A new national isohyet map for the country was produced. Chapter 5 deals with surface water. Run-off volumes are assessed within the regional systems identified and the individual catchments of the main wadis. The variations of flow in time and space are linked to meteorological and physiographic factors. A synopsis of groundwater conditions is provided in Chapter 6, illustrated by a new hydrogeological map.
Attention is given to the dynamic aspects of the groundwater systems and to groundwater quality.
The study is a very professional contribution. It is a credit to its authors and its sponsors and it will be of immense scientific and development utility. 11 October 1995, ah.