Mechanisms of holocene palaeoenvironmental change in the Antarctic Peninsula region.
The Antarctic Peninsula is one of the three fastest warming regions on Earth. Here we review Holocene proxy records of marine and terrestrial palaeoclimate in the region, and discuss possible forcing mechanisms underlying past change, with a specific focus on past warm periods. Our aim is to critica...
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Online Access: | http://dro.dur.ac.uk/6046/ http://dro.dur.ac.uk/6046/1/6046.pdf https://doi.org/10.1177/0959683608096603 |
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:6046 2023-05-15T14:04:18+02:00 Mechanisms of holocene palaeoenvironmental change in the Antarctic Peninsula region. Bentley, M. J. Hodgson, D. A. Smith, J. A. Ó Cofaigh, C. Domack, E. W. Larter, R. D. Roberts, S. J. Brachfeld, S. Leventer, A. Hjort, C. Hillenbrand, C-D. Evans, J. 2009-02-01 application/pdf http://dro.dur.ac.uk/6046/ http://dro.dur.ac.uk/6046/1/6046.pdf https://doi.org/10.1177/0959683608096603 unknown Sage dro:6046 issn:0959-6836 issn: 1477-0911 doi:10.1177/0959683608096603 http://dro.dur.ac.uk/6046/ http://dx.doi.org/10.1177/0959683608096603 http://dro.dur.ac.uk/6046/1/6046.pdf The final definitive version of this article has been published in the Journal The Holocene, 19/1, 2009 © SAGE Publications Ltd by SAGE Publications Ltd at the The Holocene page: http://hol.sagepub.com/ on SAGE Journals Online: http://online.sagepub.com/ The Holocene, 2009, Vol.19(1), pp.51-69 [Peer Reviewed Journal] Antarctic Peninsula Southern Ocean Palaeoclimate Southern Westerlies ENSO Climate models Circumpolar Deep Water Holocene Article PeerReviewed 2009 ftunivdurham https://doi.org/10.1177/0959683608096603 2020-05-28T22:27:28Z The Antarctic Peninsula is one of the three fastest warming regions on Earth. Here we review Holocene proxy records of marine and terrestrial palaeoclimate in the region, and discuss possible forcing mechanisms underlying past change, with a specific focus on past warm periods. Our aim is to critically evaluate the mechanisms by which palaeoclimate changes might have occurred, in order to provide a longer-term context for assessing the drivers of recent warming. Two warm events are well recorded in the Holocene palaeoclimate record, namely the early Holocene warm period, and the `Mid Holocene Hypsithermal' (MHH), whereas there are fewer proxy data for the `Mediaeval Warm Period' (MWP) and the `Recent Rapid Regional' (RRR) warming. We show that the early Holocene warm period and MHH might be explained by relatively abrupt shifts in position of the Southern Westerlies, superimposed on slower solar insolation changes. A key finding of our synthesis is that the marine and terrestrial records in the AP appear to show markedly different behaviour during the MHH. This might be partly explained by contrasts in the seasonal insolation forcing between these records. Circumpolar Deep Water (CDW) has been implicated in several of the prominent changes through the Holocene but there are still differences in interpretation of the proxy record that make its influence difficult to assess. Further work is required to investigate contrasts between marine and terrestrial proxy records, east—west contrasts in palaeoclimate, the history of CDW, to retrieve a long onshore high resolution record of the Holocene, and determine the role of sea ice in driving or modulating palaeoclimate change, along with further efforts to study the proxy record of the RRR and the MWP. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean Durham University: Durham Research Online Antarctic Antarctic Peninsula Southern Ocean The Antarctic The Holocene 19 1 51 69 |
institution |
Open Polar |
collection |
Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
topic |
Antarctic Peninsula Southern Ocean Palaeoclimate Southern Westerlies ENSO Climate models Circumpolar Deep Water Holocene |
spellingShingle |
