Surface water temperature changes in the high latitudes of the southern hemisphere over the Last Glacial-Interglacial Cycle
International audience A set of numerical equations is developed to estimate past sea surface temperatures (SST) from fossil Antarctic diatoms. These equations take into account both the biogeographic distribution and experimentally derived silica dissolution. The data represent a revision and expan...
Published in: | Paleoceanography |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
1992
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Subjects: | |
Online Access: | https://hal.science/hal-03334776 https://hal.science/hal-03334776v1/document https://hal.science/hal-03334776v1/file/paleo1992Pichon289.pdf https://doi.org/10.1029/92PA00709 |
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ftinraparis:oai:HAL:hal-03334776v1 |
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openpolar |
institution |
Open Polar |
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Institut National de la Recherche Agronomique: ProdINRA |
op_collection_id |
ftinraparis |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Pichon, Jean-Jacques Labeyrie, Laurent, D Bareille, Gilles Labracherie, Monique Duprat, Josette Jouzel, Jean Surface water temperature changes in the high latitudes of the southern hemisphere over the Last Glacial-Interglacial Cycle |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience A set of numerical equations is developed to estimate past sea surface temperatures (SST) from fossil Antarctic diatoms. These equations take into account both the biogeographic distribution and experimentally derived silica dissolution. The data represent a revision and expansion of a floral data base used previously and includes samples resulting from progressive opal dissolution experiments. Factor analysis of 166 samples (124 Holocene core top and 42 artificial samples) resolved four factors. Three of these factors depend on the water mass distribution (one Subantarctic and two Antarctic assemblages); factor 4 corresponds to a “dissolution assemblage”. Inclusion of this factor in the data analysis minimizes the effect of opal dissolution on the assemblages and gives accurate estimates of SST over a wide range of biosiliceous dissolution. A transfer function (DTF 166/34/4) is derived from the distribution of these factors versus summer SST. Its standard error is ± 1°C in the −1 to +10 °C summer temperature range. This transfer function is used to estimate SST changes in two southern ocean cores (43°S and 55°S) which cover the last climatic cycle. The time scale is derived from the changes in foraminiferal oxygen and carbon isotopic ratios. The reconstructed SST records present strong analogies with the air temperature record over Antarctica at the Vostok site, derived from changes in the isotopic ratio of the ice. This similarity may be used to compare the oceanic isotope stratigraphy and the Vostok time scale derived from ice flow model. The oceanic time scale, if taken at face value, would indicate that large changes in ice accumulation rates occurred between warm and cold periods. |
author2 |
Université de Bordeaux (UB) Centre des Faibles Radioactivités (CFR) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Modélisation du Climat et de l'Environnement (LMCE) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Pichon, Jean-Jacques Labeyrie, Laurent, D Bareille, Gilles Labracherie, Monique Duprat, Josette Jouzel, Jean |
author_facet |
Pichon, Jean-Jacques Labeyrie, Laurent, D Bareille, Gilles Labracherie, Monique Duprat, Josette Jouzel, Jean |
author_sort |
Pichon, Jean-Jacques |
title |
Surface water temperature changes in the high latitudes of the southern hemisphere over the Last Glacial-Interglacial Cycle |
title_short |
Surface water temperature changes in the high latitudes of the southern hemisphere over the Last Glacial-Interglacial Cycle |
title_full |
Surface water temperature changes in the high latitudes of the southern hemisphere over the Last Glacial-Interglacial Cycle |
title_fullStr |
Surface water temperature changes in the high latitudes of the southern hemisphere over the Last Glacial-Interglacial Cycle |
title_full_unstemmed |
Surface water temperature changes in the high latitudes of the southern hemisphere over the Last Glacial-Interglacial Cycle |
title_sort |
surface water temperature changes in the high latitudes of the southern hemisphere over the last glacial-interglacial cycle |
publisher |
HAL CCSD |
publishDate |
1992 |
url |
https://hal.science/hal-03334776 https://hal.science/hal-03334776v1/document https://hal.science/hal-03334776v1/file/paleo1992Pichon289.pdf https://doi.org/10.1029/92PA00709 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
ISSN: 0883-8305 Paleoceanography https://hal.science/hal-03334776 Paleoceanography, 1992, 7 (3), pp.289-318. ⟨10.1029/92PA00709⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/92PA00709 doi:10.1029/92PA00709 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/92PA00709 |
container_title |
Paleoceanography |
container_volume |
7 |
container_issue |
3 |
container_start_page |
289 |
op_container_end_page |
318 |
_version_ |
1812819775747784704 |
spelling |
ftinraparis:oai:HAL:hal-03334776v1 2024-10-13T14:03:20+00:00 Surface water temperature changes in the high latitudes of the southern hemisphere over the Last Glacial-Interglacial Cycle Pichon, Jean-Jacques Labeyrie, Laurent, D Bareille, Gilles Labracherie, Monique Duprat, Josette Jouzel, Jean Université de Bordeaux (UB) Centre des Faibles Radioactivités (CFR) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Modélisation du Climat et de l'Environnement (LMCE) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 1992 https://hal.science/hal-03334776 https://hal.science/hal-03334776v1/document https://hal.science/hal-03334776v1/file/paleo1992Pichon289.pdf https://doi.org/10.1029/92PA00709 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/92PA00709 doi:10.1029/92PA00709 info:eu-repo/semantics/OpenAccess ISSN: 0883-8305 Paleoceanography https://hal.science/hal-03334776 Paleoceanography, 1992, 7 (3), pp.289-318. ⟨10.1029/92PA00709⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 1992 ftinraparis https://doi.org/10.1029/92PA00709 2024-10-01T14:44:42Z International audience A set of numerical equations is developed to estimate past sea surface temperatures (SST) from fossil Antarctic diatoms. These equations take into account both the biogeographic distribution and experimentally derived silica dissolution. The data represent a revision and expansion of a floral data base used previously and includes samples resulting from progressive opal dissolution experiments. Factor analysis of 166 samples (124 Holocene core top and 42 artificial samples) resolved four factors. Three of these factors depend on the water mass distribution (one Subantarctic and two Antarctic assemblages); factor 4 corresponds to a “dissolution assemblage”. Inclusion of this factor in the data analysis minimizes the effect of opal dissolution on the assemblages and gives accurate estimates of SST over a wide range of biosiliceous dissolution. A transfer function (DTF 166/34/4) is derived from the distribution of these factors versus summer SST. Its standard error is ± 1°C in the −1 to +10 °C summer temperature range. This transfer function is used to estimate SST changes in two southern ocean cores (43°S and 55°S) which cover the last climatic cycle. The time scale is derived from the changes in foraminiferal oxygen and carbon isotopic ratios. The reconstructed SST records present strong analogies with the air temperature record over Antarctica at the Vostok site, derived from changes in the isotopic ratio of the ice. This similarity may be used to compare the oceanic isotope stratigraphy and the Vostok time scale derived from ice flow model. The oceanic time scale, if taken at face value, would indicate that large changes in ice accumulation rates occurred between warm and cold periods. Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Institut National de la Recherche Agronomique: ProdINRA Antarctic Southern Ocean Paleoceanography 7 3 289 318 |