Assessment of Regional Climate Models over Côte D'Ivoire and Analysis of Future Projections over West Africa

• 作者: Abdourahamane Konare Adama Diawara Arona Diedhiou Bernard Kouakou Dje Kouakou Kouadio Vincent Olanrewaju Ajayi
• 来源期刊: 大气和气候科学(英文)
• 学科: 地球科学
• 关键词: AMMA ENSEMBLES WEST AFRICA MONSOON Regional Climate Models Precipitation
• 年，卷（期）: dqhqhkxyw,（2）
• 页码范围: 63-81
• 页数: 19页
• 分类号: P4

摘要

The ability of six Regional Climate Models (RCMs) used in AMMA-ENSEMBLES project is assessed over six meteorological stations in C&#244te d’Ivoire. The ensemble mean of the models is also used for the prediction of climate change over West Africa. The study focused on two periods: the period 1995-2005, the present-day simulations, is used to evaluate the skills of the models over the country and the years 2010-2013, for assessment of the future climate change scenario used. The results show that the skills of the models vary from one station to another and from one season to another. None of the models considered, presents an excellent performance over the entire country and in all the seasons. Generally, the ensemble mean of all the models presents better results when compared with the observation. These results suggest that the choice of any model for study over the country may depend on the focus of interest: intensity or variability of the rain and also on area of interest. The projection for 2020-2040, future climate change over West Africa shows that the Sahel exhibits a tendency to be drier while wetter Guinean coast is observed.