Análise regional de escoamento superficial acumulado como base para planejamento em áreas com insuficiência de dados.

Abstract

When planning to build reservoirs for irrigation, water supply, flood control, perennialization, etc., hydrologists often come across the problem. lack of data or ineffectiveness, as there are few fluviometric stations installed and rarely their location coincides with reservoir. In order to solve this problem, this paper presents a method for regional volume analysis in a hydrologically homogeneous region. This method basically consists of: establishing for each fluviometric station analyzed the relationship between the variables volume, probability and basic flow, then proceed to the regionalization of this relationship finding curves that represent it for the whole region. With these curves you can quickly and simply obtain: 1) the volumes that can be stored; 2) the probability with which these volumes can be reached and 3) the basic flow that can be released without prejudice to the stored volume for any section of any watercourse in the region. To exemplify the development of the methodology, it uses the watersheds of the Jaguaribe, Apodi and Piranhas rivers.