Estimativa da disponibilidade hídrica para usos múltiplos em reservatórios sob periódicas crises hídricas: estudo de caso.

Abstract

In this study was the development of adaptation scenarios, based on management demands and political and socio-economic trends in order to verify the possibility to service multiple uses of Epitacio Pessoa reservoir, located in the semiarid region of the state of Paraiba, Brazil, by Water Model, Evaluation and Planning (WEAP). The generation scenarios resulted in eleven different operating options from the reservoir to the 2005-2015 series, which were divided into Current / Reference, Optimists and Pessimists. The scenarios simulated in WEAP demonstrate the applicability of the model to build a system of water resources in GIS and analyze this problem through various forms of presentation. These characteristics define it as a good assist in decision making for planning and management of water resources. Its application also showed that it is possible to practice irrigation supplied by Pessoa dam, since efficient management of the reservoir water is carried out through actions that aim to reduce losses in the supply system at least 20% the use of technologies for rainwater reuse and meet the demands be reduced to the limits available, or at most and legal requirement, the grant limit.