Surface albedo response to sahel precipitation changes

The Sahel is a narrow region in West Africa, lying between the Sahara desert at 18°N and savannah and equatorial forest at about 15°N. The climate and atmospheric dynamics of this region are determined by the West African monsoon resulting from the alternating southwesterly and northwesterly winds, corresponding to a north-south migration of the Intertropical convergence Zone (ITCZ). during the northward shift of the ITCZ, rainfall occurs over Sahel during a short but intense wet season, between late June and mid-September, which induces fast vegetation growth. The dry season that follows this rainy period produces a rapid drying the vegetation.