A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice Core Project (GRIP) ice core
The disturbed stratigraphy of the ice in the lowest 10% of the Greenland GRIP ice core prevents direct access to climatic information older than 110 kyr. This is especially regretful since this period covers the previous interglacial corresponding to marine isotopic stage 5e (MIS 5e, 130–120 kyr B.P...
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American Geophysical Union
2003
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ftdatacite:10.48350/158295 2023-05-15T13:52:47+02:00 A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice Core Project (GRIP) ice core Landais, Amaelle Chappellaz, Jérôme Delmotte, Marc Jouzel, Jean Blunier, Thomas Bourg, Christine Caillon, Nicolas Cherrier, Stéphane Malaizé, Bruno Masson-Delmotte, Valérie Raynaud, Dominique Schwander, Jakob Steffensen, Jørgen Peder 2003 https://dx.doi.org/10.48350/158295 https://boris.unibe.ch/158295/ unknown American Geophysical Union open access publisher holds copyright http://purl.org/coar/access_right/c_abf2 530 Physics Text article-journal journal article ScholarlyArticle 2003 ftdatacite https://doi.org/10.48350/158295 2021-11-05T12:55:41Z The disturbed stratigraphy of the ice in the lowest 10% of the Greenland GRIP ice core prevents direct access to climatic information older than 110 kyr. This is especially regretful since this period covers the previous interglacial corresponding to marine isotopic stage 5e (MIS 5e, 130–120 kyr B.P.). Here we present a tentative reconstruction of the disturbed GRIP chronology based on the succession of globally well mixed gas parameters. The GRIP δ18Oice chronological sequence is obtained by comparing a new set of δ18O of atmospheric O2 and CH4 measurements from the bottom section of the GRIP core with their counterpart in the Vostok Antarctic profiles. This comparison clearly identifies ice from the penultimate glacial maximum (MIS 6, 190–130 kyr B.P.) in the GRIP core. Further it allows rough reconstruction of the last interglacial period and of the last glacial inception in Greenland which appears to lay its Antarctic counterpart. Our data suggest that while Antarctica is already entering into a glaciation, Greenland is still experiencing a warm maximum during MIS 5e. Text Antarc* Antarctic Antarctica Greenland Greenland ice core Greenland Ice core Project GRIP ice core DataCite Metadata Store (German National Library of Science and Technology) Antarctic Greenland |
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DataCite Metadata Store (German National Library of Science and Technology) |
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topic |
530 Physics |
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530 Physics Landais, Amaelle Chappellaz, Jérôme Delmotte, Marc Jouzel, Jean Blunier, Thomas Bourg, Christine Caillon, Nicolas Cherrier, Stéphane Malaizé, Bruno Masson-Delmotte, Valérie Raynaud, Dominique Schwander, Jakob Steffensen, Jørgen Peder A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice Core Project (GRIP) ice core |
topic_facet |
530 Physics |
description |
The disturbed stratigraphy of the ice in the lowest 10% of the Greenland GRIP ice core prevents direct access to climatic information older than 110 kyr. This is especially regretful since this period covers the previous interglacial corresponding to marine isotopic stage 5e (MIS 5e, 130–120 kyr B.P.). Here we present a tentative reconstruction of the disturbed GRIP chronology based on the succession of globally well mixed gas parameters. The GRIP δ18Oice chronological sequence is obtained by comparing a new set of δ18O of atmospheric O2 and CH4 measurements from the bottom section of the GRIP core with their counterpart in the Vostok Antarctic profiles. This comparison clearly identifies ice from the penultimate glacial maximum (MIS 6, 190–130 kyr B.P.) in the GRIP core. Further it allows rough reconstruction of the last interglacial period and of the last glacial inception in Greenland which appears to lay its Antarctic counterpart. Our data suggest that while Antarctica is already entering into a glaciation, Greenland is still experiencing a warm maximum during MIS 5e. |
format |
Text |
author |
Landais, Amaelle Chappellaz, Jérôme Delmotte, Marc Jouzel, Jean Blunier, Thomas Bourg, Christine Caillon, Nicolas Cherrier, Stéphane Malaizé, Bruno Masson-Delmotte, Valérie Raynaud, Dominique Schwander, Jakob Steffensen, Jørgen Peder |
author_facet |
Landais, Amaelle Chappellaz, Jérôme Delmotte, Marc Jouzel, Jean Blunier, Thomas Bourg, Christine Caillon, Nicolas Cherrier, Stéphane Malaizé, Bruno Masson-Delmotte, Valérie Raynaud, Dominique Schwander, Jakob Steffensen, Jørgen Peder |
author_sort |
Landais, Amaelle |
title |
A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice Core Project (GRIP) ice core |
title_short |
A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice Core Project (GRIP) ice core |
title_full |
A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice Core Project (GRIP) ice core |
title_fullStr |
A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice Core Project (GRIP) ice core |
title_full_unstemmed |
A tentative reconstruction of the last interglacial and glacial inception in Greenland based on new gas measurements in the Greenland Ice Core Project (GRIP) ice core |
title_sort |
tentative reconstruction of the last interglacial and glacial inception in greenland based on new gas measurements in the greenland ice core project (grip) ice core |
publisher |
American Geophysical Union |
publishDate |
2003 |
url |
https://dx.doi.org/10.48350/158295 https://boris.unibe.ch/158295/ |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Antarctica Greenland Greenland ice core Greenland Ice core Project GRIP ice core |
genre_facet |
Antarc* Antarctic Antarctica Greenland Greenland ice core Greenland Ice core Project GRIP ice core |
op_rights |
open access publisher holds copyright http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/10.48350/158295 |
_version_ |
1766257474694807552 |