ABSTRACT
Aiming at assessing the performance of alternative methods to Penman-Monteith FAO56 for estimating the reference evapotranspiration (ETo) for Londrina, Paraná, Brazil, the methods temperature radiation, Hicks-Hess, Hargreaves-Samani (1982), Turc, Priestley-Taylor, Tanner-Pelton, Jensen-Haise, Makkink, modified Hargreaves, Stephens-Stewart, Abtew, global radiation, Ivanov, Lungeon, Hargreaves-Samani (1985), Benavides-Lopez, original Penman, Linacre, Blaney-Morin, Romanenko, Hargreaves (1974), McCloud, Camargo, Hamon, Kharrufa, McGuiness-Bordne, and Blaney-Criddle were compared to that standard method recommended by FAO. The estimations were correlated by linear regression and assessed by using the Persons correlation coefficient (r), concordance index (d), and performance index (c) using a set of meteorological data of approximately 40 years. The methods modified Hargreaves, Stephens-Stewart, Abtew, global radiation, Ivanov, Lungeon, Hargreaves-Samani (1985), Benavides-Lopez, original Penman, and Linacre should be avoided, as they did not present excellent results. The methods McCloud, Camargo, Hamon, Kharrufa, McGuinness-Bordne, Blaney-Criddle, Hargreaves (1974), Romanenko, and Blaney-Morin were classified as very bad, not being recommended. In contrast, the methods temperature radiation, Hicks-Hess, Hargreaves-Samani (1982), Turc, Priestley-Taylor, Tenner-Pelton, Jensen-Haise, and Makkink presented excellent performance indices and can beapplied in the study region.(AU)
Com objetivo de avaliar o desempenho de métodos alternativos ao Penmam-Monteith-FAO56 para a estimativa da evapotranspiração de referência (ETo) para a cidade de Londrina, Paraná, foram comparados a este método padrão recomendado pela FAO os seguintes métodos: Radiação-Temperatura, Hicks-Hess, Hargreaves-Samani-1982,Turc, Priestley-Taylor, Tanner-pelton, Jensen-Haise,Makkink, Hargreaves-Modificado, Stephens-Stewart, Abtew, Radiação-Global, Ivanov, Lungeon, Hargreaves-Samani-1985, Banavides-Lopez, Penman-Original, Linacre, Blaney-Morin, Romanenko, Hargreaves-1974, McCloud, Camargo, Hamon, Kharrufa, McGuiness-Bordne e Blaney-Criddle. Utilizando um conjunto de dados meteorológicos de aproximadamente 40 anos, as estimativas foram correlacionadas por regressão linear e avaliadas através do coeficiente de correlação de Person r, índice de concordância d e do índice de desempenho c. Os métodos Hargreaves Modificado, Stephens-Stewart, Abtew, Radiação-Global, Ivanov, Lungeon, Hargreaves-Samani-1985, Banvides-Lopez, Penman-Original e Linacre devem ser evitados, pois não apresentaram resultados ótimos. Classificado como péssimo os métodos McCloud, Camargo, Hamon, Kharrufa, McGuinness-Bordne, Blaney-Criddle, Hargreaves-1974, Romanenko e Blaney-Morin não são recomendados. E os métodos Radiação-Temperatura, Hicks-Hess, Hargreaves-Samani-1982, Turc, Priestley-Taylor, Tenner-Pelton, Jensen-Haise e Makkink apresentaram índices de desempenhos ótimos, e podem ser aplicados para a região em estudo.(AU)
Subject(s)
Evapotranspiration/analysis , Evapotranspiration/methods , Statistics as TopicABSTRACT
Aiming at assessing the performance of alternative methods to Penman-Monteith FAO56 for estimating the reference evapotranspiration (ETo) for Londrina, Paraná, Brazil, the methods temperature radiation, Hicks-Hess, Hargreaves-Samani (1982), Turc, Priestley-Taylor, Tanner-Pelton, Jensen-Haise, Makkink, modified Hargreaves, Stephens-Stewart, Abtew, global radiation, Ivanov, Lungeon, Hargreaves-Samani (1985), Benavides-Lopez, original Penman, Linacre, Blaney-Morin, Romanenko, Hargreaves (1974), McCloud, Camargo, Hamon, Kharrufa, McGuiness-Bordne, and Blaney-Criddle were compared to that standard method recommended by FAO. The estimations were correlated by linear regression and assessed by using the Persons correlation coefficient (r), concordance index (d), and performance index (c) using a set of meteorological data of approximately 40 years. The methods modified Hargreaves, Stephens-Stewart, Abtew, global radiation, Ivanov, Lungeon, Hargreaves-Samani (1985), Benavides-Lopez, original Penman, and Linacre should be avoided, as they did not present excellent results. The methods McCloud, Camargo, Hamon, Kharrufa, McGuinness-Bordne, Blaney-Criddle, Hargreaves (1974), Romanenko, and Blaney-Morin were classified as very bad, not being recommended. In contrast, the methods temperature radiation, Hicks-Hess, Hargreaves-Samani (1982), Turc, Priestley-Taylor, Tenner-Pelton, Jensen-Haise, and Makkink presented excellent performance indices and can beapplied in the study region.
