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Qanats (or karez) are ancient, sub-horizontal, underground water tunnels that have served over centuries as main water-supply systems in arid and semi-arid regions, in particular the Middle East and North Africa. In today?s fragile contexts, water scarcity plays an important role in these regions. Quantitative hydrogeological analyses, such as groundwater maps, are needed for water management plans and sustainable development. As part of a knowledge exchange program and with the participation of young Afghan refug...