Estimated Ecological Flow of the PRETO River by the Wetted Perimeter Method

α
Monica de Aquino Galeano Massera da Hora
Monica de Aquino Galeano Massera da Hora
σ
Rodrigo Sanguedo Baptista
Rodrigo Sanguedo Baptista
ρ
Prof. MAnica De Aquino Galeano Massera Da Hora
Prof. MAnica De Aquino Galeano Massera Da Hora
α Universidade Federal Fluminense Universidade Federal Fluminense

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Estimated Ecological Flow of the PRETO River by the Wetted Perimeter Method

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Abstract

The ecological flow is the minimum flow of a river necessary to maintain its aquatic fauna. In the present study, this flow was estimated for the Preto River, which belongs to the Piabanha River Basin, located in the state of Rio de Janeiro, Brazil. Because the Preto River’s entire length is within the state, its management is under the responsibility of the Rio de Janeiro State Environmental Institute (INEA). The INEA adopts the value of 50% of Q 7,10 as the minimum ecological flow for rivers in the state. Hydrological data were obtained from a stage gauge located on the river, allowing estimation of the ecological flow. The results were satisfactory, because the two ecological flow values calculated were lower than the lowest flow observed during the historic discharge series of the river.

References

6 Cites in Article
  1. Comitê Piabanha (2013). Unknown Title.
  2. Christopher Gippel,Michael Stewardson (1998). Use of wetted perimeter in defining minimum environmental flows.
  3. Ana Hidroweb (null). Table 1: Effluent release points, concentration, and flow rate imposed on the model estimated by the National Water Agency (Agência Nacional de Águas - ANA, 2020)..
  4. D Brasília (2013). Unknown Title.
  5. C Souza (2013). A utilização do Método do Perímetro Molhado para estimativa da vazão ecológica no rio Piabanha. Projeto Final do curso de Engenharia de Recursos Hídricos e do Meio Ambiente.
  6. L Leopold,T Maddock,Jr (1953). The hydraulic geometry of stream channels and some physiographic implications.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Monica de Aquino Galeano Massera da Hora. 2013. \u201cEstimated Ecological Flow of the PRETO River by the Wetted Perimeter Method\u201d. Global Journal of Research in Engineering - E: Civil & Structural GJRE-E Volume 13 (GJRE Volume 13 Issue E7): .

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Version of record

v1.2

Issue date

November 16, 2013

Language
en
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The ecological flow is the minimum flow of a river necessary to maintain its aquatic fauna. In the present study, this flow was estimated for the Preto River, which belongs to the Piabanha River Basin, located in the state of Rio de Janeiro, Brazil. Because the Preto River’s entire length is within the state, its management is under the responsibility of the Rio de Janeiro State Environmental Institute (INEA). The INEA adopts the value of 50% of Q 7,10 as the minimum ecological flow for rivers in the state. Hydrological data were obtained from a stage gauge located on the river, allowing estimation of the ecological flow. The results were satisfactory, because the two ecological flow values calculated were lower than the lowest flow observed during the historic discharge series of the river.

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Estimated Ecological Flow of the PRETO River by the Wetted Perimeter Method

Rodrigo Sanguedo Baptista
Rodrigo Sanguedo Baptista
Prof. MAnica De Aquino Galeano Massera Da Hora
Prof. MAnica De Aquino Galeano Massera Da Hora

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