Glaciological characteristics in the Dome Fuji region and new assessment for "Oldest Ice"
A key objective in palaeo-climatology is the retrieval of a continuous Antarctic ice-core record dating back 1.5 Ma. The identification of a suitable Antarctic site requires sufficient knowledge of the subglacial landscape beneath the Antarctic Ice Sheet. Here, we present new ice thickness informati...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/278455 2023-05-15T13:37:30+02:00 Glaciological characteristics in the Dome Fuji region and new assessment for "Oldest Ice" Karlsson, Nanna N.B. Binder, Tobias Eagles, Graeme Helm, Veit Pattyn, Frank Van Liefferinge, Brice Eisen, Olaf 2018-07 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/278455 https://dipot.ulb.ac.be/dspace/bitstream/2013/278455/3/doi_262082.pdf en eng uri/info:doi/10.5194/tc-12-2413-2018 uri/info:scp/85050700440 https://dipot.ulb.ac.be/dspace/bitstream/2013/278455/3/doi_262082.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/278455 1 full-text file(s): info:eu-repo/semantics/openAccess The Cryosphere, 12 (7 Géologie et minéralogie Econométrie et méthodes statistiques :théorie et applications info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2018 ftunivbruxelles 2022-06-12T22:09:21Z A key objective in palaeo-climatology is the retrieval of a continuous Antarctic ice-core record dating back 1.5 Ma. The identification of a suitable Antarctic site requires sufficient knowledge of the subglacial landscape beneath the Antarctic Ice Sheet. Here, we present new ice thickness information from the Dome Fuji region, East Antarctica, based on airborne radar surveys conducted during the 2014/15 and 2016/17 southern summers. Compared to previous maps of the region, the new dataset shows a more complex landscape with networks of valleys and mountain plateaus. We use the new dataset as input in a thermokinematic model that incorporates uncertainties in geothermal heat flux values in order to improve the predictions of potential ice-core sites. Our results show that especially the region immediately south of Dome Fuji station persists as a good candidate site for obtaining an old ice core. An initial assessment of basal conditions revealed the existence of what appears to be subglacial lakes. Further radar data analysis shows overall high continuity of layer stratigraphy in the region. This indicates that extending the age-depth information from the Dome Fuji ice core to a new ice-core drill site is a viable option. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet The Cryosphere DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic The Antarctic East Antarctica Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) Dome Fuji Station ENVELOPE(39.703,39.703,-77.317,-77.317) |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Géologie et minéralogie Econométrie et méthodes statistiques :théorie et applications |
spellingShingle |
Géologie et minéralogie Econométrie et méthodes statistiques :théorie et applications Karlsson, Nanna N.B. Binder, Tobias Eagles, Graeme Helm, Veit Pattyn, Frank Van Liefferinge, Brice Eisen, Olaf Glaciological characteristics in the Dome Fuji region and new assessment for "Oldest Ice" |
topic_facet |
Géologie et minéralogie Econométrie et méthodes statistiques :théorie et applications |
description |
A key objective in palaeo-climatology is the retrieval of a continuous Antarctic ice-core record dating back 1.5 Ma. The identification of a suitable Antarctic site requires sufficient knowledge of the subglacial landscape beneath the Antarctic Ice Sheet. Here, we present new ice thickness information from the Dome Fuji region, East Antarctica, based on airborne radar surveys conducted during the 2014/15 and 2016/17 southern summers. Compared to previous maps of the region, the new dataset shows a more complex landscape with networks of valleys and mountain plateaus. We use the new dataset as input in a thermokinematic model that incorporates uncertainties in geothermal heat flux values in order to improve the predictions of potential ice-core sites. Our results show that especially the region immediately south of Dome Fuji station persists as a good candidate site for obtaining an old ice core. An initial assessment of basal conditions revealed the existence of what appears to be subglacial lakes. Further radar data analysis shows overall high continuity of layer stratigraphy in the region. This indicates that extending the age-depth information from the Dome Fuji ice core to a new ice-core drill site is a viable option. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Karlsson, Nanna N.B. Binder, Tobias Eagles, Graeme Helm, Veit Pattyn, Frank Van Liefferinge, Brice Eisen, Olaf |
author_facet |
Karlsson, Nanna N.B. Binder, Tobias Eagles, Graeme Helm, Veit Pattyn, Frank Van Liefferinge, Brice Eisen, Olaf |
author_sort |
Karlsson, Nanna N.B. |
title |
Glaciological characteristics in the Dome Fuji region and new assessment for "Oldest Ice" |
title_short |
Glaciological characteristics in the Dome Fuji region and new assessment for "Oldest Ice" |
title_full |
Glaciological characteristics in the Dome Fuji region and new assessment for "Oldest Ice" |
title_fullStr |
Glaciological characteristics in the Dome Fuji region and new assessment for "Oldest Ice" |
title_full_unstemmed |
Glaciological characteristics in the Dome Fuji region and new assessment for "Oldest Ice" |
title_sort |
glaciological characteristics in the dome fuji region and new assessment for "oldest ice" |
publishDate |
2018 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/278455 https://dipot.ulb.ac.be/dspace/bitstream/2013/278455/3/doi_262082.pdf |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) ENVELOPE(39.703,39.703,-77.317,-77.317) |
geographic |
Antarctic The Antarctic East Antarctica Dome Fuji Dome Fuji Station |
geographic_facet |
Antarctic The Antarctic East Antarctica Dome Fuji Dome Fuji Station |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet The Cryosphere |
op_source |
The Cryosphere, 12 (7 |
op_relation |
uri/info:doi/10.5194/tc-12-2413-2018 uri/info:scp/85050700440 https://dipot.ulb.ac.be/dspace/bitstream/2013/278455/3/doi_262082.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/278455 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/openAccess |
_version_ |
1766092613423726592 |