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Mid-Pliocene West African Monsoon rainfall as simulated in the PlioMIP2 ensemble

文献类型:期刊论文

作者Berntell, Ellen1,3; Zhang, Qiong1,3; Li, Qiang1,3; Haywood, Alan M.4; Tindall, Julia C.4; Hunter, Stephen J.4; Zhang, Zhongshi5,6; Li, Xiangyu5; Guo, Chuncheng6; Nisancioglu, Kerim H.7,8,9
刊名CLIMATE OF THE PAST
出版日期2021-08-27
卷号17期号:4页码:1777-1794
ISSN号1814-9324
DOI10.5194/cp-17-1777-2021
英文摘要The mid-Pliocene warm period (mPWP; similar to 3.2 million years ago) is seen as the most recent time period characterized by a warm climate state, with similar to modern geography and similar to 400 ppmv atmospheric CO2 concentration, and is therefore often considered an interesting analogue for near-future climate projections. Paleoenvironmental reconstructions indicate higher surface temperatures, decreasing tropical deserts, and a more humid climate in West Africa characterized by a strengthened West African Monsoon (WAM). Using model results from the second phase of the Pliocene Modelling Intercomparison Project (PlioMIP2) ensemble, we analyse changes of the WAM rainfall during the mPWP by comparing them with the control simulations for the pre-industrial period. The ensemble shows a robust increase in the summer rainfall over West Africa and the Sahara region, with an average increase of 2.5 mm/d, contrasted by a rainfall decrease over the equatorial Atlantic. An anomalous warming of the Sahara and deepening of the Saharan Heat Low, seen in >90% of the models, leads to a strengthening of the WAM and an increased monsoonal flow into the continent. A similar warming of the Sahara is seen in future projections using both phase 3 and 5 of the Coupled Model Intercomparison Project (CMIP3 and CMIP5). Though previous studies of future projections indicate a west-east drying-wetting contrast over the Sahel, PlioMIP2 simulations indicate a uniform rainfall increase in that region in warm climates characterized by increasing greenhouse gas forcing. We note that this effect will further depend on the long-term response of the vegetation to the CO2 forcing.
WOS关键词CLIMATE SIMULATIONS ; EXPERIMENTAL-DESIGN ; SUMMER MONSOON ; MODEL ; MIDHOLOCENE ; VEGETATION ; EVOLUTION ; OCEAN ; VARIABILITY ; SENSITIVITY
资助项目Vetenskapsradet[2013-06476] ; Vetenskapsradet[2017-04232]
WOS研究方向Geology ; Meteorology & Atmospheric Sciences
语种英语
出版者COPERNICUS GESELLSCHAFT MBH
WOS记录号WOS:000691998900001
资助机构Vetenskapsradet ; Vetenskapsradet ; Vetenskapsradet ; Vetenskapsradet ; Vetenskapsradet ; Vetenskapsradet ; Vetenskapsradet ; Vetenskapsradet
源URL[http://ir.iggcas.ac.cn/handle/132A11/102618]  
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Berntell, Ellen
作者单位1.Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden
2.Univ Utrecht, Ctr Complex Syst Sci, Utrecht, Netherlands
3.Stockholm Univ, Dept Phys Geog, Stockholm, Sweden
4.Univ Leeds, Sch Earth & Environm, Woodhouse Lane, Leeds, W Yorkshire, England
5.China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan, Peoples R China
6.NORCE Norwegian Res Ctr, Bjerknes Ctr Climate Res, Bergen, Norway
7.Univ Bergen, Dept Earth Sci, Bergen, Norway
8.Bjerknes Ctr Climate Res, Bergen, Norway
9.Univ Oslo, Ctr Earth Evolut & Dynam, Oslo, Norway
10.Helmholtz Zentrum Polar & Meeresforsch, Alfred Wegener Inst, Bremerhaven, Germany
推荐引用方式
GB/T 7714
Berntell, Ellen,Zhang, Qiong,Li, Qiang,et al. Mid-Pliocene West African Monsoon rainfall as simulated in the PlioMIP2 ensemble[J]. CLIMATE OF THE PAST,2021,17(4):1777-1794.
APA Berntell, Ellen.,Zhang, Qiong.,Li, Qiang.,Haywood, Alan M..,Tindall, Julia C..,...&Brady, Esther C..(2021).Mid-Pliocene West African Monsoon rainfall as simulated in the PlioMIP2 ensemble.CLIMATE OF THE PAST,17(4),1777-1794.
MLA Berntell, Ellen,et al."Mid-Pliocene West African Monsoon rainfall as simulated in the PlioMIP2 ensemble".CLIMATE OF THE PAST 17.4(2021):1777-1794.

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来源:地质与地球物理研究所

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