Climatic records over the past 30 ka from temperate Australia – a synthesis from the Oz-INTIMATE workgroup
Temperate Australia sits between the heat engine of the tropics and the cold Southern Ocean, encompassing a range of rainfall regimes and falling under the influence of different climatic drivers. Despite this heterogeneity, broad-scale trends in climatic and environmental change are evident over th...
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ftgriffithuniv:oai:research-repository.griffith.edu.au:10072/53793 2024-01-07T09:40:05+01:00 Climatic records over the past 30 ka from temperate Australia – a synthesis from the Oz-INTIMATE workgroup Petherick, L Bostock, H Cohen, TJ Fitzsimmons, K Tibby, J Fletcher, M-S Moss, P Reeves, J Mooney, S Barrows, T Kemp, J Jansen, J Nanson, G Dosseto, A 2013 application/pdf http://hdl.handle.net/10072/53793 https://doi.org/10.1016/j.quascirev.2012.12.012 English eng eng Pergamon Press Quaternary Science Reviews http://hdl.handle.net/10072/53793 0277-3791 doi:10.1016/j.quascirev.2012.12.012 © 2013 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version. open access Earth sciences Quaternary environments History heritage and archaeology Journal article 2013 ftgriffithuniv https://doi.org/10.1016/j.quascirev.2012.12.012 2023-12-11T23:25:36Z Temperate Australia sits between the heat engine of the tropics and the cold Southern Ocean, encompassing a range of rainfall regimes and falling under the influence of different climatic drivers. Despite this heterogeneity, broad-scale trends in climatic and environmental change are evident over the past 30 ka. During the early glacial period (~30-22 ka) and the Last Glacial Maximum (~22-18 ka), climate was relatively cool across the entire temperate zone and there was an expansion of grasslands and increased fluvial activity in regionally important Murray-Darling Basin. The temperate region at this time appears to be dominated by expanded sea ice in the Southern Ocean forcing a northerly shift in the position of the oceanic fronts and a concomitant influx of cold water along the southeast (including Tasmania) and southwest Australian coasts. The deglacial period (~18-12 ka) was characterised by glacial recession and eventual disappearance resulting from an increase in temperature deduced from terrestrial records, while there is some evidence for climatic reversals (e.g. the Antarctic Cold Reversal) in high resolution marine sediment cores through this period. The high spatial density of Holocene terrestrial records reveals an overall expansion of sclerophyll woodland and rainforest taxa across the temperate region after ~12 ka, presumably in response to increasing temperature, while hydrological records reveal spatially heterogeneous hydro-climatic trends. Patterns after ~6 ka suggest higher frequency climatic variability that possibly reflects the onset of large scale climate variability caused by the El Nino/Southern Oscillation. Full Text Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean Griffith University: Griffith Research Online Antarctic Southern Ocean The Antarctic Quaternary Science Reviews 74 58 77 |
institution |
Open Polar |
collection |
Griffith University: Griffith Research Online |
op_collection_id |
ftgriffithuniv |
language |
English |
topic |
Earth sciences Quaternary environments History heritage and archaeology |
spellingShingle |
Earth sciences Quaternary environments History heritage and archaeology Petherick, L Bostock, H Cohen, TJ Fitzsimmons, K Tibby, J Fletcher, M-S Moss, P Reeves, J Mooney, S Barrows, T Kemp, J Jansen, J Nanson, G Dosseto, A Climatic records over the past 30 ka from temperate Australia – a synthesis from the Oz-INTIMATE workgroup |
topic_facet |
Earth sciences Quaternary environments History heritage and archaeology |
description |
Temperate Australia sits between the heat engine of the tropics and the cold Southern Ocean, encompassing a range of rainfall regimes and falling under the influence of different climatic drivers. Despite this heterogeneity, broad-scale trends in climatic and environmental change are evident over the past 30 ka. During the early glacial period (~30-22 ka) and the Last Glacial Maximum (~22-18 ka), climate was relatively cool across the entire temperate zone and there was an expansion of grasslands and increased fluvial activity in regionally important Murray-Darling Basin. The temperate region at this time appears to be dominated by expanded sea ice in the Southern Ocean forcing a northerly shift in the position of the oceanic fronts and a concomitant influx of cold water along the southeast (including Tasmania) and southwest Australian coasts. The deglacial period (~18-12 ka) was characterised by glacial recession and eventual disappearance resulting from an increase in temperature deduced from terrestrial records, while there is some evidence for climatic reversals (e.g. the Antarctic Cold Reversal) in high resolution marine sediment cores through this period. The high spatial density of Holocene terrestrial records reveals an overall expansion of sclerophyll woodland and rainforest taxa across the temperate region after ~12 ka, presumably in response to increasing temperature, while hydrological records reveal spatially heterogeneous hydro-climatic trends. Patterns after ~6 ka suggest higher frequency climatic variability that possibly reflects the onset of large scale climate variability caused by the El Nino/Southern Oscillation. Full Text |
format |
Article in Journal/Newspaper |
author |
Petherick, L Bostock, H Cohen, TJ Fitzsimmons, K Tibby, J Fletcher, M-S Moss, P Reeves, J Mooney, S Barrows, T Kemp, J Jansen, J Nanson, G Dosseto, A |
author_facet |
Petherick, L Bostock, H Cohen, TJ Fitzsimmons, K Tibby, J Fletcher, M-S Moss, P Reeves, J Mooney, S Barrows, T Kemp, J Jansen, J Nanson, G Dosseto, A |
author_sort |
Petherick, L |
title |
Climatic records over the past 30 ka from temperate Australia – a synthesis from the Oz-INTIMATE workgroup |
title_short |
Climatic records over the past 30 ka from temperate Australia – a synthesis from the Oz-INTIMATE workgroup |
title_full |
Climatic records over the past 30 ka from temperate Australia – a synthesis from the Oz-INTIMATE workgroup |
title_fullStr |
Climatic records over the past 30 ka from temperate Australia – a synthesis from the Oz-INTIMATE workgroup |
title_full_unstemmed |
Climatic records over the past 30 ka from temperate Australia – a synthesis from the Oz-INTIMATE workgroup |
title_sort |
climatic records over the past 30 ka from temperate australia – a synthesis from the oz-intimate workgroup |
publisher |
Pergamon Press |
publishDate |
2013 |
url |
http://hdl.handle.net/10072/53793 https://doi.org/10.1016/j.quascirev.2012.12.012 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_relation |
Quaternary Science Reviews http://hdl.handle.net/10072/53793 0277-3791 doi:10.1016/j.quascirev.2012.12.012 |
op_rights |
© 2013 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version. open access |
op_doi |
https://doi.org/10.1016/j.quascirev.2012.12.012 |
container_title |
Quaternary Science Reviews |
container_volume |
74 |
container_start_page |
58 |
op_container_end_page |
77 |
_version_ |
1787430496296239104 |