globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-013-1899-1
Scopus记录号: 2-s2.0-84906941137
论文题名:
A reconstruction of extratropical Indo-Pacific sea-level pressure patterns during the Medieval Climate Anomaly
作者: Goodwin I.D.; Browning S.; Lorrey A.M.; Mayewski P.A.; Phipps S.J.; Bertler N.A.N.; Edwards R.P.; Cohen T.J.; van Ommen T.; Curran M.; Barr C.; Stager J.C.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 43, 期:2017-05-06
起始页码: 1197
结束页码: 1219
语种: 英语
英文关键词: Extratropical ; Medieval Climate Anomaly ; Pacific South American Mode ; Paleo-sea-level pressure reconstruction ; Southern Annular Mode
英文摘要: Subtropical and extratropical proxy records of wind field, sea level pressure (SLP), temperature and hydrological anomalies from South Africa, Australia/New Zealand, Patagonian South America and Antarctica were used to reconstruct the Indo-Pacific extratropical southern hemisphere sea-level pressure anomaly (SLPa) fields for the Medieval Climate Anomaly (MCA ~700-1350 CE) and transition to the Little Ice Age (LIA 1350-1450 CE). The multivariate array of proxy data were simultaneously evaluated against global climate model output in order to identify climate state analogues that are most consistent with the majority of proxy data. The mean SLP and SLP anomaly patterns derived from these analogues illustrate the evolution of low frequency changes in the extratropics. The Indo-Pacific extratropical mean climate state was dominated by a strong tropical interaction with Antarctica emanating from: (1) the eastern Indian and south-west Pacific regions prior to 1100 CE, then, (2) the eastern Pacific evolving to the central Pacific La Niña-like pattern interacting with a +ve SAM to 1300 CE. A relatively abrupt shift to -ve SAM and the central Pacific El Niño-like pattern occurred at ~1300. A poleward (equatorward) shift in the subtropical ridge occurred during the MCA (MCA-LIA transition). The Hadley Cell expansion in the Australian and Southwest Pacific, region together with the poleward shift of the zonal westerlies is contemporaneous with previously reported Hadley Cell expansion in the North Pacific and Atlantic regions, and suggests that bipolar climate symmetry was a feature of the MCA. © 2013 Springer-Verlag Berlin Heidelberg.
资助项目: ARC, Australian Research Council
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54335
Appears in Collections:过去全球变化的重建

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作者单位: Marine Climate Risk Group and Environmental Science, Macquarie University, Sydney, NSW, 2109, Australia; National Climate Centre, National Institute of Water and Atmospheric Research, Auckland, New Zealand; Climate Change Institute, University of Maine, Orono, ME, 04469-5790, United States; Climate Change Research Centre, ARC Centre of Excellence for Climate System Science, University of New South Wales, Sydney, NSW, 2052, Australia; Joint Antarctic Research Institute, Victoria University and GNS Science, PO Box 600, Wellington, 6012, New Zealand; Desert Research Institute, Nevada System of Higher Education, Reno, NV, 89512, United States; Department of Imaging and Applied Physics, Curtin University, Perth, WA, 6845, Australia; GeoQuEST Research Centre, School of Earth and Environmental Sciences, University of Wollongong, Wollongong, NSW, 2522, Australia; Australian Antarctic Division, Kingston, TAS, 7050, Australia; Antarctic Climate and Ecosystems CRC, University of Tasmania, Hobart, TAS, Australia; Discipline of Geography, Environment and Population, University of Adelaide, North Terrace, Adelaide, SA, 5005, Australia; Natural Sciences, Paul Smith's College, Paul Smiths, NY, 12970, United States

Recommended Citation:
Goodwin I.D.,Browning S.,Lorrey A.M.,et al. A reconstruction of extratropical Indo-Pacific sea-level pressure patterns during the Medieval Climate Anomaly[J]. Climate Dynamics,2014-01-01,43(2017-05-06)
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