"EDML1": a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years
International audience A chronology called EDML1 has been developed for the EPICA ice core from Dronning Maud Land (EDML). EDML1 is closely interlinked with EDC3 , the new chronology for the EPICA ice core from Dome-C (EDC) through a stratigraphic match between EDML and EDC that consists of 322 volc...
Main Authors: | , , , , , , , , , , , , , , , , , , , |
---|---|
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2007
|
Subjects: | |
Online Access: | https://hal.science/hal-00330729 https://hal.science/hal-00330729/document https://hal.science/hal-00330729/file/cpd-3-549-2007.pdf |
id |
ftinraparis:oai:HAL:hal-00330729v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Institut National de la Recherche Agronomique: ProdINRA |
op_collection_id |
ftinraparis |
language |
English |
topic |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Ruth, U. Barnola, J.-M. Beer, J. Bigler, M. Blunier, T. Castellano, E. Fischer, H. Fundel, F. Huybrechts, P. Kaufmann, P. Kipfstuhl, S. Lambrecht, A. Morganti, A. Oerter, H. Parrenin, F. Rybak, O. Severi, M. Udisti, R. Wilhelms, F. Wolff, E. "EDML1": a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years |
topic_facet |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience A chronology called EDML1 has been developed for the EPICA ice core from Dronning Maud Land (EDML). EDML1 is closely interlinked with EDC3 , the new chronology for the EPICA ice core from Dome-C (EDC) through a stratigraphic match between EDML and EDC that consists of 322 volcanic match points over the last 128 ka. The EDC3 chronology comprises a glaciological model at EDC, which is constrained and later selectively tuned using primary dating information from EDC as well as from EDML, the latter being transferred using the tight stratigraphic link between the two cores. Finally, EDML1 was built by exporting EDC3 to EDML. For ages younger than 41 ka BP EDML1/EDC3 is based on dated volcanic events and on a match to the Greenlandic GICC05 time scale via 10 Be and methane. The internal consistency between EDML1 and EDC3 is estimated to be typically ~6 years and always less than 450 years over the last 128 ka (always less than 130 years over the last 60 ka), which reflects an unprecedented synchrony of time scales. EDML1 ends at 150 ka BP (2417 m depth) because the match between EDML and EDC becomes ambiguous further down. This hints to a complex ice flow history for the deepest 350 m of the EDML ice core, which amongst other reasons may be caused by spatial variations of the geothermal heat flux. |
author2 |
Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association 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) Swiss Federal Institute of Aquatic Science and Technology Swiss Federal institute of aquatic science and technology Climate and Environmental Physics Bern (CEP) Physikalisches Institut Bern Universität Bern = University of Bern = Université de Berne (UNIBE)-Universität Bern = University of Bern = Université de Berne (UNIBE) Ice and Climate Research Department of Chemistry Departement Geografie British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Ruth, U. Barnola, J.-M. Beer, J. Bigler, M. Blunier, T. Castellano, E. Fischer, H. Fundel, F. Huybrechts, P. Kaufmann, P. Kipfstuhl, S. Lambrecht, A. Morganti, A. Oerter, H. Parrenin, F. Rybak, O. Severi, M. Udisti, R. Wilhelms, F. Wolff, E. |
author_facet |
Ruth, U. Barnola, J.-M. Beer, J. Bigler, M. Blunier, T. Castellano, E. Fischer, H. Fundel, F. Huybrechts, P. Kaufmann, P. Kipfstuhl, S. Lambrecht, A. Morganti, A. Oerter, H. Parrenin, F. Rybak, O. Severi, M. Udisti, R. Wilhelms, F. Wolff, E. |
author_sort |
Ruth, U. |
title |
"EDML1": a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years |
title_short |
"EDML1": a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years |
title_full |
"EDML1": a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years |
title_fullStr |
"EDML1": a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years |
