*3.2. Rainfall Data*

The rainfall data near the Campos Novos Hydroelectric Power Plant were acquired from the Hydrological Information System—Hidroweb of the Waters National Agency (http://www.snirh.gov.br/ hidroweb/). We used the average of rainfall from 1961 to 1990, historical series of 30 years with monthly information according to the National Meteorology Institute (*Instituto Nacional de Meteorologia*—INMET). Furthermore, we used the total monthly rainfall data obtained from the INMET for the years 1990, 2004 and 2016.