Com objetivo de avaliar o desempenho de métodos alternativos ao Penmam-Monteith-FAO56 para a estimativa da evapotranspiração de referência (ETo) para a cidade de Londrina, Paraná, foram comparados a este método padrão recomendado pela FAO os seguintes métodos: Radiação-Temperatura, Hicks-Hess, Hargreaves-Samani-1982,Turc, Priestley-Taylor, Tanner-pelton, Jensen-Haise,Makkink, Hargreaves-Modificado, Stephens-Stewart, Abtew, Radiação-Global, Ivanov, Lungeon, Hargreaves-Samani-1985, Banavides-Lopez, Penman-Original, Linacre, Blaney-Morin, Romanenko, Hargreaves-1974, McCloud, Camargo, Hamon, Kharrufa, McGuiness-Bordne e Blaney-Criddle. Utilizando um conjunto de dados meteorológicos de aproximadamente 40 anos, as estimativas foram correlacionadas por regressão linear e avaliadas através do coeficiente de correlação de Person r, índice de concordância d e do índice de desempenho c. Os métodos Hargreaves Modificado, Stephens-Stewart, Abtew, Radiação-Global, Ivanov, Lungeon, Hargreaves-Samani-1985, Banvides-Lopez, Penman-Original e Linacre devem ser evitados, pois não apresentaram resultados ótimos. Classificado como péssimo os métodos McCloud, Camargo, Hamon, Kharrufa, McGuinness-Bordne, Blaney-Criddle, Hargreaves-1974, Romanenko e Blaney-Morin não são recomendados. E os métodos Radiação-Temperatura, Hicks-Hess, Hargreaves-Samani-1982, Turc, Priestley-Taylor, Tenner-Pelton, Jensen-Haise e Makkink apresentaram índices de desempenhos ótimos, e podem ser aplicados para a região em estudo.
Subject(s)
Statistics as Topic , Evapotranspiration/analysis , Evapotranspiration/methodsABSTRACT
Aiming at assessing the performance of alternative methods to Penman-Monteith FAO56 for estimating the reference evapotranspiration (ETo) for Londrina, Paraná, Brazil, the methods temperature radiation, Hicks-Hess, Hargreaves-Samani (1982), Turc, Priestley-Taylor, Tanner-Pelton, Jensen-Haise, Makkink, modified Hargreaves, Stephens-Stewart, Abtew, global radiation, Ivanov, Lungeon, Hargreaves-Samani (1985), Benavides-Lopez, original Penman, Linacre, Blaney-Morin, Romanenko, Hargreaves (1974), McCloud, Camargo, Hamon, Kharrufa, McGuiness-Bordne, and Blaney-Criddle were compared to that standard method recommended by FAO. The estimations were correlated by linear regression and assessed by using the Persons correlation coefficient (r), concordance index (d), and performance index (c) using a set of meteorological data of approximately 40 years. The methods modified Hargreaves, Stephens-Stewart, Abtew, global radiation, Ivanov, Lungeon, Hargreaves-Samani (1985), Benavides-Lopez, original Penman, and Linacre should be avoided, as they did not present excellent results. The methods McCloud, Camargo, Hamon, Kharrufa, McGuinness-Bordne, Blaney-Criddle, Hargreaves (1974), Romanenko, and Blaney-Morin were classified as very bad, not being recommended. In contrast, the methods temperature radiation, Hicks-Hess, Hargreaves-Samani (1982), Turc, Priestley-Taylor, Tenner-Pelton, Jensen-Haise
