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Transient simulation of the Tibetan Plateau modulated distinctorbital-scale precipitation variation in East and South Asia
Li,XZ(Li,Xinzhou)1,2; Liu,XD(Liu,Xiaodong)1,2; Zhao,HL(Zhao,Hongli)1; Li,Xinzhou
2017-08-04
Source PublicationPalaeogeography, Palaeoclimatology, Palaeoecology
Volume485Issue:2017Pages:899-905
Subtype期刊论文
AbstractThe insolation change caused by the Earth's orbital forcing is known to play an important role in regulating variations of the Asian monsoon at various time scales. Geological records and numerical simulation revealed that the climate change in the Asian monsoon region was in-phase or out-of-phase with the boreal summer insolation at the orbital scale. Using the Community Climate System model version 3 and the orbital acceleration technique, we conducted two long-term transient simulations with and without the Tibetan Plateau (TP) orography (TP1 and TP0 experiments). The main objective of this study was to examine the influence of the TP uplift on the orbital-scale precipitation in East and South Asia, and the anti-phase relationship between southern and northern East Asia (SEA and NEA), during the past 150 kyr. The results further confirm that the uplift of the TP significantly affects the Asian atmospheric circulation and precipitation, and is an amplifier of the Asian summer monsoon at the precessional scale. In general, the presence of the TP causes the rain belt and atmospheric circulation front to shift northward. In particular, we found that the anti-phase relationship of precipitation between NEA and SEA at the precessional band is also controlled by the uplift of the TP. Simulations in TP1 and TP0 experiments show that the inverse variations in atmospheric circulation, including the 850 hPa wind field and vertical pressure velocity caused by the uplift of the TP, can directly lead to the out-of-phase JJA precipitation at the precessional scale between NEA and SEA. Future research to collect various climatic proxies with high spatial and temporal resolutions, at least since the Cenozoic, is required to support the simulation results of this study.
KeywordTransient Simulation Tibetan Plateau Uplift Inverse Phase Asian Monsoon Orbital-scale
DOI10.1016/j.palaeo.2017.08.005
Indexed BySCI
Project Number2016YFA0601904 ; 41472162 ; 41690115 ; 41290255
Language英语
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5627
Collection古环境研究室
Corresponding AuthorLi,Xinzhou
Affiliation1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
2.CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China
Recommended Citation
GB/T 7714
Li,XZ,Liu,XD,Zhao,HL,et al. Transient simulation of the Tibetan Plateau modulated distinctorbital-scale precipitation variation in East and South Asia[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017,485(2017):899-905.
APA Li,XZ,Liu,XD,Zhao,HL,&Li,Xinzhou.(2017).Transient simulation of the Tibetan Plateau modulated distinctorbital-scale precipitation variation in East and South Asia.Palaeogeography, Palaeoclimatology, Palaeoecology,485(2017),899-905.
MLA Li,XZ,et al."Transient simulation of the Tibetan Plateau modulated distinctorbital-scale precipitation variation in East and South Asia".Palaeogeography, Palaeoclimatology, Palaeoecology 485.2017(2017):899-905.
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