Changing sources and burial of organic carbon in the Chukchi Sea sediments with retreating sea ice over recent centuries
International audience Decreasing sea ice extent caused by climate change is affecting the carbon cycle of the Arctic Ocean. In this study, surface sediments across the western Arctic Ocean are investigated to characterize sources of sedimentary organic carbon (OC). Bulk organic parameters (total or...
Published in: | Climate of the Past |
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Main Authors: | , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2023
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Subjects: | |
Online Access: | https://insu.hal.science/insu-04188266 https://insu.hal.science/insu-04188266/document https://insu.hal.science/insu-04188266/file/cp-19-1305-2023.pdf https://doi.org/10.5194/cp-19-1305-2023 |
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Muséum National d'Histoire Naturelle (MNHM): HAL |
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English |
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[SDU]Sciences of the Universe [physics] |
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[SDU]Sciences of the Universe [physics] Su, Liang Ren, Jian Sicre, Marie-Alexandrine Bai, Youcheng Zhao, Ruoshi Han, Xibing Li, Zhongqiao Jin, Haiyan Astakhov, Anatolii S. Shi, Xuefa Chen, Jianfang Changing sources and burial of organic carbon in the Chukchi Sea sediments with retreating sea ice over recent centuries |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Decreasing sea ice extent caused by climate change is affecting the carbon cycle of the Arctic Ocean. In this study, surface sediments across the western Arctic Ocean are investigated to characterize sources of sedimentary organic carbon (OC). Bulk organic parameters (total organic carbon, total nitrogen, δ 13 C org , and δ 15 N) and molecular organic biomarkers (e.g., sterols and highly branched isoprenoids - HBIs) are combined to distinguish between sympagic, pelagic, and terrestrial OC sources. Their downcore profiles generated at the Chukchi Sea R1 core site (74 ∘ N) are then used to evaluate changes in the relative contribution of these components of sedimentary OC over the last 200 years with decreasing sea ice. Our data evidence that, from the 1820s to the 1930s, prevailing high sea ice cover inhibited in situ primary production, resulting in prominent land-derived material in sediments. Then, from the 1930s to the 1980s, primary production started increasing with the gradual decline of summer sea ice. The ratio of sympagic and pelagic OC began to rise to account for the larger portion of sedimentary OC. Since the 1980s, accelerated sea ice loss led to enhanced primary production, stabilizing over the last decades due to freshwater-induced surface ocean stratification in summer. |
author2 |
Ocean College Zhejiang University Key Laboratory of Marine Ecosystem Dynamics Variabilité de l'Océan et de la Glace de mer (VOG) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Second Institute of Oceanography State Oceanic Administration (SOA) State Key Laboratory of Satellite Ocean Environment Dynamics (SOED) V.I. Il'ichev Pacific Oceanological Institute Il'ichev Pacific Oceanological Institute First Institute of Oceanography Qingdao (FIO) Ministry of Natural Resources of China |
format |
Article in Journal/Newspaper |
author |
Su, Liang Ren, Jian Sicre, Marie-Alexandrine Bai, Youcheng Zhao, Ruoshi Han, Xibing Li, Zhongqiao Jin, Haiyan Astakhov, Anatolii S. Shi, Xuefa Chen, Jianfang |
author_facet |
Su, Liang Ren, Jian Sicre, Marie-Alexandrine Bai, Youcheng Zhao, Ruoshi Han, Xibing Li, Zhongqiao Jin, Haiyan Astakhov, Anatolii S. Shi, Xuefa Chen, Jianfang |
author_sort |
Su, Liang |
title |
Changing sources and burial of organic carbon in the Chukchi Sea sediments with retreating sea ice over recent centuries |
title_short |
Changing sources and burial of organic carbon in the Chukchi Sea sediments with retreating sea ice over recent centuries |
title_full |
Changing sources and burial of organic carbon in the Chukchi Sea sediments with retreating sea ice over recent centuries |
title_fullStr |
Changing sources and burial of organic carbon in the Chukchi Sea sediments with retreating sea ice over recent centuries |
title_full_unstemmed |
Changing sources and burial of organic carbon in the Chukchi Sea sediments with retreating sea ice over recent centuries |
title_sort |
