DOI: 10.1016/j.epsl.2017.12.048
Scopus记录号: 2-s2.0-85044287788
论文题名: Mineralogical evidence of reduced East Asian summer monsoon rainfall on the Chinese loess plateau during the early Pleistocene interglacials
作者: Meng X. ; Liu L. ; Wang X.T. ; Balsam W. ; Chen J. ; Ji J.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 486 起始页码: 61
结束页码: 69
语种: 英语
英文关键词: carbonate
; Chinese Loess Plateau
; ENSO
; loess
; monsoon rainfall
Scopus关键词: Atmospheric thermodynamics
; Carbonates
; Climate change
; Climate models
; Climatology
; Global warming
; Landforms
; Oceanography
; Sediments
; Surface waters
; Temperature
; Chinese Loess Plateau
; East Asian summer monsoon
; ENSO
; Global climate system
; loess
; Monsoon rainfall
; Sea Surface Temperature gradients
; Temperature variation
; Rain
; carbonate
; climate modeling
; El Nino-Southern Oscillation
; interglacial
; mineralogy
; monsoon
; paleoclimate
; Pleistocene
; rainfall
; sea surface temperature
; summer
; China
; Loess Plateau
; Pacific Ocean
; Pacific Ocean (Equatorial)
英文摘要: The East Asian summer monsoon (EASM) is an important component of the global climate system. A better understanding of EASM rainfall variability in the past can help constrain climate models and better predict the response of EASM to ongoing global warming. The warm early Pleistocene, a potential analog of future climate, is an important period to study EASM dynamics. However, existing monsoon proxies for reconstruction of EASM rainfall during the early Pleistocene fail to disentangle monsoon rainfall changes from temperature variations, complicating the comparison of these monsoon records with climate models. Here, we present three 2.6 million-year-long EASM rainfall records from the Chinese Loess Plateau (CLP) based on carbonate dissolution, a novel proxy for rainfall intensity. These records show that the interglacial rainfall on the CLP was lower during the early Pleistocene and then gradually increased with global cooling during the middle and late Pleistocene. These results are contrary to previous suggestions that a warmer climate leads to higher monsoon rainfall on tectonic timescales. We propose that the lower interglacial EASM rainfall during the early Pleistocene was caused by reduced sea surface temperature gradients across the equatorial Pacific, providing a testable hypothesis for climate models. © 2018 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110030
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Ministry of Education Key Laboratory of Surficial Geochemistry, School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210023, China; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States; Department of Earth Sciences, Dartmouth College, Hanover, NH, United States
Recommended Citation:
Meng X.,Liu L.,Wang X.T.,et al. Mineralogical evidence of reduced East Asian summer monsoon rainfall on the Chinese loess plateau during the early Pleistocene interglacials[J]. Earth and Planetary Science Letters,2018-01-01,486