Abstract
ThThe present paper analyzed the relationship between streamflow and rainfall at the stream of Itapemirim River Watershed (BHRI). The minimum streamflow with duration of seven days (Q7), the average annual streamflow (Qmed) and the annual maximum streamflow (Qmax) of 11 BHRI’s sub-basins were determined. Trends in rainfall and streamflow series were analyzed with Mann-Kandall and Pettitt nonparametric tests. Regression analysis between rainfall and streamflow were established. Results showed no trends on rainfall and Q7 series. Trends in Qmed were found only at one sub-basin and trends in Qmax were found in two sub-basins. The total rainfall was correlated with the streamflow of all the sub-basins. It has been found that annual rainfall amount (Pa) explained considerably variations in Qmed and Q7. Rainfall amounts of the rainiest month (Pmax) showed good correlation to Qmax.
Highlights
Water is a renewable natural resource, the environmental problems related to its distribution and availability are increasingly present today
The flow regime is capable of integrating several components of a river basin
The supplying of water from precipitation triggers a series of internal processes
Summary
Water is a renewable natural resource, the environmental problems related to its distribution and availability are increasingly present today. Some measures to ensure supply were taken, such as water supply companies prioritizing service to the population (as recommended in Article 1 of Law 9,433) and reviewing their contracts with the industrial sector, in addition to restriction or prohibition of irrigation in some municipalities during droughts. In this sense, the hydrographic Itapemirim River Basin (BHRI), as well as others in the State, had their water availability changed due to the droughts at the present time. From the foregoing, the present study aims to analyze the behavior of the BHRI watercourse flows and relating them to the rainfall precipitation behavior
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
