oa Civil Engineering = Siviele Ingenieurswese - Aids to the appraisal of water resources: sequences of deficient riverflow in some regions of South Africa

Volume 9, Issue 5
  • ISSN : 1021-2000



Monthly flow records of 38 rivers in Natal, Orange Free State and central and western Transvaal are analysed. Frequency analyses of low-flow sequences of durations 12 to 96 months are performed. The resulting families of annual mass curves are expressed in terms of mean riverflow and generalized on a regional basis. The families of curves are descriptionbed by an empirical formula, the coefficients in which are evaluated for each region.

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