Caracterização pluviométrica e influência na vazão do Rio das Velhas na região de Nova Lima - Minas Gerais

Abstract

The high demand for water resources utilization in the state of Minas Gerais necessitates improved control and understanding of their usage, both for urban and industrial purposes. Considering that a significant portion of the water supply in the Metropolitan Region of Belo Horizonte relies on the Rio das Velhas, understanding the rainfall patterns and their effects on the drainage flow in the region is crucial for water management. By analyzing historical data from rainfall and river flow monitoring stations in Nova Lima, it is observed that precipitation rates, annual rainfall intensity, and the flow of the Rio das Velhas are directly related. It is noticeable that from the year 2013 onwards, there has been a decrease in the river's flow despite not experiencing a significant decrease in precipitation, which may indicate an increase in the number of water abstraction in the region. If this situation of decreased water flow in one of the main drainage systems in the region is not controlled, it could lead to limitations in water supply.