In this image, each research area is marked with a circle, from south to north: Kajiado District and Turkana District in Kenya, and the Negev in Israel. The summer of 1984 was characterized by severe drought in Kenya; both the Kajiado and the Turkana Districts are marked by the color yellow signifying the lowest vegetation activity NDVI class (Bruins et al. 2003).

Source: prepared by Bruins with GIS software from the FAO-ARTEMIS NOAA AVHRR data base (FAO, 1993).