue |
7 |
_version_ |
1768387858422300672 |