oa Civil Engineering = Siviele Ingenieurswese - Surface water resources of South Africa 1990
The survey of the 'Water Resources of South Africa 1990' took five years to complete. The existing division of South Africa into primary, secondary and tertiary catchments was further subdivided to create close on 2 000 quaternary catchments. The results of the study were published in six volumes, covering different regions of the country. Numerical information is provided in a set of appendices and spatial information is presented as a set of ten maps created using GIS. The numerical and spatial information is also available on a CD-ROM.
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