Quota-flow ratio and key-curve adjustment: case study in the hidrographic basin of the Acre River (Acre, Brazil)
DOI:
https://doi.org/10.6008/CBPC2179-6858.2022.001.0011Keywords:
Quota-flow ratio, Key-curve, Acre RiverAbstract
The monitoring of hydrological information is essential for sustainable planning and management of water resources. The key-curve is an important management tool because it allows to estimate the flow of a river from the water level (quota), and vice versa. Thus, the central aim of this work was to elaborate the key-curve for five points along the Acre River, using data from the fluviometric stations of the National Agency for Water and Basic Sanitation, located at Rio Branco, Brasileia, Xapuri, Assis Brasil, and Boca do Acre-AM. The results were satisfactory, with R² above 0.94, and the key-curve was well adjusted. The key-curve related to the stretch corresponding to the Acre capital, city of Rio Branco, was in evidence, with data calculated using the equation Q=0.406 (H+2.3)^2.95, with R² of 0.948. The analysis for a period of 20 years showed changes in the tracing of the key-curve, related to changes in the watercourse.
Downloads
Downloads
Published
Issue
Section
License
Copyright (c) 2022 Ibero-American Journal of Environmental Sciences
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The CBPC - Companhia Brasileira de Produção Científica (Brazil CNPJ: 11.221.422/0001-03) the material rights of the published works. The rights relate to the publication of the work anywhere in the world, including rights to renewals, expansions and dissemination of the contribution, as well as other subsidiary rights. All electronically published works may subsequently be published in printed collections under the coordination of this company and / or its partners. The authors preserve the copyright, but are not allowed to publish the contribution in another medium, printed or digital, in Portuguese or in translation.