DOI: 10.1016/j.quascirev.2013.04.012
Scopus记录号: 2-s2.0-84879480616
论文题名: North Atlantic forcing of millennial-scale Indo-Australian monsoon dynamics during the Last Glacial period
作者: Denniston R.F. ; Wyrwoll K.-H. ; Asmerom Y. ; Polyak V.J. ; Humphreys W.F. ; Cugley J. ; Woods D. ; LaPointe Z. ; Peota J. ; Greaves E.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 72 起始页码: 159
结束页码: 168
语种: 英语
英文关键词: Indo-Australian summer monsoon
; Kimberley
; Last Glacial Maximum
; Oxygen isotope
; Stalagmite
Scopus关键词: Atmospheric temperature
; Atmospheric thermodynamics
; Isotopes
; Oxygen
; Rain
; Salinity measurement
; Sea level
; Time series
; Kimberley
; Last Glacial Maximum
; Oxygen isotopes
; Stalagmite
; Summer monsoon
; Climate change
; Dansgaard-Oeschger cycle
; Heinrich event
; interstadial
; intertropical convergence zone
; Last Glacial
; latitude
; monsoon
; rainfall
; sea level
; sea surface temperature
; stalagmite
; Younger Dryas
; Atlantic Ocean
; Atlantic Ocean (North)
; Australia
; Kimberley [Western Australia]
; Western Australia
英文摘要: Recent studies of the Last Glacial period Indo-Australian summer monsoon (IASM) have revealed links to both northern and southern hemisphere high latitude climate as well as to regional ocean conditions. Particular interest has been paid to the monsoon response to Heinrich events, with variability explained by meridional shifts in positioning of the intertropical convergence zone (ITCZ), but this model has not been adequately tested. In addition, the shorter-lived Dansgaard/Oeschger (D/O) events have not been detected (beyond D/O-1, the Bølling/Allerød) in land-based records from the Indo-Pacific, despite their prominent expression in stalagmites from southern Asia, raising questions about the sensitivity of the IASM to these events. Here we present a Southern Hemisphere stalagmite oxygen isotopic time series from Ball Gown Cave (BGC), tropical northern Australia, located on the margins of the modern austral summer ITCZ, that spans 40-31 and 27-8ka. Elevated IASM rainfall coincides with Heinrich stadials and the Younger Dryas, while decreased rainfall characterizes D/O interstadials, a response that is anti-phased with sites spanning the Indo-Pacific Warm Pool and with Chinese records of the East Asian summer monsoon. The BGC time series thus reveals a precipitation dipole consistent with a southward (northward) migration of the ITCZ during periods of high northern latitude cooling (warming) as the primary driver of millennial-scale IASM variability during the Last Glacial period. Our record indicates a strengthening of the IASM after the Younger Dryas period, likely as a result of rising sea level and sea surface temperatures, breaking the link with the high latitudes. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60604
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geology, Cornell College, Mount Vernon, IA, United States; School of Earth and Environment, University of Western Australia, Perth, WA, Australia; Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, United States; School of Animal Biology, University of Western Australia, Perth, WA, Australia; Western Australia Museum, Perth, WA, Australia; Illawarra Speleological Society, Perth, WA, Australia; Department of Environment and Conservation, Broome, WA, Australia
Recommended Citation:
Denniston R.F.,Wyrwoll K.-H.,Asmerom Y.,et al. North Atlantic forcing of millennial-scale Indo-Australian monsoon dynamics during the Last Glacial period[J]. Quaternary Science Reviews,2013-01-01,72