Abstract
The drought of 1975–76 had a significant effect on the river systems of England and Wales and will be used in water resources design for many years. It is therefore important to recognize that for the river flows it was not uniformly severe. Further, for many purposes, the duration of the low flow is at least as important as its severity. As an example, for the river Thames at Teddington it was only for periods of one and two months that the flow in 1976 was lower than that in 1921. The paper reviews the conditions which give rise to low flows in rivers, compares a representative set of low flow records, comments on criteria which were used to reduce the effect of the drought on the quantity and quality of river flows and suggests methods by which the management of rivers in time of drought might be improved.
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Schedule a callMore From: Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
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