Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology
Udgivelsesdato: 2008-04-25 Four ice cores from the Agassiz ice cap in the Canadian high arctic and one ice core from the Renland ice cap in eastern Greenland have been synchronized to the Greenland Ice Core Chronology 2005 (GICC05) which is based on annual layer counts in the DYE-3, GRIP and NGRIP i...
Published in: | Journal of Geophysical Research |
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Online Access: | https://curis.ku.dk/portal/da/publications/synchronizing-ice-cores-from-the-renland-and-agassiz-ice-caps-to-the-greenland-ice-core-chronology(3f2eb120-c202-11dc-bee9-02004c4f4f50).html https://doi.org/10.1029/2007JD009143 |
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ftcopenhagenunip:oai:pure.atira.dk:publications/3f2eb120-c202-11dc-bee9-02004c4f4f50 2023-07-23T04:17:56+02:00 Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology Vinther, Bo Møllesøe Clausen, Henrik Brink Fischer, D. A. Koerner, R. M. Johnsen, Sigfus Johann Andersen, Katrine Krogh Dahl-Jensen, Dorthe Rasmussen, Sune Olander Steffensen, Jørgen Peder Svensson, Anders 2008 https://curis.ku.dk/portal/da/publications/synchronizing-ice-cores-from-the-renland-and-agassiz-ice-caps-to-the-greenland-ice-core-chronology(3f2eb120-c202-11dc-bee9-02004c4f4f50).html https://doi.org/10.1029/2007JD009143 eng eng info:eu-repo/semantics/closedAccess Vinther , B M , Clausen , H B , Fischer , D A , Koerner , R M , Johnsen , S J , Andersen , K K , Dahl-Jensen , D , Rasmussen , S O , Steffensen , J P & Svensson , A 2008 , ' Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology ' , Journal of Geophysical Research - Oceans , vol. 113 , no. D08115 . https://doi.org/10.1029/2007JD009143 article 2008 ftcopenhagenunip https://doi.org/10.1029/2007JD009143 2023-07-05T22:57:09Z Udgivelsesdato: 2008-04-25 Four ice cores from the Agassiz ice cap in the Canadian high arctic and one ice core from the Renland ice cap in eastern Greenland have been synchronized to the Greenland Ice Core Chronology 2005 (GICC05) which is based on annual layer counts in the DYE-3, GRIP and NGRIP ice cores. Volcanic reference horizons, seen in electrical conductivity measurements (ECM) have been used to carry out the synchronization throughout the Holocene. The Agassiz ice cores have been matched to the NGRIP ice core ECM signal, while the Renland core has been matched to the GRIP ice core ECM signal, thus tying the cores to GICC05. Furthermore, it has been possible to synchronize the Renland ice core to NGRIP-GICC05 in the glacial period back to 60,000 years b2k (years before A.D. 2000), on the basis of a matching of transitions between stadials and interstadials. This work brings the total number of ice core records that have been rigorously tied to the GICC05 timescale up to nine. Renland annual layer thicknesses are increasing with depth during the period from 7 to 8.5 ka b2k, a highly unusual observation only matched by a similar thickness increase in the glacial section of the Renland core some 60 ka ago. Annual layer thicknesses in the Agassiz ice cores point to a well-developed Raymond bump in the Agassiz ice cap. Article in Journal/Newspaper Arctic Dye 3 Dye-3 Greenland Greenland ice core GRIP Ice cap ice core NGRIP University of Copenhagen: Research Arctic Greenland Renland ENVELOPE(-26.750,-26.750,71.200,71.200) Agassiz Ice Cap ENVELOPE(-75.996,-75.996,80.252,80.252) Journal of Geophysical Research 113 D8 |
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Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
Udgivelsesdato: 2008-04-25 Four ice cores from the Agassiz ice cap in the Canadian high arctic and one ice core from the Renland ice cap in eastern Greenland have been synchronized to the Greenland Ice Core Chronology 2005 (GICC05) which is based on annual layer counts in the DYE-3, GRIP and NGRIP ice cores. Volcanic reference horizons, seen in electrical conductivity measurements (ECM) have been used to carry out the synchronization throughout the Holocene. The Agassiz ice cores have been matched to the NGRIP ice core ECM signal, while the Renland core has been matched to the GRIP ice core ECM signal, thus tying the cores to GICC05. Furthermore, it has been possible to synchronize the Renland ice core to NGRIP-GICC05 in the glacial period back to 60,000 years b2k (years before A.D. 2000), on the basis of a matching of transitions between stadials and interstadials. This work brings the total number of ice core records that have been rigorously tied to the GICC05 timescale up to nine. Renland annual layer thicknesses are increasing with depth during the period from 7 to 8.5 ka b2k, a highly unusual observation only matched by a similar thickness increase in the glacial section of the Renland core some 60 ka ago. Annual layer thicknesses in the Agassiz ice cores point to a well-developed Raymond bump in the Agassiz ice cap. |
format |
Article in Journal/Newspaper |
author |
Vinther, Bo Møllesøe Clausen, Henrik Brink Fischer, D. A. Koerner, R. M. Johnsen, Sigfus Johann Andersen, Katrine Krogh Dahl-Jensen, Dorthe Rasmussen, Sune Olander Steffensen, Jørgen Peder Svensson, Anders |
spellingShingle |
Vinther, Bo Møllesøe Clausen, Henrik Brink Fischer, D. A. Koerner, R. M. Johnsen, Sigfus Johann Andersen, Katrine Krogh Dahl-Jensen, Dorthe Rasmussen, Sune Olander Steffensen, Jørgen Peder Svensson, Anders Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology |
author_facet |
Vinther, Bo Møllesøe Clausen, Henrik Brink Fischer, D. A. Koerner, R. M. Johnsen, Sigfus Johann Andersen, Katrine Krogh Dahl-Jensen, Dorthe Rasmussen, Sune Olander Steffensen, Jørgen Peder Svensson, Anders |
author_sort |
Vinther, Bo Møllesøe |
title |
Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology |
title_short |
Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology |
title_full |
Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology |
title_fullStr |
Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology |
title_full_unstemmed |
Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology |
title_sort |
synchronizing ice cores from the renland and agassiz ice caps to the greenland ice core chronology |
publishDate |
2008 |
url |
https://curis.ku.dk/portal/da/publications/synchronizing-ice-cores-from-the-renland-and-agassiz-ice-caps-to-the-greenland-ice-core-chronology(3f2eb120-c202-11dc-bee9-02004c4f4f50).html https://doi.org/10.1029/2007JD009143 |
long_lat |
ENVELOPE(-26.750,-26.750,71.200,71.200) ENVELOPE(-75.996,-75.996,80.252,80.252) |
geographic |
Arctic Greenland Renland Agassiz Ice Cap |
geographic_facet |
Arctic Greenland Renland Agassiz Ice Cap |
genre |
Arctic Dye 3 Dye-3 Greenland Greenland ice core GRIP Ice cap ice core NGRIP |
genre_facet |
Arctic Dye 3 Dye-3 Greenland Greenland ice core GRIP Ice cap ice core NGRIP |
op_source |
Vinther , B M , Clausen , H B , Fischer , D A , Koerner , R M , Johnsen , S J , Andersen , K K , Dahl-Jensen , D , Rasmussen , S O , Steffensen , J P & Svensson , A 2008 , ' Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology ' , Journal of Geophysical Research - Oceans , vol. 113 , no. D08115 . https://doi.org/10.1029/2007JD009143 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1029/2007JD009143 |
container_title |
Journal of Geophysical Research |
container_volume |
113 |
container_issue |
D8 |
_version_ |
1772180042243112960 |