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- Title
COMPARAÇÃO ENTRE MÉTODOS DE ESTIMATIVA DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA NO OESTE BAIANO E MESORREGIÃO PAULISTA.
- Authors
Junior Nandorf, Rodrigo; Tonoli Feisberto, Rudson; Bernardina Garcia, André Dalla; Souza Vieira, Gustavo Haddad; Lo Monaco Vieira, Paola Alfonsa; Chambela Neto, Alberto
- Abstract
Considering the economic importance of the annual irrigated crops in the Piracicaba region and the West of Bahia state, the methods of estimating evapotranspiration become essential for the efficient management of water supply by irrigation. The objective of the present study was to evaluate the performance of the Hargreaves-Samani, Solar Radiation FAO, Makkink and Jensen-Haise methods compared to the standard Penman-Monteith FAO56 method for the municipalities of Piracicaba - SP and Luís Eduardo Magalhães - BA, Brazil, on an annual and seasonal scales. The comparison was based on the linear regression parameters (𝛽1 e 𝛽0), determination coefficient, Willmott agreement index, correlation coefficient, confidence coefficient, and the root mean square error. The municipality of Bahia presented higher daily evapotranspiration compared to São Paulo, with values of 5.4 and 3.4 mm day-1, respectively. The most suitable methods for estimating reference evapotranspiration for Piracicaba - SP and Luís Eduardo Magalhães - BA are Makkink and Solar Radiation FAO, respectively, both on an annual and seasonal scales. Hargreaves-Samani becomes the least recommended for estimating Reference Evapotranspiration (ET0) in Luís Eduardo Magalhães. In Piracicaba, the H-S method can be used, mainly for its simplicity.
- Subjects
SAO Paulo (Brazil); BAHIA (Brazil : State); WATER supply management; STANDARD deviations; SOLAR radiation; IRRIGATION water; EVAPOTRANSPIRATION
- Publication
Revista Brasileira de Agricultura Irrigada - RBAI, 2020, Vol 14, Issue 3, p4058
- ISSN
1982-7679
- Publication type
Article
- DOI
10.7127/rbai.v14n101163