Data/hora: 25/06/2024 13:02:52

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 05/07/1996
Data da última atualização: | 05/09/1996
Autoria: | STANHILL, G.
Título: | A comparison of methods of calculating potential evapotranspiration from climatic data.
Ano de publicação: | 1961
Fonte/Imprenta: | Israel Journal Agricultural Research, v.11, n.3/4, p.159-171, Dec. 1961.
Idioma: | Inglês
Conteúdo: | Measurements of potential evapotranspiration from alafalfa, made under arid conditions in southern Israel, have shown that there are a number of sufficiently practical and accurate meteorological methods of estimating water loss available for field practice. The resulta indicate that, of the eight methods tested, those based on open water evaporation, measured in standard evaporation tanks or pans or estimated by Penman's method, are the best. The simpler but more empirical formulae are satisfactory only if the local correction factors, which are substantial, are known. A comparison of these results with other measurements of potential evapotranspiration made under semi-arid conditions indicated a very considerable effect of the size of the irrigated area on the rate of water loss. It is suggested that this is one of the reasons why the recommended amounts of irrigation for optimum field practice are often substantially less than the estimated potential requirements.
Palavras-Chave: | Calculating potential; Calculo; Climatic data; Comparison of methods; Dado climatico; Metodo comparativo; Metodo de calcular; Potencial; Potencial de dados climaticos.
Thesagro: | Evapotranspiração.
Thesaurus Nal: | evapotranspiration.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)

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CPAP - (32657-1) - ADD - SP - -- - SP3025 -  - 3025 - DIS
CPAP - (32963-1) - ADD - SP - -- - SP3206 -  - 3206 - DIS