Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia
Sub-Antarctic South Georgia is a key region for studying climate variability in the Southern Hemisphere, because of its position at the core of the Southern Hemisphere Westerly Wind belt and between the Antarctic Circumpolar Current and the Polar Frontal Zone. Here, we present a 5.8-m long high-reso...
Published in: | The Holocene |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
SAGE
2015
|
Subjects: | |
Online Access: | https://nrl.northumbria.ac.uk/id/eprint/18331/ https://doi.org/10.1177/0959683614557576 https://nrl.northumbria.ac.uk/id/eprint/18331/1/263.full.pdf |
id |
ftunivnorthumb:oai:nrl.northumbria.ac.uk:18331 |
---|---|
record_format |
openpolar |
spelling |
ftunivnorthumb:oai:nrl.northumbria.ac.uk:18331 2023-05-15T13:29:52+02:00 Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia Strother, Stephanie Salzmann, Ulrich Roberts, Stephen J. Hodgson, Dominic Woodward, John Van Nieuwenhuyze, Wim Verleyen, Elie Vyverman, Wim Moreton, Steven 2015-02 text https://nrl.northumbria.ac.uk/id/eprint/18331/ https://doi.org/10.1177/0959683614557576 https://nrl.northumbria.ac.uk/id/eprint/18331/1/263.full.pdf en eng SAGE https://nrl.northumbria.ac.uk/id/eprint/18331/1/263.full.pdf Strother, Stephanie, Salzmann, Ulrich, Roberts, Stephen J., Hodgson, Dominic, Woodward, John, Van Nieuwenhuyze, Wim, Verleyen, Elie, Vyverman, Wim and Moreton, Steven (2015) Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia. The Holocene, 25 (2). pp. 263-279. ISSN 0959-6836 cc_by CC-BY F600 Geology Article PeerReviewed 2015 ftunivnorthumb https://doi.org/10.1177/0959683614557576 2022-09-25T06:00:26Z Sub-Antarctic South Georgia is a key region for studying climate variability in the Southern Hemisphere, because of its position at the core of the Southern Hemisphere Westerly Wind belt and between the Antarctic Circumpolar Current and the Polar Frontal Zone. Here, we present a 5.8-m long high-resolution pollen record from Fan Lake on Annenkov Island dominated by local sub-polar vegetation, with Acaena and Poaceae being present throughout the last 7000 years. Palynological and sedimentological analyses revealed a warm late Holocene ‘climate optimum’ between 3790 and 2750 cal. yr BP, which was followed by a gradual transition to cool and wet conditions. This cooling was interrupted by slightly warmer environmental conditions between 1670 and 710 cal. yr BP that partly overlap with the Northern Hemisphere ‘Medieval Climate Anomaly’. Increases in non-native and long-distance pollen grains transported from South America (e.g. Nothofagus, Podocarpus) indicate that stronger Southern Hemisphere Westerly Winds over South Georgia possibly occurred during some ‘colder’ phases of the late Holocene, most notably between c. 2210 and 1670 cal. yr BP and after 710 cal. yr BP. Article in Journal/Newspaper Annenkov Island Antarc* Antarctic Northumbria University, Newcastle: Northumbria Research Link (NRL) Annenkov Island ENVELOPE(-37.079,-37.079,-54.490,-54.490) Antarctic Fan Lake ENVELOPE(-37.050,-37.050,-54.500,-54.500) The Antarctic The Holocene 25 2 263 279 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
English |
topic |
F600 Geology |
spellingShingle |
F600 Geology Strother, Stephanie Salzmann, Ulrich Roberts, Stephen J. Hodgson, Dominic Woodward, John Van Nieuwenhuyze, Wim Verleyen, Elie Vyverman, Wim Moreton, Steven Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia |
topic_facet |
F600 Geology |
description |
Sub-Antarctic South Georgia is a key region for studying climate variability in the Southern Hemisphere, because of its position at the core of the Southern Hemisphere Westerly Wind belt and between the Antarctic Circumpolar Current and the Polar Frontal Zone. Here, we present a 5.8-m long high-resolution pollen record from Fan Lake on Annenkov Island dominated by local sub-polar vegetation, with Acaena and Poaceae being present throughout the last 7000 years. Palynological and sedimentological analyses revealed a warm late Holocene ‘climate optimum’ between 3790 and 2750 cal. yr BP, which was followed by a gradual transition to cool and wet conditions. This cooling was interrupted by slightly warmer environmental conditions between 1670 and 710 cal. yr BP that partly overlap with the Northern Hemisphere ‘Medieval Climate Anomaly’. Increases in non-native and long-distance pollen grains transported from South America (e.g. Nothofagus, Podocarpus) indicate that stronger Southern Hemisphere Westerly Winds over South Georgia possibly occurred during some ‘colder’ phases of the late Holocene, most notably between c. 2210 and 1670 cal. yr BP and after 710 cal. yr BP. |
format |
Article in Journal/Newspaper |
author |
Strother, Stephanie Salzmann, Ulrich Roberts, Stephen J. Hodgson, Dominic Woodward, John Van Nieuwenhuyze, Wim Verleyen, Elie Vyverman, Wim Moreton, Steven |
author_facet |
Strother, Stephanie Salzmann, Ulrich Roberts, Stephen J. Hodgson, Dominic Woodward, John Van Nieuwenhuyze, Wim Verleyen, Elie Vyverman, Wim Moreton, Steven |
author_sort |
Strother, Stephanie |
title |
Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia |
title_short |
Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia |
title_full |
Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia |
title_fullStr |
Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia |
title_full_unstemmed |
Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia |
title_sort |
changes in holocene climate and the intensity of southern hemisphere westerly winds based on a high-resolution palynological record from sub-antarctic south georgia |
publisher |
SAGE |
publishDate |
2015 |
url |
https://nrl.northumbria.ac.uk/id/eprint/18331/ https://doi.org/10.1177/0959683614557576 https://nrl.northumbria.ac.uk/id/eprint/18331/1/263.full.pdf |
long_lat |
ENVELOPE(-37.079,-37.079,-54.490,-54.490) ENVELOPE(-37.050,-37.050,-54.500,-54.500) |
geographic |
Annenkov Island Antarctic Fan Lake The Antarctic |
geographic_facet |
Annenkov Island Antarctic Fan Lake The Antarctic |
genre |
Annenkov Island Antarc* Antarctic |
genre_facet |
Annenkov Island Antarc* Antarctic |
op_relation |
https://nrl.northumbria.ac.uk/id/eprint/18331/1/263.full.pdf Strother, Stephanie, Salzmann, Ulrich, Roberts, Stephen J., Hodgson, Dominic, Woodward, John, Van Nieuwenhuyze, Wim, Verleyen, Elie, Vyverman, Wim and Moreton, Steven (2015) Changes in Holocene climate and the intensity of Southern Hemisphere Westerly Winds based on a high-resolution palynological record from sub-Antarctic South Georgia. The Holocene, 25 (2). pp. 263-279. ISSN 0959-6836 |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1177/0959683614557576 |
container_title |
The Holocene |
container_volume |
25 |
container_issue |
2 |
container_start_page |
263 |
op_container_end_page |
279 |
_version_ |
1766003947138449408 |