Diakhao, Senegal - Sahel (IMAGE) University of Maryland Caption This photo, taken outside the town of Diakhao, Senegal in March of 2018, illustrates the conditions of the Sahel during the dry season. The Sahel is the transition zone that lies south of the Sahara Desert, and fluctuates between very dry, desert-like conditions and wetter, more temperate conditions every year. Expansion of the Sahara is putting pressure on Sahel communities, such as Diakhao, that rely on seasonal increases in rainfall during the wet season. Credit Mamadou Faye/courtesy Wassila Thiaw, NOAA CPC. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.