HS Cal software for the calibration of the Hargreaves-Samani equation

Authors

  • Lucas Borges Ferreira Universidade Federal de Viçosa, Departamento de Engenharia Agrícola, P.H. Rolfs, s/no, CEP 6570-000 Viçosa, MG, Brazil.
  • Fernando França da Cunha Universidade Federal de Viçosa, Departamento de Engenharia Agrícola, P.H. Rolfs, s/no, CEP 6570-000 Viçosa, MG, Brazil.
  • Gilberto Chohaku Sediyama Universidade Federal de Viçosa, Departamento de Engenharia Agrícola, P.H. Rolfs, s/no, CEP 6570-000 Viçosa, MG, Brazil.
  • Flavio Bastos Campos Universidade Federal de Viçosa, Departamento de Engenharia Agrícola, P.H. Rolfs, s/no, CEP 6570-000 Viçosa, MG, Brazil.

DOI:

https://doi.org/10.1590/S1678-3921.pab2019.v54.26507

Keywords:

agrometeorology, irrigation, local calibration, minimum data, reference evapotranspiration, simplified models

Abstract

The objective of this work was to develop a software (HS Cal) to calibrate the Hargreaves-Samani equation for specific periods of the year, in global, seasonal, and monthly time scales, as well as to compare the performance of calibrated and non-calibrated equations. The software was developed in order to use raw data provided by Banco de Dados Meteorológicos para Ensino e Pesquisa (BDMEP). All calibrations outperformed the original Hargreaves-Samani equation, especially with the use of seasonal and monthly calibrations. The HS Cal software can easily calibrate the Hargreaves-Samani equation, allowing the identification of the best form of this equation for a given site.

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Published

2019-07-05

How to Cite

Ferreira, L. B., da Cunha, F. F., Sediyama, G. C., & Campos, F. B. (2019). HS Cal software for the calibration of the Hargreaves-Samani equation. Pesquisa Agropecuaria Brasileira, 54(X), e00226. https://doi.org/10.1590/S1678-3921.pab2019.v54.26507

Issue

V.54, Jan./Dec., 2019 :Continuos publication

Section

AGROMETEOROLOGY