changing sources and burial of organic carbon in the chukchi sea sediments with retreating sea ice over recent centuries |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://insu.hal.science/insu-04188266 https://insu.hal.science/insu-04188266/document https://insu.hal.science/insu-04188266/file/cp-19-1305-2023.pdf https://doi.org/10.5194/cp-19-1305-2023 |
genre |
Arctic Arctic Ocean Chukchi Chukchi Sea Climate change Sea ice |
genre_facet |
Arctic Arctic Ocean Chukchi Chukchi Sea Climate change Sea ice |
op_source |
ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://insu.hal.science/insu-04188266 Climate of the Past, 2023, 19, pp.1305-1320. ⟨10.5194/cp-19-1305-2023⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-19-1305-2023 insu-04188266 https://insu.hal.science/insu-04188266 https://insu.hal.science/insu-04188266/document https://insu.hal.science/insu-04188266/file/cp-19-1305-2023.pdf BIBCODE: 2023CliPa.19.1305S doi:10.5194/cp-19-1305-2023 WOS: 001024418600001 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/cp-19-1305-2023 |
container_title |
Climate of the Past |
container_volume |
19 |
container_issue |
7 |
container_start_page |
1305 |
op_container_end_page |
1320 |
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1799474776528388096 |
spelling |
ftmuseumnhn:oai:HAL:insu-04188266v1 2024-05-19T07:35:46+00:00 Changing sources and burial of organic carbon in the Chukchi Sea sediments with retreating sea ice over recent centuries Su, Liang Ren, Jian Sicre, Marie-Alexandrine Bai, Youcheng Zhao, Ruoshi Han, Xibing Li, Zhongqiao Jin, Haiyan Astakhov, Anatolii S. Shi, Xuefa Chen, Jianfang Ocean College Zhejiang University Key Laboratory of Marine Ecosystem Dynamics Variabilité de l'Océan et de la Glace de mer (VOG) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Second Institute of Oceanography State Oceanic Administration (SOA) State Key Laboratory of Satellite Ocean Environment Dynamics (SOED) V.I. Il'ichev Pacific Oceanological Institute Il'ichev Pacific Oceanological Institute First Institute of Oceanography Qingdao (FIO) Ministry of Natural Resources of China 2023 https://insu.hal.science/insu-04188266 https://insu.hal.science/insu-04188266/document https://insu.hal.science/insu-04188266/file/cp-19-1305-2023.pdf https://doi.org/10.5194/cp-19-1305-2023 en eng HAL CCSD European Geosciences Union (EGU) info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-19-1305-2023 insu-04188266 https://insu.hal.science/insu-04188266 https://insu.hal.science/insu-04188266/document https://insu.hal.science/insu-04188266/file/cp-19-1305-2023.pdf BIBCODE: 2023CliPa.19.1305S doi:10.5194/cp-19-1305-2023 WOS: 001024418600001 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://insu.hal.science/insu-04188266 Climate of the Past, 2023, 19, pp.1305-1320. ⟨10.5194/cp-19-1305-2023⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2023 ftmuseumnhn https://doi.org/10.5194/cp-19-1305-2023 2024-04-25T00:38:47Z International audience Decreasing sea ice extent caused by climate change is affecting the carbon cycle of the Arctic Ocean. In this study, surface sediments across the western Arctic Ocean are investigated to characterize sources of sedimentary organic carbon (OC). Bulk organic parameters (total organic carbon, total nitrogen, δ 13 C org , and δ 15 N) and molecular organic biomarkers (e.g., sterols and highly branched isoprenoids - HBIs) are combined to distinguish between sympagic, pelagic, and terrestrial OC sources. Their downcore profiles generated at the Chukchi Sea R1 core site (74 ∘ N) are then used to evaluate changes in the relative contribution of these components of sedimentary OC over the last 200 years with decreasing sea ice. Our data evidence that, from the 1820s to the 1930s, prevailing high sea ice cover inhibited in situ primary production, resulting in prominent land-derived material in sediments. Then, from the 1930s to the 1980s, primary production started increasing with the gradual decline of summer sea ice. The ratio of sympagic and pelagic OC began to rise to account for the larger portion of sedimentary OC. Since the 1980s, accelerated sea ice loss led to enhanced primary production, stabilizing over the last decades due to freshwater-induced surface ocean stratification in summer. Article in Journal/Newspaper Arctic Arctic Ocean Chukchi Chukchi Sea Climate change Sea ice Muséum National d'Histoire Naturelle (MNHM): HAL Climate of the Past 19 7 1305 1320 |