Analysis reveals that flow duration curves and hydrological indices affect water availability in Iguaçu River, suggesting better management strategies.
In Brazil, an allocation system was implemented in 1994 to regulate the use of water, considering water availability based on the hydrological characteristics of the basins. Knowing these conditions is essential for the planning and sustainable management of water resources, thereby promoting sustainable development. The current system uses minimum reference flows to define the water availability in each basin. This study analyzed different methodologies for calculating reference flows in the Iguaçu River basin, comparing the values obtained by the FDC, AFDC, and 7-day moving averages (Q7), as well as the Weibull equation. The results indicated that the flows obtained by AFDC were higher, while the lowest flow corresponded to Q7.10. The choice between these methods has a direct impact on grant management, since the adoption of Q7.10 or Q95 imposes stricter restrictions, influencing the economy and users in the region. Therefore, defining the appropriate methodology must balance water availability and user needs.
No takes yet. Share an insight, caveat, or question.
Rosa et al. (2025) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: