An improved north-south synchronization of ice core records around the 41kyr 10Be peak
Using new high-resolution 10Be measurements in the NGRIP, EDML and Vostok ice cores, together with previously published data from EDC, we present an improved synchronization between Greenland and Antarctic ice cores during the Laschamp geomagnetic excursion ∼ 41kyr ago. We estimate the precision of...
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/129632 2023-05-15T14:02:01+02:00 An improved north-south synchronization of ice core records around the 41kyr 10Be peak Raisbeck, Grant M. Cauquoin, Alexandre Jouzel, Jean Landais, Amaelle Petit, Jean-Robert Lipenkov, Vladimir Y. Beer, Juerg Synal, Hans-Arno Oerter, Hans Johnsen, Sigfus J. Steffensen, Jorgen P. Svensson, Anders Yiou, Françoise 2017 application/application/pdf https://hdl.handle.net/20.500.11850/129632 https://doi.org/10.3929/ethz-b-000129632 en eng Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-13-217-2017 info:eu-repo/semantics/altIdentifier/wos/000396733900001 http://hdl.handle.net/20.500.11850/129632 doi:10.3929/ethz-b-000129632 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported CC-BY Climate of the Past, 13 (3) info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftethz https://doi.org/20.500.11850/129632 https://doi.org/10.3929/ethz-b-000129632 https://doi.org/10.5194/cp-13-217-2017 2022-04-25T13:50:28Z Using new high-resolution 10Be measurements in the NGRIP, EDML and Vostok ice cores, together with previously published data from EDC, we present an improved synchronization between Greenland and Antarctic ice cores during the Laschamp geomagnetic excursion ∼ 41kyr ago. We estimate the precision of this synchronization to be ±20 years, an order of magnitude better than previous work. We discuss the implications of this new synchronization for making improved estimates of the depth difference between ice and enclosed gas of the same age (Δdepth), difference between age of ice and enclosed gas at the same depth (Δage) in the EDC and EDML ice cores, spectral properties of the 10Be profiles and phasing between Dansgaard–Oeschger-10 (in NGRIP) and AIM-10 (in EDML and EDC). ISSN:1814-9324 ISSN:1814-9332 Article in Journal/Newspaper Antarc* Antarctic Greenland ice core NGRIP ETH Zürich Research Collection Antarctic Greenland |
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Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
description |
Using new high-resolution 10Be measurements in the NGRIP, EDML and Vostok ice cores, together with previously published data from EDC, we present an improved synchronization between Greenland and Antarctic ice cores during the Laschamp geomagnetic excursion ∼ 41kyr ago. We estimate the precision of this synchronization to be ±20 years, an order of magnitude better than previous work. We discuss the implications of this new synchronization for making improved estimates of the depth difference between ice and enclosed gas of the same age (Δdepth), difference between age of ice and enclosed gas at the same depth (Δage) in the EDC and EDML ice cores, spectral properties of the 10Be profiles and phasing between Dansgaard–Oeschger-10 (in NGRIP) and AIM-10 (in EDML and EDC). ISSN:1814-9324 ISSN:1814-9332 |
format |
Article in Journal/Newspaper |
author |
Raisbeck, Grant M. Cauquoin, Alexandre Jouzel, Jean Landais, Amaelle Petit, Jean-Robert Lipenkov, Vladimir Y. Beer, Juerg Synal, Hans-Arno Oerter, Hans Johnsen, Sigfus J. Steffensen, Jorgen P. Svensson, Anders Yiou, Françoise |
spellingShingle |
Raisbeck, Grant M. Cauquoin, Alexandre Jouzel, Jean Landais, Amaelle Petit, Jean-Robert Lipenkov, Vladimir Y. Beer, Juerg Synal, Hans-Arno Oerter, Hans Johnsen, Sigfus J. Steffensen, Jorgen P. Svensson, Anders Yiou, Françoise An improved north-south synchronization of ice core records around the 41kyr 10Be peak |
author_facet |
Raisbeck, Grant M. Cauquoin, Alexandre Jouzel, Jean Landais, Amaelle Petit, Jean-Robert Lipenkov, Vladimir Y. Beer, Juerg Synal, Hans-Arno Oerter, Hans Johnsen, Sigfus J. Steffensen, Jorgen P. Svensson, Anders Yiou, Françoise |
author_sort |
Raisbeck, Grant M. |
title |
An improved north-south synchronization of ice core records around the 41kyr 10Be peak |
title_short |
An improved north-south synchronization of ice core records around the 41kyr 10Be peak |
title_full |
An improved north-south synchronization of ice core records around the 41kyr 10Be peak |
title_fullStr |
An improved north-south synchronization of ice core records around the 41kyr 10Be peak |
title_full_unstemmed |
An improved north-south synchronization of ice core records around the 41kyr 10Be peak |
title_sort |
improved north-south synchronization of ice core records around the 41kyr 10be peak |
publisher |
Copernicus |
publishDate |
2017 |
url |
https://hdl.handle.net/20.500.11850/129632 https://doi.org/10.3929/ethz-b-000129632 |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Greenland ice core NGRIP |
genre_facet |
Antarc* Antarctic Greenland ice core NGRIP |
op_source |
Climate of the Past, 13 (3) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-13-217-2017 info:eu-repo/semantics/altIdentifier/wos/000396733900001 http://hdl.handle.net/20.500.11850/129632 doi:10.3929/ethz-b-000129632 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.11850/129632 https://doi.org/10.3929/ethz-b-000129632 https://doi.org/10.5194/cp-13-217-2017 |
_version_ |
1766272072297742336 |