Relação entre as características hidromorfológicas dos açudes e suas regras de operação na bacia hidrográfica dos rios Piancó-Piranhas-Açu

Abstract

The Brazilian semiarid region faces the constant challenge of water scarcity to meet regional demands. In this context, this study aimed to develop a linear model establishing a relationship between the Rationing Severity Index (RSI) in reservoir water supply, when subjected to optimized operation rules, and their hydromorphological characteristics. The methodology involved optimizing the reservoirs' operation rules, calculating variables to survey hydromorphological characteristics, and determining the linear model using multiple linear regression to relate RSI to hydromorphological variables. The study was conducted using the statistical software R, and the analyses revealed promising results considering the intrinsic complexity of the studied system. The obtained coefficient of determination (R²) was 0.8339, indicating a strong correlation between the variables considered in the model. This result adds robustness to the proposed model, suggesting that the hydromorphological characteristics of reservoirs have a significant impact on the water rationing severity index. By addressing the complex interaction between the physical and hydrological characteristics of reservoirs and the effectiveness of optimized operation rules, the study provides a deeper understanding of the dynamics involved, offering valuable insights to enhance water management practices in semiarid regions, crucial for promoting sustainable development in the region.