Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland
Køge Bugt, in southeast Greenland, hosts three of the largest glaciers of the Greenland Ice Sheet; these have been major contributors to ice loss in the last two decades. Despite its importance, the Holocene history of this area has not been investigated. We present a 9100 year sediment core record...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/a67cecc8-3e6e-4bff-9cd1-c744dda4e30d 2023-05-15T16:21:09+02:00 Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland Dyke, Laurence M Andresen, Camilla S Seidenkrantz, Marit-Solveig Hughes, Anna L C Hiemstra, John F Murray, Tavi Bjørk, Anders A Sutherland, David A Vermassen, Flor 2017-09-26 application/pdf https://pure.au.dk/portal/da/publications/minimal-holocene-retreat-of-large-tidewater-glaciers-in-koege-bugt-southeast-greenland(a67cecc8-3e6e-4bff-9cd1-c744dda4e30d).html https://doi.org/10.1038/s41598-017-12018-x https://pure.au.dk/ws/files/117612587/s41598_017_12018_x.pdf eng eng info:eu-repo/semantics/openAccess Dyke , L M , Andresen , C S , Seidenkrantz , M-S , Hughes , A L C , Hiemstra , J F , Murray , T , Bjørk , A A , Sutherland , D A & Vermassen , F 2017 , ' Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland ' , Scientific Reports , vol. 7 , no. 1 , 12330 . https://doi.org/10.1038/s41598-017-12018-x Journal Article article 2017 ftuniaarhuspubl https://doi.org/10.1038/s41598-017-12018-x 2022-11-23T23:55:03Z Køge Bugt, in southeast Greenland, hosts three of the largest glaciers of the Greenland Ice Sheet; these have been major contributors to ice loss in the last two decades. Despite its importance, the Holocene history of this area has not been investigated. We present a 9100 year sediment core record of glaciological and oceanographic changes from analysis of foraminiferal assemblages, the abundance of ice-rafted debris, and sortable silt grain size data. Results show that ice-rafted debris accumulated constantly throughout the core; this demonstrates that glaciers in Køge Bugt remained in tidewater settings throughout the last 9100 years. This observation constrains maximum Holocene glacier retreat here to less than 6 km from present-day positions. Retreat was minimal despite oceanic and climatic conditions during the early-Holocene that were at least as warm as the present-day. The limited Holocene retreat of glaciers in Køge Bugt was controlled by the subglacial topography of the area; the steeply sloping bed allowed glaciers here to stabilise during retreat. These findings underscore the need to account for individual glacier geometry when predicting future behaviour. We anticipate that glaciers in Køge Bugt will remain in stable configurations in the near-future, despite the predicted continuation of atmospheric and oceanic warming. Article in Journal/Newspaper glacier Greenland Ice Sheet Tidewater Aarhus University: Research Greenland Scientific Reports 7 1 |
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Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Journal Article |
spellingShingle |
Journal Article Dyke, Laurence M Andresen, Camilla S Seidenkrantz, Marit-Solveig Hughes, Anna L C Hiemstra, John F Murray, Tavi Bjørk, Anders A Sutherland, David A Vermassen, Flor Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland |
topic_facet |
Journal Article |
description |
Køge Bugt, in southeast Greenland, hosts three of the largest glaciers of the Greenland Ice Sheet; these have been major contributors to ice loss in the last two decades. Despite its importance, the Holocene history of this area has not been investigated. We present a 9100 year sediment core record of glaciological and oceanographic changes from analysis of foraminiferal assemblages, the abundance of ice-rafted debris, and sortable silt grain size data. Results show that ice-rafted debris accumulated constantly throughout the core; this demonstrates that glaciers in Køge Bugt remained in tidewater settings throughout the last 9100 years. This observation constrains maximum Holocene glacier retreat here to less than 6 km from present-day positions. Retreat was minimal despite oceanic and climatic conditions during the early-Holocene that were at least as warm as the present-day. The limited Holocene retreat of glaciers in Køge Bugt was controlled by the subglacial topography of the area; the steeply sloping bed allowed glaciers here to stabilise during retreat. These findings underscore the need to account for individual glacier geometry when predicting future behaviour. We anticipate that glaciers in Køge Bugt will remain in stable configurations in the near-future, despite the predicted continuation of atmospheric and oceanic warming. |
format |
Article in Journal/Newspaper |
author |
Dyke, Laurence M Andresen, Camilla S Seidenkrantz, Marit-Solveig Hughes, Anna L C Hiemstra, John F Murray, Tavi Bjørk, Anders A Sutherland, David A Vermassen, Flor |
author_facet |
Dyke, Laurence M Andresen, Camilla S Seidenkrantz, Marit-Solveig Hughes, Anna L C Hiemstra, John F Murray, Tavi Bjørk, Anders A Sutherland, David A Vermassen, Flor |
author_sort |
Dyke, Laurence M |
title |
Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland |
title_short |
Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland |
title_full |
Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland |
title_fullStr |
Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland |
title_full_unstemmed |
Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland |
title_sort |
minimal holocene retreat of large tidewater glaciers in køge bugt, southeast greenland |
publishDate |
2017 |
url |
https://pure.au.dk/portal/da/publications/minimal-holocene-retreat-of-large-tidewater-glaciers-in-koege-bugt-southeast-greenland(a67cecc8-3e6e-4bff-9cd1-c744dda4e30d).html https://doi.org/10.1038/s41598-017-12018-x https://pure.au.dk/ws/files/117612587/s41598_017_12018_x.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet Tidewater |
genre_facet |
glacier Greenland Ice Sheet Tidewater |
op_source |
Dyke , L M , Andresen , C S , Seidenkrantz , M-S , Hughes , A L C , Hiemstra , J F , Murray , T , Bjørk , A A , Sutherland , D A & Vermassen , F 2017 , ' Minimal Holocene retreat of large tidewater glaciers in Køge Bugt, southeast Greenland ' , Scientific Reports , vol. 7 , no. 1 , 12330 . https://doi.org/10.1038/s41598-017-12018-x |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41598-017-12018-x |
container_title |
Scientific Reports |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766009167372353536 |