Modelling in the Semi Arid Volta Basin of West Africa

Abstract

A region is said to be semi-arid when it receive precipitation below potential evapotranspiration thus insufficient water in the soil (excess to the wilting point) which to the extent support less growth and development of plant and animal life as compared to arid region which is characterized by a severe lack of available water, to the extent of hindering or even preventing the growth of primary life. The arid and semi-arid regions are fairly distributed within the earth’s surface (Figure 1)