Hydrodynamics and measurement of natural currents in a plain river using acoustic Doppler equipment

Authors

  • Gaston Priego-Hernández Universidad Juárez Autónoma de Tabasco
  • Héctor Rubio-Arias Universidad Autónoma de Chihuahua
  • Fabián Rivera-Trejo Universidad Juárez Autónoma de Tabasco http://orcid.org/0000-0002-6722-0863

DOI:

https://doi.org/10.19136/era.a5n14.1515

Abstract

Flow discharge and hydrodynamic field measurements are essential data for understanding aquatic ecosystems. The objective of this study was to compare the use of three Acoustic Doppler Current Profilers (ADCPs) in measuring flow discharge and hydrodynamics in the Carrizal River located in southeastern Mexico. The evaluated ADCPs operate on frequencies of 2 000 kHz, 1 500 kHz and 600 kHz. The measurements were carried out in a 100-m-wide cross section, five times each for each ADCP, within an estimated time of 5 min. The obtained data were: 1) flow velocity components; 2) depth; 3) transversal distance between each vector; 4) total distance of the cross section and; 5) geographic position of each vector. Tecplot® graphics were made with the collected information.
The results showed that velocity magnitudes were low in bank areas, while high in the center. For a 5-m depth range, the 2 000-kHz ADCP keeps a more homogenous velocity distribution in comparison with the other equipment. The results showed that discharge measurements varied by no more than 5% among ADCPs. It is concluded that the most important variable in choosing an ADCP for a hydrodynamic study is its operating frequency

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Author Biographies

  • Gaston Priego-Hernández, Universidad Juárez Autónoma de Tabasco

    Profesor-Investigador

    División Académica de Ciencias Básicas

  • Héctor Rubio-Arias, Universidad Autónoma de Chihuahua

    Profesor - Investigador

    Facultad de Zootecnia y Ecología

    Departamento de Recursos Naturales

     

  • Fabián Rivera-Trejo, Universidad Juárez Autónoma de Tabasco

    Profesor-Investigador

    División Académica de Ingeniería y Arquitectura

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Published

2018-04-24

Issue

Section

SCIENTIFIC ARTICLE

How to Cite

Priego-Hernández, G., Rubio-Arias, H., & Rivera-Trejo, F. (2018). Hydrodynamics and measurement of natural currents in a plain river using acoustic Doppler equipment. Ecosistemas Y Recursos Agropecuarios, 5(14), 293-201. https://doi.org/10.19136/era.a5n14.1515

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