Influência da acurácia de instrumentos de medidas na comparação de métodos de estimativa da evapotranspiração de referência
Carregando...
Data
2008-01-01
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Acesso aberto
Resumo
The aim of this investigation was to evaluate four reference methods to estimate evapotranspiration (Makkink, Hargreaves, Class A pan and Radiation), compared tb Penman-Monteith method, that is considered standard by the Food and Agricultural Organization of the United Nations (FAO). Errors due to variable measurements in the reference evapotranspiration estimate were taken into consideration. The research was developed in an experimental area of the Department of Rural Engieering of the School of Agricultural and Veterinarian Sciences, Campus of Jaboticabal, São Paulo State University. An automated weather station was used and it was equipped with sensors to measure global and net radiation, temperature, relative humidity, and wind speed. The aftermath showed a better adjustment to Hargreaves. Makkink, Class A pan and Radiation methods are different from Penman-Monteith, therefore, they cannot be compared. To evaluate methods to estimate evapotranspiration and avoid possible evaluation errors, ETo estimate errors must be considered.
Descrição
Palavras-chave
Clas A Pari e Solar Radiation, Hargreaves, Makkink, Penman-Monteith, Atmospheric humidity, Atmospheric radiation, Atmospheric temperature, Error analysis, Evapotranspiration, Irrigation, Wind, accuracy assessment, comparative study, estimation method, evapotranspiration, experimental study, measurement method, net radiation, Penman-Monteith equation, relative humidity, solar radiation, standard (reference), temperature, wind velocity, Brazil, Sao Paulo [Brazil], South America
Idioma
Português
Como citar
Irriga, v. 13, n. 1, p. 63-80, 2008.