The rainfall regions which were delimited in this study have already been used for two studies in southern Africa by Dent et al. The former study involved a detailed analysis of soil moisture deficit for irrigation planning in southern Africa and for the latter a regionalisation of potential runoff depths and peak discharges for small catchments in southern Africa. In these two studies long-term daily soil moisture budgeting was conducted with the aim of fulfilling the above objectives. The Water Research Commission is acknowledged gratefully for funding this project. Civil Engineering, University of Pretoria, Pretoria.
Mapping mean annual and other rainfall statistics over southern Africa.
Agricultural Engineering, University of Natal. Crop water requirements, deficits and water yield for irrigation planning in southern Africa. South African Geog. 2nd Conference on Planned and Inadvertent Weather Modification, Baltimore. R.E.1976.On the application of trend surfaces of precipitation to mountainous areas.