The African easterly jet (AEJ) and African easterly waves (AEWs) can have both local and far-reaching impacts on weather. It is therefore crucial to understand how the AEJ and AEWs will respond to future climate change. In this study, we examine anthropogenic influences on the AEJ–AEW system using the Weather Research and Forecasting (WRF) model configured as a tropical channel model (TCM). Hindcast simulations for the years 2001–2010 were performed using the WRF TCM, and ten additional years of simulations were performed using the pseudo-global warming method with the initial and boundary conditions of the model modified as if it were the late twenty-first century. A comparison of the simulations from the two climate scenarios indicates robust changes to both the AEJ and AEWs. For the AEJ, the jet is weaker and shifted northwards and upwards in the future climate, in association with an increase in precipitation over the Sahel and a strengthening of the meridional temperature gradient. For the AEWs, there is an increase in the number and strength of the waves in the future climate, in association with an increase in the baroclinic and barotropic energy conversions. The barotropic energy conversion in particular has a larger contribution in the future climate, which manifests in the southern AEW track experiencing greater future strengthening than the northern track.

非洲东风急流 (AEJ) 和非洲东风浪 (AEW) 可以对天气产生局部和深远的影响。因此，了解 AEJ 和 AEW 将如何应对未来的气候变化至关重要。在这项研究中，我们使用配置为热带通道模型 (TCM) 的天气研究和预报 (WRF) 模型检查人为对 AEJ-AEW 系统的影响。2001-2010 年的后报模拟是使用 WRF TCM 进行的，另外 10 年的模拟是使用伪全球变暖方法进行的，模型的初始和边界条件修改为 21 世纪后期. 两种气候情景模拟的比较表明 AEJ 和 AEW 都发生了强劲的变化。对于 AEJ，随着萨赫勒地区降水的增加和经向温度梯度的加强，喷流变弱并在未来的气候中向北和向上移动。对于 AEW，未来气候中波浪的数量和强度会增加，这与斜压和正压能量转换的增加有关。特别是正压能量转换对未来气候的贡献更大，这表现在南部 AEW 轨道比北部轨道经历更大的未来强化。与斜压和正压能量转换的增加有关。特别是正压能量转换对未来气候的贡献更大，这表现在南部 AEW 轨道比北部轨道经历更大的未来强化。与斜压和正压能量转换的增加有关。特别是正压能量转换对未来气候的贡献更大，这表现在南部 AEW 轨道比北部轨道经历更大的未来强化。