Antarctic Peninsula Southern Ocean Palaeoclimate Southern Westerlies ENSO Climate models Circumpolar Deep Water Holocene Bentley, M. J. Hodgson, D. A. Smith, J. A. Ó Cofaigh, C. Domack, E. W. Larter, R. D. Roberts, S. J. Brachfeld, S. Leventer, A. Hjort, C. Hillenbrand, C-D. Evans, J. Mechanisms of holocene palaeoenvironmental change in the Antarctic Peninsula region. |
topic_facet |
Antarctic Peninsula Southern Ocean Palaeoclimate Southern Westerlies ENSO Climate models Circumpolar Deep Water Holocene |
description |
The Antarctic Peninsula is one of the three fastest warming regions on Earth. Here we review Holocene proxy records of marine and terrestrial palaeoclimate in the region, and discuss possible forcing mechanisms underlying past change, with a specific focus on past warm periods. Our aim is to critically evaluate the mechanisms by which palaeoclimate changes might have occurred, in order to provide a longer-term context for assessing the drivers of recent warming. Two warm events are well recorded in the Holocene palaeoclimate record, namely the early Holocene warm period, and the `Mid Holocene Hypsithermal' (MHH), whereas there are fewer proxy data for the `Mediaeval Warm Period' (MWP) and the `Recent Rapid Regional' (RRR) warming. We show that the early Holocene warm period and MHH might be explained by relatively abrupt shifts in position of the Southern Westerlies, superimposed on slower solar insolation changes. A key finding of our synthesis is that the marine and terrestrial records in the AP appear to show markedly different behaviour during the MHH. This might be partly explained by contrasts in the seasonal insolation forcing between these records. Circumpolar Deep Water (CDW) has been implicated in several of the prominent changes through the Holocene but there are still differences in interpretation of the proxy record that make its influence difficult to assess. Further work is required to investigate contrasts between marine and terrestrial proxy records, east—west contrasts in palaeoclimate, the history of CDW, to retrieve a long onshore high resolution record of the Holocene, and determine the role of sea ice in driving or modulating palaeoclimate change, along with further efforts to study the proxy record of the RRR and the MWP. |
format |
Article in Journal/Newspaper |
author |
Bentley, M. J. Hodgson, D. A. Smith, J. A. Ó Cofaigh, C. Domack, E. W. Larter, R. D. Roberts, S. J. Brachfeld, S. Leventer, A. Hjort, C. Hillenbrand, C-D. Evans, J. |
author_facet |
Bentley, M. J. Hodgson, D. A. Smith, J. A. Ó Cofaigh, C. Domack, E. W. Larter, R. D. Roberts, S. J. Brachfeld, S. Leventer, A. Hjort, C. Hillenbrand, C-D. Evans, J. |
author_sort |
Bentley, M. J. |
title |
Mechanisms of holocene palaeoenvironmental change in the Antarctic Peninsula region. |
title_short |
Mechanisms of holocene palaeoenvironmental change in the Antarctic Peninsula region. |
title_full |
Mechanisms of holocene palaeoenvironmental change in the Antarctic Peninsula region. |
title_fullStr |
Mechanisms of holocene palaeoenvironmental change in the Antarctic Peninsula region. |
title_full_unstemmed |
Mechanisms of holocene palaeoenvironmental change in the Antarctic Peninsula region. |
title_sort |
mechanisms of holocene palaeoenvironmental change in the antarctic peninsula region. |
publisher |
Sage |
publishDate |
2009 |
url |
http://dro.dur.ac.uk/6046/ http://dro.dur.ac.uk/6046/1/6046.pdf https://doi.org/10.1177/0959683608096603 |
geographic |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean |
op_source |
The Holocene, 2009, Vol.19(1), pp.51-69 [Peer Reviewed Journal] |
op_relation |
dro:6046 issn:0959-6836 issn: 1477-0911 doi:10.1177/0959683608096603 http://dro.dur.ac.uk/6046/ http://dx.doi.org/10.1177/0959683608096603 http://dro.dur.ac.uk/6046/1/6046.pdf |
op_rights |
The final definitive version of this article has been published in the Journal The Holocene, 19/1, 2009 © SAGE Publications Ltd by SAGE Publications Ltd at the The Holocene page: http://hol.sagepub.com/ on SAGE Journals Online: http://online.sagepub.com/ |
op_doi |
https://doi.org/10.1177/0959683608096603 |
container_title |
The Holocene |
container_volume |
19 |
container_issue |
1 |
container_start_page |
51 |
op_container_end_page |
69 |
_version_ |
1766275328744882176 |