ABSTRACT
This chapter focuses on a study which located between 14°N and 18.25°N forming the transition zone between the Sahara desert and the Sahel zone. This region suffers from a permanent scarcity of precipitation and shortage of usable water. The northern Sudan is an arid to hyper-arid region. The winters are moderate and dry with winds blowing mainly from the north. The summers are hot and with little rain; winds from southern directions prevail. Thus, during a year, dry northwinds alternate with moist winds from the equatorial convection cells, which can cause precipitation, the formation of sporadic lakes and wadi floods during the summer months. The study area forms the hydrogeological interface between the White Nile and the Blue Nile basins S-SE and the regional Nubian Aquifer System N-NW of Khartoum. The area is bordered by basement outcrops in the E, SW and farther in the W.
