Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions
Temperature changes in Antarctica over the last millennium are investigated using proxy records, a set of simulations driven by natural and anthropogenic forcings and one simulation with data assimilation. Over Antarctica, a long term cooling trend in annual mean is simulated during the period 10001...
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Online Access: | https://doi.org/10.1016/j.quascirev.2012.09.003 http://ecite.utas.edu.au/80642 |
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ftunivtasecite:oai:ecite.utas.edu.au:80642 2023-05-15T14:02:30+02:00 Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions Goosse, H Braida, M Crosta, X Mairesse, A Masson-Delmotte, V Mathiot, P Neukom, R Oerter, H Philippon, G Renssen, H Stenni, B van Ommen, T Verleyen, E 2012 https://doi.org/10.1016/j.quascirev.2012.09.003 http://ecite.utas.edu.au/80642 en eng Pergamon-Elsevier Science Ltd http://dx.doi.org/10.1016/j.quascirev.2012.09.003 Goosse, H and Braida, M and Crosta, X and Mairesse, A and Masson-Delmotte, V and Mathiot, P and Neukom, R and Oerter, H and Philippon, G and Renssen, H and Stenni, B and van Ommen, T and Verleyen, E, Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions, Quaternary Science Reviews: International Multidisciplinary Review and Research Journal, 55 pp. 75-90. ISSN 0277-3791 (2012) [Refereed Article] http://ecite.utas.edu.au/80642 Earth Sciences Physical Geography and Environmental Geoscience Glaciology Refereed Article PeerReviewed 2012 ftunivtasecite https://doi.org/10.1016/j.quascirev.2012.09.003 2019-12-13T21:45:53Z Temperature changes in Antarctica over the last millennium are investigated using proxy records, a set of simulations driven by natural and anthropogenic forcings and one simulation with data assimilation. Over Antarctica, a long term cooling trend in annual mean is simulated during the period 10001850. The main contributor to this cooling trend is the volcanic forcing, astronomical forcing playing a dominant role at seasonal timescale. Since 1850, all the models produce an Antarctic warming in response to the increase in greenhouse gas concentrations. We present a composite of Antarctic temperature, calculated by averaging seven temperature records derived from isotope measurements in ice cores. This simple approach is supported by the coherency displayed between model results at these data grid points and Antarctic mean temperature. The composite shows a weak multi-centennial cooling trend during the pre-industrial period and a warming after 1850 that is broadly consistent with model results. In both data and simulations, large regional variations are superimposed on this common signal, at decadal to centennial timescales. The model results appear spatially more consistent than ice core records. We conclude that more records are needed to resolve the complex spatial distribution of Antarctic temperature variations during the last millennium. Article in Journal/Newspaper Antarc* Antarctic Antarctica ice core eCite UTAS (University of Tasmania) Antarctic Quaternary Science Reviews 55 75 90 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology Goosse, H Braida, M Crosta, X Mairesse, A Masson-Delmotte, V Mathiot, P Neukom, R Oerter, H Philippon, G Renssen, H Stenni, B van Ommen, T Verleyen, E Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
description |
Temperature changes in Antarctica over the last millennium are investigated using proxy records, a set of simulations driven by natural and anthropogenic forcings and one simulation with data assimilation. Over Antarctica, a long term cooling trend in annual mean is simulated during the period 10001850. The main contributor to this cooling trend is the volcanic forcing, astronomical forcing playing a dominant role at seasonal timescale. Since 1850, all the models produce an Antarctic warming in response to the increase in greenhouse gas concentrations. We present a composite of Antarctic temperature, calculated by averaging seven temperature records derived from isotope measurements in ice cores. This simple approach is supported by the coherency displayed between model results at these data grid points and Antarctic mean temperature. The composite shows a weak multi-centennial cooling trend during the pre-industrial period and a warming after 1850 that is broadly consistent with model results. In both data and simulations, large regional variations are superimposed on this common signal, at decadal to centennial timescales. The model results appear spatially more consistent than ice core records. We conclude that more records are needed to resolve the complex spatial distribution of Antarctic temperature variations during the last millennium. |
format |
Article in Journal/Newspaper |
author |
Goosse, H Braida, M Crosta, X Mairesse, A Masson-Delmotte, V Mathiot, P Neukom, R Oerter, H Philippon, G Renssen, H Stenni, B van Ommen, T Verleyen, E |
author_facet |
Goosse, H Braida, M Crosta, X Mairesse, A Masson-Delmotte, V Mathiot, P Neukom, R Oerter, H Philippon, G Renssen, H Stenni, B van Ommen, T Verleyen, E |
author_sort |
Goosse, H |
title |
Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions |
title_short |
Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions |
title_full |
Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions |
title_fullStr |
Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions |
title_full_unstemmed |
Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions |
title_sort |
antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions |
publisher |
Pergamon-Elsevier Science Ltd |
publishDate |
2012 |
url |
https://doi.org/10.1016/j.quascirev.2012.09.003 http://ecite.utas.edu.au/80642 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica ice core |
op_relation |
http://dx.doi.org/10.1016/j.quascirev.2012.09.003 Goosse, H and Braida, M and Crosta, X and Mairesse, A and Masson-Delmotte, V and Mathiot, P and Neukom, R and Oerter, H and Philippon, G and Renssen, H and Stenni, B and van Ommen, T and Verleyen, E, Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions, Quaternary Science Reviews: International Multidisciplinary Review and Research Journal, 55 pp. 75-90. ISSN 0277-3791 (2012) [Refereed Article] http://ecite.utas.edu.au/80642 |
op_doi |
https://doi.org/10.1016/j.quascirev.2012.09.003 |
container_title |
Quaternary Science Reviews |
container_volume |
55 |
container_start_page |
75 |
op_container_end_page |
90 |
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1766272810857005056 |