REGIONALIZATION OF FLOWS IN THE RIVER BASINS OF PERUÍPE, ITANHÉM AND JUCURUÇU TO MAKE INFORMATION AVAILABLE IN A MOBILE APPLICATION
Hydrology; Fluviometry; Pluviometry; South of Bahia
The present work aims at the hydrological regionalization of the Peruípe, Itanhém and Jucuruçu river basins located in the extreme south of Bahia and east of Minas Gerais. This study was carried out through the following stages: data collection (images and fluviometric information of the basin); creation of Hydrologically Consistent Digital Elevation Models (MDEHC); standardization and compatibility of data and delimitation of drainage areas and perimeters of contribution basins and the length of the main river channel for each station. Through the correction data of the key curve, it was possible to proceed to the flow Regionalization stage. In the SisCORV software, the physiographic data of each fluviometric station (area [Km2], perimeter [Km] and length of the main channel [Km]) were entered, as well as the flows from the SisCAH software, namely: reference flows Q7,10 and Q90, minimum, average and maximum flows for return times of 5, 10, 20, 25, 50 and 100 years. Thus, it was possible to choose which type of function best suited each case and define the regionalization equations. For the next steps, the application of the model in the ModelBuilder tool of the ArcGIS software is expected to define the characteristics (area and perimeter) of the basins for each 1 km of river length. With the Regionalization Equations and the physiographic characteristics of each section of the basins, it will be possible to obtain flow data from the main channel for any point in the basins. Finally, it is intended that, from a geographic coordinate entered by the user in a mobile application already developed in Java language, by the State University of Southwest Bahia (UESB), the system returns the flow data. The hydrological information collected is intended to assist the Basin Committee in the management of water resources.