DOI: 10.1016/j.quascirev.2014.05.006
Scopus记录号: 2-s2.0-84901788487
论文题名: Abrupt variations of Indian and East Asian summer monsoons during the last deglacial stadial and interstadial
作者: Hong B. ; Hong Y. ; Uchida M. ; Shibata Y. ; Cai C. ; Peng H. ; Zhu Y. ; Wang Y. ; Yuan L.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 97 起始页码: 58
结束页码: 70
语种: 英语
英文关键词: East Asian summer monsoon
; ENSO
; GHGs
; Indian summer monsoon
; Last deglaciation
; Westerly
Scopus关键词: Arid regions
; Climatology
; Global warming
; Greenhouse gases
; Rain
; Stream flow
; East Asian summer monsoon
; ENSO
; GHGs
; Indian summer monsoon
; Last deglaciation
; Westerly
; Atmospheric thermodynamics
; arid environment
; concentration (composition)
; El Nino-Southern Oscillation
; global warming
; greenhouse gas
; La Nina
; last deglaciation
; latitude
; monsoon
; paleoclimate
; proxy climate record
; China
; Pacific Ocean
; Pacific Ocean (Equatorial)
英文摘要: The phase relationship between the Indian summer monsoon (ISM) and the East Asian summer monsoon (EASM) during the last deglaciation remains controversial. Here, we reconstruct a 15,000-year plant cellulose δ13C proxy record for the ISM from the Yuexi peat bog in southwestern China. The record shows that the ISM abruptly decreases during the Younger Dryas (YD) stadial and abruptly increases during the Bølling-Allerød (BA) interstadial. A comparison of the Yuexi record with other related proxy climate records reveals two types of phenomena. First, the strengths of the two Asian monsoons are inversely related during the YD stadial, i.e., the ISM strength decreases and the EASM increases. During this period, the southern Chinese mainland consisted of a wide arid zone while the northern Chinese mainland was much wetter. The arid zone in southern China resulted from two different types of monsoon processes: the abnormal northward extension of the EASM rain belt, leading to less rainfall in southeast China, or an illusion that the EASM weakened. The other process is a real weakening of the ISM. Second, during the BA interstadial, the strengths of both the ISM and EASM clearly increased. However, the maximum strengths appear to have occurred in the Allerød period. During this period, the entire Chinese mainland, both northern and southern, experienced wet conditions. The abnormal climate pattern of wet in the north and dry in the south during the YD stadial occurs because of the combined effects of the strengthened EASM, intensified westerlies, and weakened ISM, which could be attributed to the response to the abrupt cooling in the high northern latitudes and to the El Niño-like activity in the equatorial Pacific. The widespread wet climate during the BA interstadial may be related to an abrupt increase in the greenhouse gases (GHGs) concentrations in the atmosphere and to the La Niña-like activity in the equatorial Pacific. These results contribute to a better understanding of the response of the Asian monsoon to global changes and present a geo-historical scenario for understanding the East Asian hydrological variations in the current global warming phase. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60224
Appears in Collections: 过去全球变化的重建
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作者单位: State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 46 Guanshui Road, Guiyang, Guizhou 550002, China; Center for Environmental Measurement and Analysis, National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki 305-0053, Japan
Recommended Citation:
Hong B.,Hong Y.,Uchida M.,et al. Abrupt variations of Indian and East Asian summer monsoons during the last deglacial stadial and interstadial[J]. Quaternary Science Reviews,2014-01-01,97