Evaluation of the sea ice proxy IP25 against observational and diatom proxy data in the SW Labrador Sea
International audience The recent rapid decline in Arctic sea ice cover has increased the need to improve the accuracy of the sea ice component in climate models and to provide detailed long-term sea ice concentration records, which are only available via proxy data. Recently, the highly branched is...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2013
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Online Access: | https://hal.science/hal-00914321 https://doi.org/10.1016/J.QUASCIREV.2013.02.012 |
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Université Paris 1 Panthéon-Sorbonne: HAL |
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English |
topic |
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Weckström, Kaarina Massé, Guillaume Collins, Lewis G. Hanhijärvi, Sami Bouloubassi, Ioanna Sicre, Marie-Alexandrine Seidenkrantz, Marit-Solveig A. Schmidt, Sabine Andersen, Thorbjørn J. Andersen, Morten L. Hill, Brian Kuijpers, Antoon Evaluation of the sea ice proxy IP25 against observational and diatom proxy data in the SW Labrador Sea |
topic_facet |
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience The recent rapid decline in Arctic sea ice cover has increased the need to improve the accuracy of the sea ice component in climate models and to provide detailed long-term sea ice concentration records, which are only available via proxy data. Recently, the highly branched isoprenoid IP25, identified in marine sediments underlying seasonal sea ice, has emerged as a potential sea ice specific proxy for past sea ice cover. We tested the reliability of this biomarker as a sea ice proxy against observational sea ice data (sea ice concentrations from the global HadISST1 database) and against a more established sea ice proxy (sea ice diatom abundance in sediments) in the South-West (SW) Labrador Sea. Furthermore, our study location at the southern margin of Arctic sea ice drift provided a new environmental setting in which to further test the novel PIP25 index. Our two study sites are located North-East (NE) and South-East (SE) of Newfoundland where box cores covering the last ca 100-150 years were collected. IP25 concentrations are nearly an order of magnitude higher and sea ice diatoms more abundant in sediments from NE of Newfoundland, where sea ice prevails 2-4 months per year compared to the sediments SE of Newfoundland, where conditions are generally ice-free year round. The IP25 fluxes NE of Newfoundland agree well with multi-decadal North Atlantic Oscillation (NAO) trends in the study area, which in previous studies have been shown to affect the climatic and sea ice conditions in the region. When assessed against observational sea ice data, IP25 appears to be a more sensitive indicator of sea ice variability in this setting compared to sea ice diatoms and proved to be a robust and reliable proxy for reconstructing low-frequency variability in past sea ice concentrations. The PIP25 index results clearly differ from the observed sea ice data underlining that caution needs to be exercised when using the index in different environmental settings. |
author2 |
Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Institut d'Histoire et de Philosophie des Sciences et des Techniques (IHPST) Université Paris 1 Panthéon-Sorbonne (UP1)-Département d'Etudes Cognitives - ENS Paris (DEC) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) |
format |
Article in Journal/Newspaper |
author |
Weckström, Kaarina Massé, Guillaume Collins, Lewis G. Hanhijärvi, Sami Bouloubassi, Ioanna Sicre, Marie-Alexandrine Seidenkrantz, Marit-Solveig A. Schmidt, Sabine Andersen, Thorbjørn J. Andersen, Morten L. Hill, Brian Kuijpers, Antoon |
author_facet |
Weckström, Kaarina Massé, Guillaume Collins, Lewis G. Hanhijärvi, Sami Bouloubassi, Ioanna Sicre, Marie-Alexandrine Seidenkrantz, Marit-Solveig A. Schmidt, Sabine Andersen, Thorbjørn J. Andersen, Morten L. Hill, Brian Kuijpers, Antoon |
author_sort |
Weckström, Kaarina |
title |
Evaluation of the sea ice proxy IP25 against observational and diatom proxy data in the SW Labrador Sea |
title_short |
Evaluation of the sea ice proxy IP25 against observational and diatom proxy data in the SW Labrador Sea |
title_full |
Evaluation of the sea ice proxy IP25 against observational and diatom proxy data in the SW Labrador Sea |
title_fullStr |
Evaluation of the sea ice proxy IP25 against observational and diatom proxy data in the SW Labrador Sea |
title_full_unstemmed |
