Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability
The Antarctic Peninsula experienced a rapid rise in regional temperature during the second half of the 20th century, but the regional pattern of multi-centennial temperature changes and their dynamical drivers remain poorly understood. Here we use proxies of biological productivity in rare, deep mos...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/299372 2024-01-07T09:38:42+01:00 Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability Charman, Dan J. Amesbury, Matthew J. Roland, Thomas P. Royles, Jessica Hodgson, Dominic A. Convey, Peter Griffiths, Howard Faculty of Biological and Environmental Sciences Environmental Change Research Unit (ECRU) 2019-02-22T14:28:01Z 4 application/pdf http://hdl.handle.net/10138/299372 eng eng Geological Society of America 10.1130/G45347.1 This research was funded by the UK Natural Environment Research Council (NERC) Antarctic Funding Initiative (grant NE/H014896/1) and NERC Radiocarbon Facility allocation 1605.0312. Melanie Leng at the NERC Isotope Geosciences Laboratory assisted with isotope measurements. Sample collection was supported by Iain Rudkin, Ashly Fusiarski, the British Antarctic Survey, and Royal Navy ships HMS Protector and HMS Endurance. We thank Nerilie Abram and two anonymous reviewers for their comments. Charman , D J , Amesbury , M J , Roland , T P , Royles , J , Hodgson , D A , Convey , P & Griffiths , H 2018 , ' Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability ' , Geology , vol. 46 , no. 12 , pp. 1071-1074 . https://doi.org/10.1130/G45347.1 ORCID: /0000-0002-4667-003X/work/54491201 85057609578 b233652d-2f47-4e09-ae19-a79736e3acc6 http://hdl.handle.net/10138/299372 000451275100013 cc_by openAccess info:eu-repo/semantics/openAccess CLIMATE-CHANGE MOSS BANK TRENDS OCEAN ISLAND WEST 1171 Geosciences Article publishedVersion 2019 ftunivhelsihelda 2023-12-14T00:05:29Z The Antarctic Peninsula experienced a rapid rise in regional temperature during the second half of the 20th century, but the regional pattern of multi-centennial temperature changes and their dynamical drivers remain poorly understood. Here we use proxies of biological productivity in rare, deep moss banks to infer past surface air temperature changes on the Antarctic Peninsula and identify the drivers of these changes. Late Holocene temperatures are broadly consistent between the low-elevation moss bank records and a high-elevation ice core site, and we conclude that variation in the strength of the westerlies, linked to the Southern Annular Mode, is the most likely driver. Our data do not support a hypothesized persistent temperature dipole over the Antarctic Peninsula related to a strong influence of El Nino-Southern Oscillation. Rates of change in biological productivity on the peninsula over the 20th century are unusual in the context of the late Holocene, and further warming will drive rapid future increases in moss growth and microbial populations. Peer reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula ice core Ocean Island HELDA – University of Helsinki Open Repository Antarctic Antarctic Peninsula The Antarctic Geology 46 12 1071 1074 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
CLIMATE-CHANGE MOSS BANK TRENDS OCEAN ISLAND WEST 1171 Geosciences |
spellingShingle |
CLIMATE-CHANGE MOSS BANK TRENDS OCEAN ISLAND WEST 1171 Geosciences Charman, Dan J. Amesbury, Matthew J. Roland, Thomas P. Royles, Jessica Hodgson, Dominic A. Convey, Peter Griffiths, Howard Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability |
topic_facet |
CLIMATE-CHANGE MOSS BANK TRENDS OCEAN ISLAND WEST 1171 Geosciences |
description |
The Antarctic Peninsula experienced a rapid rise in regional temperature during the second half of the 20th century, but the regional pattern of multi-centennial temperature changes and their dynamical drivers remain poorly understood. Here we use proxies of biological productivity in rare, deep moss banks to infer past surface air temperature changes on the Antarctic Peninsula and identify the drivers of these changes. Late Holocene temperatures are broadly consistent between the low-elevation moss bank records and a high-elevation ice core site, and we conclude that variation in the strength of the westerlies, linked to the Southern Annular Mode, is the most likely driver. Our data do not support a hypothesized persistent temperature dipole over the Antarctic Peninsula related to a strong influence of El Nino-Southern Oscillation. Rates of change in biological productivity on the peninsula over the 20th century are unusual in the context of the late Holocene, and further warming will drive rapid future increases in moss growth and microbial populations. Peer reviewed |
author2 |
Faculty of Biological and Environmental Sciences Environmental Change Research Unit (ECRU) |
format |
Article in Journal/Newspaper |
author |
Charman, Dan J. Amesbury, Matthew J. Roland, Thomas P. Royles, Jessica Hodgson, Dominic A. Convey, Peter Griffiths, Howard |
author_facet |
Charman, Dan J. Amesbury, Matthew J. Roland, Thomas P. Royles, Jessica Hodgson, Dominic A. Convey, Peter Griffiths, Howard |
author_sort |
Charman, Dan J. |
title |
Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability |
title_short |
Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability |
title_full |
Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability |
title_fullStr |
Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability |
title_full_unstemmed |
Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability |
title_sort |
spatially coherent late holocene antarctic peninsula surface air temperature variability |
publisher |
Geological Society of America |
publishDate |
2019 |
url |
http://hdl.handle.net/10138/299372 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula ice core Ocean Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula ice core Ocean Island |
op_relation |
10.1130/G45347.1 This research was funded by the UK Natural Environment Research Council (NERC) Antarctic Funding Initiative (grant NE/H014896/1) and NERC Radiocarbon Facility allocation 1605.0312. Melanie Leng at the NERC Isotope Geosciences Laboratory assisted with isotope measurements. Sample collection was supported by Iain Rudkin, Ashly Fusiarski, the British Antarctic Survey, and Royal Navy ships HMS Protector and HMS Endurance. We thank Nerilie Abram and two anonymous reviewers for their comments. Charman , D J , Amesbury , M J , Roland , T P , Royles , J , Hodgson , D A , Convey , P & Griffiths , H 2018 , ' Spatially coherent late Holocene Antarctic Peninsula surface air temperature variability ' , Geology , vol. 46 , no. 12 , pp. 1071-1074 . https://doi.org/10.1130/G45347.1 ORCID: /0000-0002-4667-003X/work/54491201 85057609578 b233652d-2f47-4e09-ae19-a79736e3acc6 http://hdl.handle.net/10138/299372 000451275100013 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Geology |
container_volume |
46 |
container_issue |
12 |
container_start_page |
1071 |
op_container_end_page |
1074 |
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1787425074327846912 |