Albergel Jean, Nasri S., Boufaroua M. (1999). Small dams' water balance : experimental conditions, data processing and modelling. In :
Berndtsson R. (ed.). Proceedings of the international seminar rain water harvesting and management of small reservoirs in arid and semiarid areas. Lund : Lund University, p. 45-58. Rain Water Harvesting and Management of Small Reservoirs in Arid and Semiarid Areas : International Seminar, Lund (SWE), 1998/06/29.
Titre du document
Small dams' water balance : experimental conditions, data processing and modelling
Année de publication
1999
Type de document
Colloque
Auteurs
Albergel Jean, Nasri S., Boufaroua M.
In
Berndtsson R. (ed.), Proceedings of the international seminar rain water harvesting and management of small reservoirs in arid and semiarid areas
Source
Lund : Lund University, 1999,
p. 45-58
Colloque
Rain Water Harvesting and Management of Small Reservoirs in Arid and Semiarid Areas : International Seminar, Lund (SWE), 1998/06/29
Within the HYDROMED program, to assess hydrological variables describing the water balance of small dams, each reservoir is equipped with a water level gauge, an evaporation pan, and two stations for automatic data collection. The first station is connected to a tipping bucket rain gauge (resolution of 0.5 mm rainfall), while the second is connected to a submerged probe that measures the water level, within 1 cm, and temperature each 5 minutes. The spillway is designed in such a way that the discharge can be estimated. The bathymetry of each reservoir is recorded at least once every hydrological year, and is compared with a detailed ground survey, making it possible to determine the silting rate of each reservoir, and to create level-volume and level-surface relationships. The water abstraction for main users around the reservoirs is observed daily. A software package allows to take the data directly and store it in a single hydrological data bank : rainfall and evaporation, level-volume and level surface curves for the reservoir, water level-spillway discharge curves, water level, spillway discharge, volume and surface area of water in the reservoir, water abstraction. The software allows editing tables of data and curves. Many different time steps can be choosen and various ways to present the datda are possible. For a certain period t, the general water balance equation for a reservoir can be applied by using the principle of water volume conservation. The variation of the water volume stored in the reservoir is equal to the sum of water volumes entering minus water volumes exiting the system... (D'après résumé d'auteur)
Plan de classement
Evaluation et gestion des ressources en eau [062EVAEAU]
Descripteurs
RESERVOIR ; GESTION DE L'EAU ; BILAN HYDROLOGIQUE ; BILAN HYDRIQUE ; ACQUISITION DE DONNEES ; APPAREIL DE MESURE ; EVAPORATION ; PRECIPITATION ; NIVEAU DE L'EAU ; TEMPERATURE ; BATHYMETRIE ; TRAITEMENT DE DONNEES ; LOGICIEL D'APPLICATION ; MODELISATION
Description Géographique
ZONE SEMIARIDE ; TUNISIE
Localisation
Fonds IRD [F A010023960]
Identifiant IRD
fdi:010023962
