Operação de reservatórios do Sistema de Abastecimento dos Municípios da Região Hidrográfica dos Sertões de Crateús, Estado do Ceará.

Abstract

The Região Hidrográfica dos Sertões de Crateús has experienced a long period of water scarcity in the past decade, as have other regions in the of Ceará state. Low values and intermittent rainfall made long-term storage impossible for the reservoirs responsible for urban supply. The present study aims to analyze the behavior of these storage reservoir from the synthetic streamflow between 1912 and 2018 in order to supply the demands observed in 2019. The capacity of the reservoirs was divided into four zones and the frequency with which the simulated volumes remain in each zone, the probability of change between them and the recharge time once it leaves one of the zones. In general, it was observed that the systems are already overloaded for current use, basically composed of human supply. The fragility of these limits any increase in demands, and consequently regional development in the most varied aspects.