oa Civil Engineering = Siviele Ingenieurswese - Notes on the relationship between rainfall and runoff

Volume 2, Issue 11
  • ISSN : 1021-2000



This paper attempts to determine the relationship between rainfall and runoff in South Africa. It lists a number of gauging stations with rainfall and runoff data and suggests a method of dividing the Union into runoff zones. It indicates, by means of a graph, the limits between which the value of the runoff must fall for any particular zone and for any value of mean annual rainfall. Finally it suggests several formulae for use by those who prefer them to graphs.

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