Evaluation of the sea ice proxy IP25 against observational and diatom proxy data in the SW Labrador Sea |
title_sort |
evaluation of the sea ice proxy ip25 against observational and diatom proxy data in the sw labrador sea |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-00914321 https://doi.org/10.1016/J.QUASCIREV.2013.02.012 |
genre |
Arctic Labrador Sea Newfoundland North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic Labrador Sea Newfoundland North Atlantic North Atlantic oscillation Sea ice |
op_source |
ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-00914321 Quaternary Science Reviews, 2013, 79, pp.53-62. ⟨10.1016/J.QUASCIREV.2013.02.012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/J.QUASCIREV.2013.02.012 hal-00914321 https://hal.science/hal-00914321 BIBCODE: 2013QSRv.79.53W doi:10.1016/J.QUASCIREV.2013.02.012 |
op_doi |
https://doi.org/10.1016/J.QUASCIREV.2013.02.012 |
container_title |
Quaternary Science Reviews |
container_volume |
79 |
container_start_page |
53 |
op_container_end_page |
62 |
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1799475171666427904 |
spelling |
ftunivparis1:oai:HAL:hal-00914321v1 2024-05-19T07:36:08+00:00 Evaluation of the sea ice proxy IP25 against observational and diatom proxy data in the SW Labrador Sea Weckström, Kaarina Massé, Guillaume Collins, Lewis G. Hanhijärvi, Sami Bouloubassi, Ioanna Sicre, Marie-Alexandrine Seidenkrantz, Marit-Solveig A. Schmidt, Sabine Andersen, Thorbjørn J. Andersen, Morten L. Hill, Brian Kuijpers, Antoon Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Institut d'Histoire et de Philosophie des Sciences et des Techniques (IHPST) Université Paris 1 Panthéon-Sorbonne (UP1)-Département d'Etudes Cognitives - ENS Paris (DEC) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) 2013-11 https://hal.science/hal-00914321 https://doi.org/10.1016/J.QUASCIREV.2013.02.012 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/J.QUASCIREV.2013.02.012 hal-00914321 https://hal.science/hal-00914321 BIBCODE: 2013QSRv.79.53W doi:10.1016/J.QUASCIREV.2013.02.012 ISSN: 0277-3791 EISSN: 1873-457X Quaternary Science Reviews https://hal.science/hal-00914321 Quaternary Science Reviews, 2013, 79, pp.53-62. ⟨10.1016/J.QUASCIREV.2013.02.012⟩ [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2013 ftunivparis1 https://doi.org/10.1016/J.QUASCIREV.2013.02.012 2024-04-25T00:03:08Z International audience The recent rapid decline in Arctic sea ice cover has increased the need to improve the accuracy of the sea ice component in climate models and to provide detailed long-term sea ice concentration records, which are only available via proxy data. Recently, the highly branched isoprenoid IP25, identified in marine sediments underlying seasonal sea ice, has emerged as a potential sea ice specific proxy for past sea ice cover. We tested the reliability of this biomarker as a sea ice proxy against observational sea ice data (sea ice concentrations from the global HadISST1 database) and against a more established sea ice proxy (sea ice diatom abundance in sediments) in the South-West (SW) Labrador Sea. Furthermore, our study location at the southern margin of Arctic sea ice drift provided a new environmental setting in which to further test the novel PIP25 index. Our two study sites are located North-East (NE) and South-East (SE) of Newfoundland where box cores covering the last ca 100-150 years were collected. IP25 concentrations are nearly an order of magnitude higher and sea ice diatoms more abundant in sediments from NE of Newfoundland, where sea ice prevails 2-4 months per year compared to the sediments SE of Newfoundland, where conditions are generally ice-free year round. The IP25 fluxes NE of Newfoundland agree well with multi-decadal North Atlantic Oscillation (NAO) trends in the study area, which in previous studies have been shown to affect the climatic and sea ice conditions in the region. When assessed against observational sea ice data, IP25 appears to be a more sensitive indicator of sea ice variability in this setting compared to sea ice diatoms and proved to be a robust and reliable proxy for reconstructing low-frequency variability in past sea ice concentrations. The PIP25 index results clearly differ from the observed sea ice data underlining that caution needs to be exercised when using the index in different environmental settings. Article in Journal/Newspaper Arctic Labrador Sea Newfoundland North Atlantic North Atlantic oscillation Sea ice Université Paris 1 Panthéon-Sorbonne: HAL Quaternary Science Reviews 79 53 62 |