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Modeling the effects of global cooling and the Tethyan Seaway closure on North African and South Asian climates during the Middle Miocene Climate Transition

文献类型：期刊论文

作者Zhang, Jian4; Hu, Yongyun4; Zhu, Chenguang3; Flogel, Sascha2; Fang, Xiaomin5,6; Sun, Jimin1,5
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2023-06-01
卷号619页码:12
ISSN号0031-0182
关键词South Asian monsoon Sahara desert Middle Miocene Climate Optimum Paleoclimate modeling
DOI10.1016/j.palaeo.2023.111541
英文摘要The Middle Miocene was a period of prominent climatic change, marked by the Mid-Miocene Climatic Optimum (MMCO) and the subsequent global cooling due to a decline of the atmospheric CO2 concentrations (pCO2). In addition to this, the closure of the Tethyan Seaway driven by the Arab-Eurasia collision also had an important effect on the paleoclimatic changes during this period. In this study, we use the Community Earth System Model 1.2.2 (CESM 1.2.2) to simulate the effects of global cooling (i.e. pCO2 decline) and the closure of the Tethyan Seaway on the North African and South Asian climates. Our results show that the global cooling led to a pre-cipitation decrease over both North Africa and South Asia, whereas the closure of the Tethyan Seaway resulted in a precipitation decrease over North Africa but an increase over South Asia. The opposite effects over North Africa and South Asia are due to an increased moisture transport from North Africa to South Asia induced by stronger summer atmospheric circulation when the Tethyan Seaway is closed. We further show that the reconstructed records of drying conditions over North Africa during the warming period from the late Early Miocene to the early Middle Miocene from previous studies can be partly explained by the narrowing of the Tethyan Seaway and its climatic continuing deterioration due to the subsequent final closure and global cooling. Both are precursory conditions for the formation of the Sahara desert. The stronger South Asian monsoon during the Middle Miocene transient cooling period found in previous studies can be partially attributed to the final closure of the Tethyan Seaway.
WOS关键词GREENHOUSE-GAS CONCENTRATIONS ; ISOTOPIC EVIDENCE ; MONSOON ; EVOLUTION ; NEOGENE ; UPLIFT ; ARIDIFICATION ; EXTENSIONS ; FORELAND ; SYSTEM
资助项目National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[42002129] ; National Natural Science Foundation of China[41790450] ; National Natural Science Foundation of China[42105048] ; National Natural Science Foundation of China[41877298] ; Second Tibetan Plateau Scientific Expedition and Research program[2019QZKK0707] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20070201] ; ARCHES project from the Helmholtz Association
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
出版者ELSEVIER
WOS记录号WOS:001042693200001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research program ; Second Tibetan Plateau Scientific Expedition and Research program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; ARCHES project from the Helmholtz Association ; ARCHES project from the Helmholtz Association ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research program ; Second Tibetan Plateau Scientific Expedition and Research program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; ARCHES project from the Helmholtz Association ; ARCHES project from the Helmholtz Association ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research program ; Second Tibetan Plateau Scientific Expedition and Research program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; ARCHES project from the Helmholtz Association ; ARCHES project from the Helmholtz Association ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research program ; Second Tibetan Plateau Scientific Expedition and Research program ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; ARCHES project from the Helmholtz Association ; ARCHES project from the Helmholtz Association
源URL[http://ir.iggcas.ac.cn/handle/132A11/111352]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Zhang, Jian
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
2.GEOMAR Helmholtz Ctr Ocean Res Kiel, Kiel, Germany
3.China Univ Geosci, Sch Environm Studies, Wuhan, Peoples R China
4.Peking Univ, Sch Phys, Dept Atmosphere & Ocean Sci, Beijing, Peoples R China
5.Univ Chinese Acad Sci, Beijing, Peoples R China
6.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Resources, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Jian,Hu, Yongyun,Zhu, Chenguang,et al. Modeling the effects of global cooling and the Tethyan Seaway closure on North African and South Asian climates during the Middle Miocene Climate Transition[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2023,619:12.
APA Zhang, Jian,Hu, Yongyun,Zhu, Chenguang,Flogel, Sascha,Fang, Xiaomin,&Sun, Jimin.(2023).Modeling the effects of global cooling and the Tethyan Seaway closure on North African and South Asian climates during the Middle Miocene Climate Transition.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,619,12.
MLA Zhang, Jian,et al."Modeling the effects of global cooling and the Tethyan Seaway closure on North African and South Asian climates during the Middle Miocene Climate Transition".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 619(2023):12.

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来源：地质与地球物理研究所

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