DOI: 10.1016/j.quascirev.2013.11.001
Scopus记录号: 2-s2.0-84898786010
论文题名: Molecular records of continental air temperature and monsoon precipitation variability in East Asia spanning the past 130,000 years
作者: Peterse F. ; Martínez-García A. ; Zhou B. ; Beets C.J. ; Prins M.A. ; Zheng H. ; Eglinton T.I.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 83 起始页码: 76
结束页码: 82
语种: 英语
英文关键词: East Asian monsoon
; GDGT
; Loess
; Organic paleothermometry
Scopus关键词: Atmospheric thermodynamics
; Glacial geology
; Incident solar radiation
; Isotopes
; Precipitation (meteorology)
; Sediments
; Spectrum analysis
; Wind
; Cross-spectral analysis
; East Asian monsoon
; East Asian summer monsoon
; GDGT
; Loess
; Monsoon precipitation
; Organic paleothermometry
; Precipitation intensity
; Atmospheric temperature
; air temperature
; glaciation
; greenhouse gas
; ice sheet
; loess
; monsoon
; oxygen isotope
; paleoclimate
; paleosol
; paleotemperature
; Pleistocene
; precipitation (climatology)
; stalagmite
; China
; Loess Plateau
; Bacteria (microorganisms)
英文摘要: Our current understanding of past changes in East Asian summer monsoon (EASM) precipitation intensity derives from several loess-paleosol sequences and oxygen isotope (δ18O) records of well-dated stalagmites. Although temperature is generally presumed to have had minimal impact on EASM records, past air temperature dynamics over East Asia are, so far, relatively poorly understood, mainly due to the lack of tools to reconstruct continental paleotemperatures. Here we report a high-resolution record of East Asian air temperature over the past 130,000 years, based on soil bacterial lipid signatures preserved in a loess-paleosol sequence from the Mangshan loess plateau in China. We find that maximum local insolation is the main driver of air temperature, although greenhouse gas concentrations and southern hemisphere climate may influence temperature at times when insolation is weak, causing a decoupling with EASM precipitation intensity. Direct comparison of our temperature record with precipitation-induced changes in past soil pH, derived from the same suite of lipids confirms this decoupling. Subsequent cross-spectral analysis of the two molecular proxy records reveals that variations in monsoon precipitation consistently lag those in air temperature throughout the whole record at the dominant precession band. The length of this lag is variable however, and increases as glaciation develops. This observation is consistent with an increasing influence of northern hemisphere ice sheets on the modulation of EASM response to insolation forcing during ice ages. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60425
Appears in Collections: 过去全球变化的重建
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作者单位: ETH Zürich, Geological Institute, Sonneggstrasse 5, 8092 Zürich, Switzerland; Nanjing University, School of Earth Sciences and Engineering, Nanjing 210093, China; VU University Amsterdam, Faculty of Earth and Life Sciences, De Boelelaan 1085, 1081 HV Amsterdam, Netherlands; Nanjing Normal University, School of Geography Science, Nanjing 210046, China
Recommended Citation:
Peterse F.,Martínez-García A.,Zhou B.,et al. Molecular records of continental air temperature and monsoon precipitation variability in East Asia spanning the past 130,000 years[J]. Quaternary Science Reviews,2014-01-01,83