Evaluation of intense rainfall parameters interpolation methods for the Espírito Santo State

  • Roberto Avelino Cecílio Universidade Federal do Espírito Santo
  • Alexandre Cândido Xavier Universidade Federal do Espírito Santo
  • Fernando Falco Pruski Universidade Federal de Viçosa
  • Maycon Patrício de Hollanda Universidade Federal do Espírito Santo
  • José Eduardo Macedo Pezzopane Universidade Federal do Espírito Santo
Keywords: spatialization, inverse distance to a power, water resources, hydrologic modeling, precipitation

Abstract

Intense rainfalls are often responsible for the occurrence of undesirable processes in agricultural and forest areas, such as surface runoff, soil erosion and flooding. The knowledge of intense rainfall spatial distribution is important to agricultural watershed management, soil conservation and to the design of hydraulic structures. The present paper evaluated methods of spatial interpolation of the intense rainfall parameters (“K”, “a”, “b” and “c”) for the Espírito Santo State, Brazil. Were compared real intense rainfall rates with those calculated by the interpolated intense rainfall parameters, considering different durations and return periods. Inverse distance to the 5th power IPD5 was the spatial interpolation method with better performance to spatial interpolated intense rainfall parameters.

Author Biographies

Roberto Avelino Cecílio, Universidade Federal do Espírito Santo
Eng. Agrícola, DS, Bolsista Produtividade em Pesquisa do CNPq, Professor Adjunto, Departamento de Engenharia Florestal, Universidade Federal do Espírito Santo, Alto Universitário s/n – Caixa Postal 16, CEP 29500-000, Alegre – ES.
Alexandre Cândido Xavier, Universidade Federal do Espírito Santo
Eng. Agrícola, DS, Professor Adjunto, Departamento de Engenharia Rural, Universidade Federal do Espírito Santo, Alto Universitário s/n – Caixa Postal 16, CEP 29500-000, Alegre – ES.
Fernando Falco Pruski, Universidade Federal de Viçosa
Eng. Agrícola, DS, Bolsista Produtividade em Pesquisa do CNPq, Professor Titular, Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, DEA - UFV, CEP 36570-000, Viçosa – MG.
Maycon Patrício de Hollanda, Universidade Federal do Espírito Santo
Graduando em Agronomia, Universidade Federal do Espírito Santo, Alto Universitário s/n – Caixa Postal 16, CEP 29500-000, Alegre – ES.
José Eduardo Macedo Pezzopane, Universidade Federal do Espírito Santo
Eng. Florestal, DS, Bolsista Produtividade em Pesquisa do CNPq, Professor Adjunto, Departamento de Engenharia Florestal, Universidade Federal do Espírito Santo, Alto Universitário s/n – Caixa Postal 16, CEP 29500-000, Alegre – ES.
Published
21/12/2009
Issue
Vol. 4 No. 3 (2009)
Section
Papers

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