Climatic records over the past 30 ka from temperate Australia - a synthesis from the Oz-INTIMATE workgroup
| Type | Article | ||||||||
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| Date | 2013-08 | ||||||||
| Language | English | ||||||||
| Author(s) | Petherick L.1, 2, Bostock H.3, Cohen T. J.4, Fitzsimmons K.5, Tibby J.6, Fletcher M. -S.7, 8, Moss P.2, Reeves J.9, Mooney S.10, Barrows T.11, Kemp J.12, Jansen J.13, Nanson G.4, Dosseto A.4 | ||||||||
| Affiliation(s) | 1 : Queensland Univ Technol, Sch Earth Environm & Biol Sci, Gardens Point, Qld 4000, Australia. 2 : Univ Queensland, Sch Geog Planning & Environm Management, St Lucia, Qld 4072, Australia. 3 : Natl Inst Water & Atmosphere, Wellington, New Zealand. 4 : Univ Wollongong, SEES, Wollongong, NSW 2522, Australia. 5 : Max Planck Inst Evolutionary Anthropol, Dept Human Evolut, D-04103 Leipzig, Germany. 6 : Univ Adelaide, Sch Geog Environm & Populat, Adelaide, SA 5005, Australia. 7 : Australian Natl Univ, Canberra, ACT 0200, Australia. 8 : Univ Chile, Inst Ecol & Biodivers, Santiago, Chile. 9 : Univ Ballarat, Sch Sci Informat Technol & Engn, Ballarat, Vic 3353, Australia. 10 : Univ New S Wales, Sch Biol Earth & Environm Sci, Sydney, NSW 2052, Australia. 11 : Univ Exeter, Coll Life & Environm Sci, Exeter EX4 4RJ, Devon, England. 12 : Northumbria Univ, Sch Built & Nat Environm, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England. 13 : Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden. |
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| Source | Quaternary Science Reviews (0277-3791) (Pergamon-elsevier Science Ltd), 2013-08 , Vol. 74 , P. 58-77 | ||||||||
| DOI | 10.1016/j.quascirev.2012.12.012 | ||||||||
| WOS© Times Cited | 104 | ||||||||
| Note | Linking Southern Hemisphere records and past circulation patterns: the AUS-INTIMATE project | ||||||||
| Keyword(s) | Temperate, Australia, Palaeoenvironmental variability, OZ-INTIMATE, Review | ||||||||
| Abstract | 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 (similar to 30-22 ka) and the Last Glacial Maximum (similar to 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 (similar to 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 similar to 12 ka, presumably in response to increasing temperature, while hydrological records reveal spatially heterogeneous hydro-climatic trends. Patterns after similar to 6 ka suggest higher frequency climatic variability that possibly reflects the onset of large scale climate variability caused by the El Nino/Southern Oscillation. | ||||||||
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