GIS applied to peak discharge estimation in a small watershed located in the brazilian semi-arid.

Authors

  • Deodato do Nascimento Aquino Universidade Federal do Ceará
  • Adunias dos Santos Teixeira Universidade Federal do Ceará
  • Eunice Maia de Andrade Universidade Federal do Ceará
  • Fernando Bezerra Lopes Universidade Federal do Ceará
  • Antônio Dimas Simão de Oliveira Universidade Federal do Ceará

Keywords:

CN. SIG. Vazão máxima.

Abstract

This work was carried out to estimate the peak discharge of a small watershed sited in the semiarid region of Brazilian Northeast using Geographic Information System (GIS). The study was developed in Jaguaribe Mirim watershed, which belongs to the Alto Jaguaribe basin, sited in the meridional portion of Ceará State, Brazil. Over land flow was estimated using the Soil Conservation Service Method, Curve Number. The effective rainfall over the area went from 16.62 to 114.88 mm, while the peak flow discharge changed from 0.76 to 24.42 42 m3 s-1. Based on the results, we concluded that perspective of the model use is high, spite of the conditions of data set access.

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Published

2009-05-13

How to Cite

Aquino, D. do N., Teixeira, A. dos S., de Andrade, E. M., Lopes, F. B., & de Oliveira, A. D. S. (2009). GIS applied to peak discharge estimation in a small watershed located in the brazilian semi-arid. Revista Tecnologia, 29(1). Retrieved from https://ojs.unifor.br/tec/article/view/41

Issue

Vol. 29 No. 1 (2008)

Section

Artigos

License

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