Data/hora: 25/06/2024 19:01:38

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 01/12/2015
Data da última atualização: | 26/09/2017
Autoria: | STEIDLE NETO, A. J.; BORGES JÚNIOR, J. C. F.; ANDRADE, C. L. T.; LOPES, D. C.; NASCIMENTO, P. T.
Afiliação: | CAMILO DE LELIS TEIXEIRA DE ANDRADE, CNPMS.
Título: | Reference evapotranspiration estimates based on minimum meteorological variable requirements of historical weather data.
Ano de publicação: | 2015
Fonte/Imprenta: | Chilean Journal of Agricultural Research, Santiago, v. 75, n. 3, p. 366-374, 2015.
DOI: | 10.4067/S0718-58392015000400014
Idioma: | Inglês
Conteúdo: | Reference evapotranspiration (ET0) is critical for agricultural and urban planning, irrigation scheduling, regional water balance studies, and agroclimatological zoning. The objective of this study was to estimate ET0 based on methods with minimum meteorological variable requirements and on empirical models to predict solar radiation. These alternative methods were compared to the FAO Penman-Monteith method by using more than 80 yr of historical weather data. Alternative methods were adapted from the standard FAO Penman-Monteith or Priestley-Taylor methods, which allow estimating ET0 when fewer meteorological variables are available. The Hargreaves-Samani method was also analyzed. The mean absolute error, index of agreement, correlation coefficient, and confidence index were used to compare the alternative methods. Results showed that alternative methods based on the maximum and minimum temperatures, sunshine hours, and/or wind speed are appropriate for estimating ET0 in the region under study.
Palavras-Chave: | Modelagem.
Thesagro: | Evapotranspiração.
Categoria do assunto: | --
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (26790-1) - UPC - AP - DD -  -  -  - DIS