The Antarctic contribution to Holocene global sea level rise
The Holocene glacial and climatic development in Antarctica differed considerably from that in the Northern Hemisphere. Initial deglaciation of inner shelf and adjacent land areas in Antarctica dates back to between 10-8 Kya, when most Northern Hemisphere ice sheets had already disappeared or dimini...
Published in: | Polar Research |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Norwegian Polar Institute
1999
|
Subjects: | |
Online Access: | https://polarresearch.net/index.php/polar/article/view/2247 https://doi.org/10.3402/polar.v18i2.6591 |
id |
ftjpolarres:oai:journals.openacademia.net:article/2247 |
---|---|
record_format |
openpolar |
spelling |
ftjpolarres:oai:journals.openacademia.net:article/2247 2023-05-15T14:01:21+02:00 The Antarctic contribution to Holocene global sea level rise Ingólfsson, Ólafur Hjort, Christian 1999-01-12 application/pdf https://polarresearch.net/index.php/polar/article/view/2247 https://doi.org/10.3402/polar.v18i2.6591 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2247/5498 https://polarresearch.net/index.php/polar/article/view/2247 doi:10.3402/polar.v18i2.6591 Copyright (c) 2018 Polar Research Polar Research; Vol. 18 No. 2 (1999): Special issue: Proceedings of the International Symposium on Polar Aspects of Global Change; 323-330 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1999 ftjpolarres https://doi.org/10.3402/polar.v18i2.6591 2021-11-11T19:12:21Z The Holocene glacial and climatic development in Antarctica differed considerably from that in the Northern Hemisphere. Initial deglaciation of inner shelf and adjacent land areas in Antarctica dates back to between 10-8 Kya, when most Northern Hemisphere ice sheets had already disappeared or diminished considerably. The continued deglaciation of currently ice-free land in Antarctica occurred gradually between ca. 8-5 Kya. A large southern portion of the marine-based Ross Ice Sheet disintegrated during this late deglaciation phase. Some currently ice-free areas were deglaciated as late as 3 Kya. Between 8-5 Kya, global glacio-eustatically driven sea level rose by 10-17m, with 4-8 m of this increase occurring after 7 Kya. Since the Northern Hemisphere ice sheets had practically disappeared by 8-7 Kya, we suggest that Antarctic deglaciation caused a considerable part of the global sea level rise between 8-7 Kya, and most of it between 7-5 Kya. The global mid-Holocene sea level high stand, broadly dated to between 8-4 Kya, and the Littorina-Tapes transgressions in Scandinavia and simultaneous transgressions recorded from sites e.g. in Svalbard and Greenland, dated to 7-5 Kya, probably reflect input of meltwater from the Antarctic deglaciation. Article in Journal/Newspaper Antarc* Antarctic Antarctica Greenland Ice Sheet Polar Research Svalbard Polar Research (E-Journal) Antarctic The Antarctic Svalbard Greenland Kya ENVELOPE(8.308,8.308,63.772,63.772) Polar Research 18 2 323 330 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
The Holocene glacial and climatic development in Antarctica differed considerably from that in the Northern Hemisphere. Initial deglaciation of inner shelf and adjacent land areas in Antarctica dates back to between 10-8 Kya, when most Northern Hemisphere ice sheets had already disappeared or diminished considerably. The continued deglaciation of currently ice-free land in Antarctica occurred gradually between ca. 8-5 Kya. A large southern portion of the marine-based Ross Ice Sheet disintegrated during this late deglaciation phase. Some currently ice-free areas were deglaciated as late as 3 Kya. Between 8-5 Kya, global glacio-eustatically driven sea level rose by 10-17m, with 4-8 m of this increase occurring after 7 Kya. Since the Northern Hemisphere ice sheets had practically disappeared by 8-7 Kya, we suggest that Antarctic deglaciation caused a considerable part of the global sea level rise between 8-7 Kya, and most of it between 7-5 Kya. The global mid-Holocene sea level high stand, broadly dated to between 8-4 Kya, and the Littorina-Tapes transgressions in Scandinavia and simultaneous transgressions recorded from sites e.g. in Svalbard and Greenland, dated to 7-5 Kya, probably reflect input of meltwater from the Antarctic deglaciation. |
format |
Article in Journal/Newspaper |
author |
Ingólfsson, Ólafur Hjort, Christian |
spellingShingle |
Ingólfsson, Ólafur Hjort, Christian The Antarctic contribution to Holocene global sea level rise |
author_facet |
Ingólfsson, Ólafur Hjort, Christian |
author_sort |
Ingólfsson, Ólafur |
title |
The Antarctic contribution to Holocene global sea level rise |
title_short |
The Antarctic contribution to Holocene global sea level rise |
title_full |
The Antarctic contribution to Holocene global sea level rise |
title_fullStr |
The Antarctic contribution to Holocene global sea level rise |
title_full_unstemmed |
The Antarctic contribution to Holocene global sea level rise |
title_sort |
antarctic contribution to holocene global sea level rise |
publisher |
Norwegian Polar Institute |
publishDate |
1999 |
url |
https://polarresearch.net/index.php/polar/article/view/2247 https://doi.org/10.3402/polar.v18i2.6591 |
long_lat |
ENVELOPE(8.308,8.308,63.772,63.772) |
geographic |
Antarctic The Antarctic Svalbard Greenland Kya |
geographic_facet |
Antarctic The Antarctic Svalbard Greenland Kya |
genre |
Antarc* Antarctic Antarctica Greenland Ice Sheet Polar Research Svalbard |
genre_facet |
Antarc* Antarctic Antarctica Greenland Ice Sheet Polar Research Svalbard |
op_source |
Polar Research; Vol. 18 No. 2 (1999): Special issue: Proceedings of the International Symposium on Polar Aspects of Global Change; 323-330 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2247/5498 https://polarresearch.net/index.php/polar/article/view/2247 doi:10.3402/polar.v18i2.6591 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v18i2.6591 |
container_title |
Polar Research |
container_volume |
18 |
container_issue |
2 |
container_start_page |
323 |
op_container_end_page |
330 |
_version_ |
1766271081055780864 |