(Article of periodic en Français - 1983)

Document title

Recherche d'une politique de gestion des stocks d'eau de barrages-réservoirs en vue de soutenir les étiages. 2. Utilisation d'un modèle alterné annuel apports-déficits pour la recherche des conditions de gestion

Authors(s) and Affiliation(s)



The construction of five reservoir dams has been planned in the upper Loire basin to sustain the low flows of the river. The management of these reservoirs, must be find in order to establish the daily draft decisions at every stage of the project. A hydrological criterion concerning the low flows at a station in the valley is used to judge the results. It is possible to determine the optimal carry-over storage for this criterion with the use of a long series of simulated inflows to reservoirs and annual deficits, when the future conditions are assumed to be known. The statistical analysis of the results helps in the formulation of the objectives for long-term Q assuring the carry-over storage for a predetermined risk of failure. The objective for long-term Q will fail if the low flow is severe. Thus some deterministic and statistical hypotheses have been used to formulate an objective for the mean term of flow Q (tj) which is calculated each day t and adjusted to the hydrological conditions of the year. A modular model is used to calculate the daily flow. The results obtained from simulation were satisfactory.


Article of periodic

published at : Journal of hydrology Amsterdam

Editor :

Millesime : 1983, vol. 60, no1-4 [pp. 81-104]

Bibliographic references : 3 réf.



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