Impact of rift tectonics on the groundwater system of Awash Basin in the East African Rift - multidisciplinary characterization using isotope hydrology , remote sensing and hydrochemistry

埃塞俄比亚的阿瓦什盆地位于构造活跃的东非裂谷系，具有复杂的水文地质背景。到目前为止，地下水动态和结构环境对该地区地下水流的影响还没有得到很好的理解，尽管当地人口严重依赖地下水作为主要的供水。不仅地下水的使用，而且其对地表水的影响是重要的，在盆地，地下水流入有关最近的构造活动似乎发挥了重要作用，在快速上升的Beseka湖的水平（0.12米/年）。这反过来又导致受影响地区频繁重建基础设施。本研究结合同位素水文学、水文地球化学和遥感技术，研究了地下水的流态发展和动态，包括含水层的垂直分层和受构造背景影响的地下水流。

Located in the tectonically active East African Rift System, the Awash Basin in Ethiopia has a complex hydrogeological setting. Until now, the groundwater dynamics and the impact of the structural setting on groundwater flow in this region are not well understood, though the local population heavily depends on groundwater as a major water supply. Not only the use of groundwater, but also its impact on surface water is of importance in the Basin, as groundwater inflow related to recent tectonic activities appears to play a significant role in the rapid rise of the level of Lake Beseka (0.12 m/year). This in turn causes a frequent rebuilding of infrastructure in the affected area. With a combination of isotope hydrology, hydrogeochemistry and remote sensing the present study investigates the flow regime development and dynamics of groundwater including the vertical stratifications of the aquifers and groundwater flow affected by the tectonic setting.