DOI: 10.1007/s00382-012-1655-y
Scopus记录号: 2-s2.0-84879507402
论文题名: Strong interannual variation of the Indian summer monsoon in the Late Miocene
作者: Tang H. ; Eronen J.T. ; Micheels A. ; Ahrens B.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2013
卷: 41, 期: 1 起始页码: 135
结束页码: 153
语种: 英语
英文关键词: AOGCM
; ENSO
; Indian summer monsoon
; Interannual variability
; Late Miocene
; Regional climate model
英文摘要: The modern Asian monsoon system exhibits strong interannual variation, which has profound environmental and economical impacts. It has been well-documented that the mean Asian monsoon state underwent significant changes in the Late Miocene (11-5 Ma ago). But how the interannual variability of the monsoon climate evolved during this period is still largely unknown. In this study, a long-term simulation of the Late Miocene with a fully coupled atmosphere-ocean general circulation model (ECHAM5/MPI-OM) at T31L19 resolution is used to explore the interannual variation of the Indian summer monsoon (ISM) in the Late Miocene. The regional climate model COSMO-CLM with a higher spatial resolution (~1° × 1°) is further employed to better characterize the spatial patterns of these variations. Our results show that although the mean ISM circulation is weaker in the Late Miocene runs, its interannual variation is as strong as or even stronger than at present and the dominant periods (~2.6-2.7 years) are shorter than at present (~3.4-8.4 years). It is noticed that while the extratropical influence on the ISM variability is weaker-than-present, a persistent El Niño-Southern Oscillation with stronger-than-present interannual variability is observed in our Late Miocene run. This may have maintained a strong interannual variation of the ISM with a shorter period in the Late Miocene. Our findings do not only improve our understanding of the Asian monsoon evolution in the Late Miocene, but also shed light on the future changes in the interannual variability of the ISM. © 2013 Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54883
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geosciences and Geography, University of Helsinki, P.O. Box 64, 00014 Helsinki, Finland; Biodiversity and Climate Research Centre (LOEWE BiK-F), Senckenberganlage 25, 60325 Frankfurt am Main, Germany; Senckenberg Research Institute and Nature Museum, Senckenberganlage 25, 60325 Frankfurt am Main, Germany; Institute for Atmospheric and Environmental Sciences, Goethe University, Altenhoeferallee 1, 60438 Frankfurt am Main, Germany
Recommended Citation:
Tang H.,Eronen J.T.,Micheels A.,et al. Strong interannual variation of the Indian summer monsoon in the Late Miocene[J]. Climate Dynamics,2013-01-01,41(1)