MoGIRE: A Model for IntegratedWater Management

In a context of water scarcity where competition for water allocation is increasing, modelers areoften asked to move from specific water use models (either agricultural, industrial or residential)toward more integrated frameworks including an explicit representation off water users relationships.This is the main objective of MoGIRE (“Mod`ele pour la Gestion Int´egr´ee de la Ressourceen Eau”) which is a model developed by an interdisciplinary team for integrated water managementat the river basin level. MoGIRE includes a nodal representation of the water network andallows to optimize water use under several possible scenarios (agronomic, climatic or economic).Agricultural, urban and environmentalwater uses are represented in MoGIRE using mathematicalprogramming and econometric approaches. The model optimizes at each date the allocation ofwater across agricultural and urban water demands in order to maximize the social surplus derivedfrom water consumption given the constraints imposed by the water network. An application ofthe model is proposed for the Neste system located in South-West of France.