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 1000-...
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ftawi:oai:epic.awi.de:31071 2024-09-09T19:02:20+00:00 Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions Goosse, Hueghes Braida, Martina Crosta, Xavier Mairesse, A. Masson-Delmotte, Valerie Mathiot, P. Neukom, R. Oerter, Hans Philippon, G. Renssen, Hans Stenni, Barbara Van Ommen, Tas Verleyen, E. 2012 https://epic.awi.de/id/eprint/31071/ https://hdl.handle.net/10013/epic.40594 unknown Elsevier 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. and Verleyen, E. (2012) Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions , Quaternary Science Reviews, 55 , pp. 75-90 . doi:10.1016/j.quascirev.2012.09.003 <https://doi.org/10.1016/j.quascirev.2012.09.003> , hdl:10013/epic.40594 EPIC3Quaternary Science Reviews, Elsevier, 55, pp. 75-90 Article isiRev 2012 ftawi https://doi.org/10.1016/j.quascirev.2012.09.003 2024-06-24T04:05:07Z 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 1000-1850. 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Quaternary Science Reviews 55 75 90 |
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collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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 1000-1850. 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, Hueghes Braida, Martina Crosta, Xavier Mairesse, A. Masson-Delmotte, Valerie Mathiot, P. Neukom, R. Oerter, Hans Philippon, G. Renssen, Hans Stenni, Barbara Van Ommen, Tas Verleyen, E. |
spellingShingle |
Goosse, Hueghes Braida, Martina Crosta, Xavier Mairesse, A. Masson-Delmotte, Valerie Mathiot, P. Neukom, R. Oerter, Hans Philippon, G. Renssen, Hans Stenni, Barbara Van Ommen, Tas Verleyen, E. Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions |
author_facet |
Goosse, Hueghes Braida, Martina Crosta, Xavier Mairesse, A. Masson-Delmotte, Valerie Mathiot, P. Neukom, R. Oerter, Hans Philippon, G. Renssen, Hans Stenni, Barbara Van Ommen, Tas Verleyen, E. |
author_sort |
Goosse, Hueghes |
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 |
Elsevier |
publishDate |
2012 |
url |
https://epic.awi.de/id/eprint/31071/ https://hdl.handle.net/10013/epic.40594 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica ice core |
genre_facet |
Antarc* Antarctic Antarctica ice core |
op_source |
EPIC3Quaternary Science Reviews, Elsevier, 55, pp. 75-90 |
op_relation |
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. and Verleyen, E. (2012) Antarctic temperature changes during the last millennium: evaluation of simulations and reconstructions , Quaternary Science Reviews, 55 , pp. 75-90 . doi:10.1016/j.quascirev.2012.09.003 <https://doi.org/10.1016/j.quascirev.2012.09.003> , hdl:10013/epic.40594 |
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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1809816479886999552 |