Groundwater is the Earth’s largest reservoir of available freshwater. As climate change and increasing anthropogenic pressures continue to affect its availability and quality, the discipline of hydrogeology is evolving rapidly. Training enough professionals capable of understanding and managing groundwater resources effectively is therefore more critical than ever. However, there is a perceived global shortage of adequately tr...

The Nubian Sandstone Aquifer System (NSAS) is one of the world’s largest fossil groundwater resources. In northern Chad, notably in the areas of the Tibesti and Ennedi mountains, precipitation occurs seasonally with rates up to 150 mm year –1 . This precipitation could lead to diffuse recharge, as well as concentrated recharge along the episodically flooded wadis. Although it is clear that infiltration occurs under flooded are...

Deterioration of groundwater quality due to nitrate loss from intensive agricultural systems can only be mitigated if methods for in-situ monitoring of nitrate leaching under active farmers’ fields are available. In this study, three methods were used in parallel to evaluate their spatial and temporal differences, namely ion-exchange resin-based Self-Integrating Accumulators (SIA), soil coring for extraction of mineral N (Nmin...