Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-018-4248-6 |
Modelling the potential impacts of afforestation on extreme precipitation over West Africa | |
Odoulami, Romaric C.1,2; Abiodun, Babatunde J.1; Ajayi, Ayodele E.3,4 | |
2019-02-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52页码:2185-2198 |
文章类型 | Article |
语种 | 英语 |
国家 | South Africa; Nigeria |
英文摘要 | This study examines how afforestation in West Africa could influence extreme precipitation over the region, with a focus on widespread extreme rainfall events (WEREs) over the afforestation area. Two regional climate models (RegCM and WRF) were applied to simulate the present-day climate (1971-2000) and future climate (2031-2060, under IPCC RCP 4.5 emission scenario) with and without afforestation of the Savannah zone in West Africa. The models give a realistic simulation of precipitation indices and WEREs over the subcontinent. On average, the regional models projected future decreases in total annual wet day precipitation (PRCPTOT) and total annual daily precipitation greater than or equal to the 95th percentile of daily precipitation threshold (R95pTOT) and increases in maximum number of consecutive dry days (CDD) over Sahel. Over Savannah, the models projected decreases in PRCPTOT but increases in R95pTOT and CDD. Also, an increase in WEREs frequency is projected over west, central and east Savannah, except that RegCM simulated a decrease in WEREs over east Savannah. In general, afforestation increases PRCPTOT and R95pTOT but decreases CDD over the afforestation area. The forest-induced increases in PRCPTOT and decreases in CDD affect all ecological zones in West Africa. However, the simulations show that afforestation of Savannah also decreases R95pTOT over the Guinea Coast. It further increases WEREs over west and central Savannah and decreases them over east Savannah because of the local decrease in R95pTOT. Results of this study suggest that the future changes in characteristics of extreme precipitation events over West Africa are sensitive to the ongoing land modification. |
英文关键词 | Regional climate model Climate change Afforestation Extreme precipitation Climate extremes West Africa |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460902200051 |
WOS关键词 | CORDEX SIMULATIONS ; FUTURE CLIMATE ; PARAMETERIZATION ; TEMPERATURE ; CONVECTION ; SYSTEM ; CMIP5 |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35754 |
专题 | 气候变化 |
作者单位 | 1.Univ Cape Town, Climate Syst Anal Grp, Dept Environm & Geog Sci, Cape Town, South Africa; 2.Fed Univ Technol Akure, West African Sci Serv Ctr Climate Change & Adapte, Grad Res Program West African Climate Syst, Akure, Nigeria; 3.Fed Univ Technol Akure, Dept Agr & Environm Engn, Akure, Nigeria; 4.Afe Babalola Univ, Dept Agr & Food Engn, Ado Ekiti, Nigeria |
推荐引用方式 GB/T 7714 | Odoulami, Romaric C.,Abiodun, Babatunde J.,Ajayi, Ayodele E.. Modelling the potential impacts of afforestation on extreme precipitation over West Africa[J]. CLIMATE DYNAMICS,2019,52:2185-2198. |
APA | Odoulami, Romaric C.,Abiodun, Babatunde J.,&Ajayi, Ayodele E..(2019).Modelling the potential impacts of afforestation on extreme precipitation over West Africa.CLIMATE DYNAMICS,52,2185-2198. |
MLA | Odoulami, Romaric C.,et al."Modelling the potential impacts of afforestation on extreme precipitation over West Africa".CLIMATE DYNAMICS 52(2019):2185-2198. |
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