globalchange  > 气候减缓与适应
DOI: 10.1007/s00704-018-2516-3
WOS记录号: WOS:000467151000017
论文题名:
Ensemble-based CMIP5 simulations of West African summer monsoon rainfall: current climate and future changes
作者: Akinsanola, A. A.; Zhou, Wen
通讯作者: Zhou, Wen
刊名: THEORETICAL AND APPLIED CLIMATOLOGY
ISSN: 0177-798X
EISSN: 1434-4483
出版年: 2019
卷: 136, 期:3-4, 页码:1021-1031
语种: 英语
WOS关键词: EXTREMES
WOS学科分类: Meteorology & Atmospheric Sciences
WOS研究方向: Meteorology & Atmospheric Sciences
英文摘要:

The West African summer monsoon (WASM) rainfall is of significant socioeconomic importance. Therefore, its response to climate change is of great concern to climate scientists. Based on observations, reanalysis, and multi-model ensemble mean (EnsMean) simulations of Coupled Model Intercomparison Project phase 5 (CMIP5) models, the responses of WASM rainfall, as well as some relevant atmospheric features, to global warming are investigated. Results from the historical period (1980-2005) indicate that EnsMean reasonably reproduced the characteristics of WASM rainfall, and the strength and position of the upper-level Tropical Easterly Jet (TEJ) and mid-level African Easterly Jet (AEJ). Under global warming, EnsMean exhibits localized future changes in spatial rainfall pattern; specifically, a statistically significant increase (decrease) is evident over the central-eastern (western) Sahel subregion. Similarly, the annual cycle exhibits a decrease (increase) in pre-monsoon (post-monsoon) rainfall over the region, evident over the Sahel subregion. Increased surface evaporation and enhanced atmospheric moisture convergence are notable over the region of increasing WASM rainfall, while a weakened and possible alteration of large-scale atmospheric circulation features is evident over the study area.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/125341
Appears in Collections:气候减缓与适应

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作者单位: City Univ Hong Kong, Sch Energy & Environm, Guy Carpenter Asia Pacific Climate Impact Ctr, Hong Kong, Peoples R China

Recommended Citation:
Akinsanola, A. A.,Zhou, Wen. Ensemble-based CMIP5 simulations of West African summer monsoon rainfall: current climate and future changes[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2019-01-01,136(3-4):1021-1031
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