title_full_unstemmed |
"EDML1": a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years |
title_sort |
"edml1": a chronology for the epica deep ice core from dronning maud land, antarctica, over the last 150 000 years |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00330729 https://hal.science/hal-00330729/document https://hal.science/hal-00330729/file/cpd-3-549-2007.pdf |
genre |
Antarc* Antarctica Dronning Maud Land EPICA greenlandic ice core |
genre_facet |
Antarc* Antarctica Dronning Maud Land EPICA greenlandic ice core |
op_source |
ISSN: 1814-9340 EISSN: 1814-9359 Climate of the Past Discussions https://hal.science/hal-00330729 Climate of the Past Discussions, 2007, 3 (2), pp.549-574 |
op_relation |
hal-00330729 https://hal.science/hal-00330729 https://hal.science/hal-00330729/document https://hal.science/hal-00330729/file/cpd-3-549-2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1810493999258009600 |
spelling |
ftinraparis:oai:HAL:hal-00330729v1 2024-09-15T17:46:02+00:00 "EDML1": a chronology for the EPICA deep ice core from Dronning Maud Land, Antarctica, over the last 150 000 years Ruth, U. Barnola, J.-M. Beer, J. Bigler, M. Blunier, T. Castellano, E. Fischer, H. Fundel, F. Huybrechts, P. Kaufmann, P. Kipfstuhl, S. Lambrecht, A. Morganti, A. Oerter, H. Parrenin, F. Rybak, O. Severi, M. Udisti, R. Wilhelms, F. Wolff, E. Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association 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) Swiss Federal Institute of Aquatic Science and Technology Swiss Federal institute of aquatic science and technology Climate and Environmental Physics Bern (CEP) Physikalisches Institut Bern Universität Bern = University of Bern = Université de Berne (UNIBE)-Universität Bern = University of Bern = Université de Berne (UNIBE) Ice and Climate Research Department of Chemistry Departement Geografie British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2007-03-12 https://hal.science/hal-00330729 https://hal.science/hal-00330729/document https://hal.science/hal-00330729/file/cpd-3-549-2007.pdf en eng HAL CCSD European Geosciences Union (EGU) hal-00330729 https://hal.science/hal-00330729 https://hal.science/hal-00330729/document https://hal.science/hal-00330729/file/cpd-3-549-2007.pdf info:eu-repo/semantics/OpenAccess ISSN: 1814-9340 EISSN: 1814-9359 Climate of the Past Discussions https://hal.science/hal-00330729 Climate of the Past Discussions, 2007, 3 (2), pp.549-574 [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2007 ftinraparis 2024-07-30T14:12:32Z International audience A chronology called EDML1 has been developed for the EPICA ice core from Dronning Maud Land (EDML). EDML1 is closely interlinked with EDC3 , the new chronology for the EPICA ice core from Dome-C (EDC) through a stratigraphic match between EDML and EDC that consists of 322 volcanic match points over the last 128 ka. The EDC3 chronology comprises a glaciological model at EDC, which is constrained and later selectively tuned using primary dating information from EDC as well as from EDML, the latter being transferred using the tight stratigraphic link between the two cores. Finally, EDML1 was built by exporting EDC3 to EDML. For ages younger than 41 ka BP EDML1/EDC3 is based on dated volcanic events and on a match to the Greenlandic GICC05 time scale via 10 Be and methane. The internal consistency between EDML1 and EDC3 is estimated to be typically ~6 years and always less than 450 years over the last 128 ka (always less than 130 years over the last 60 ka), which reflects an unprecedented synchrony of time scales. EDML1 ends at 150 ka BP (2417 m depth) because the match between EDML and EDC becomes ambiguous further down. This hints to a complex ice flow history for the deepest 350 m of the EDML ice core, which amongst other reasons may be caused by spatial variations of the geothermal heat flux. Article in Journal/Newspaper Antarc* Antarctica Dronning Maud Land EPICA greenlandic ice core Institut National de la Recherche Agronomique: ProdINRA |