Com objetivo de avaliar o desempenho de métodos alternativos ao Penmam-Monteith-FAO56 para a estimativa da evapotranspiração de referência (ETo) para a cidade de Londrina, Paraná, foram comparados a este método padrão recomendado pela FAO os seguintes métodos: Radiação-Temperatura, Hicks-Hess, Hargreaves-Samani-1982,Turc, Priestley-Taylor, Tanner-pelton, Jensen-Haise,Makkink, Hargreaves-Modificado, Stephens-Stewart, Abtew, Radiação-Global, Ivanov, Lungeon, Hargreaves-Samani-1985, Banavides-Lopez, Penman-Original, Linacre, Blaney-Morin, Romanenko, Hargreaves-1974, McCloud, Camargo, Hamon, Kharrufa, McGuiness-Bordne e Blaney-Criddle. Utilizando um conjunto de dados meteorológicos de aproximadamente 40 anos, as estimativas foram correlacionadas por regressão linear e avaliadas através do coeficiente de correlação de Person r, índice de concordância d e do índice de desempenho c. Os métodos Hargreaves Modificado, Stephens-Stewart, Abtew, Radiação-Global, Ivanov, Lungeon, Hargreaves-Samani-1985, Banvides-Lopez, Penman-Original e Linacre devem ser evitados, pois não apresentaram resultados ótimos. Classificado como péssimo os métodos McCloud, Camargo, Hamon, Kharrufa, McGuinness-Bordne, Blaney-Criddle, Hargreaves-1974, Romanenko e Blaney-Morin não são recomendados. E os métodos Radiação-Temperatura, Hicks-Hess, Hargreaves-Samani-1982, Turc, Priestley-Taylor, Tenner-Pelton, Je
ABSTRACT
Aiming at assessing the performance of alternative methods to Penman-Monteith FAO56 for estimating the reference evapotranspiration (ETo) for Londrina, Paraná, Brazil, the methods temperature radiation, Hicks-Hess, Hargreaves-Samani (1982), Turc, Priestley-Taylor, Tanner-Pelton, Jensen-Haise, Makkink, modified Hargreaves, Stephens-Stewart, Abtew, global radiation, Ivanov, Lungeon, Hargreaves-Samani (1985), Benavides-Lopez, original Penman, Linacre, Blaney-Morin, Romanenko, Hargreaves (1974), McCloud, Camargo, Hamon, Kharrufa, McGuiness-Bordne, and Blaney-Criddle were compared to that standard method recommended by FAO. The estimations were correlated by linear regression and assessed by using the Persons correlation coefficient (r), concordance index (d), and performance index (c) using a set of meteorological data of approximately 40 years. The methods modified Hargreaves, Stephens-Stewart, Abtew, global radiation, Ivanov, Lungeon, Hargreaves-Samani (1985), Benavides-Lopez, original Penman, and Linacre should be avoided, as they did not present excellent results. The methods McCloud, Camargo, Hamon, Kharrufa, McGuinness-Bordne, Blaney-Criddle, Hargreaves (1974), Romanenko, and Blaney-Morin were classified as very bad, not being recommended. In contrast, the methods temperature radiation, Hicks-Hess, Hargreaves-Samani (1982), Turc, Priestley-Taylor, Tenner-Pelton, Jensen-Haise
Com objetivo de avaliar o desempenho de métodos alternativos ao Penmam-Monteith-FAO56 para a estimativa da evapotranspiração de referência (ETo) para a cidade de Londrina, Paraná, foram comparados a este método padrão recomendado pela FAO os seguintes métodos: Radiação-Temperatura, Hicks-Hess, Hargreaves-Samani-1982,Turc, Priestley-Taylor, Tanner-pelton, Jensen-Haise,Makkink, Hargreaves-Modificado, Stephens-Stewart, Abtew, Radiação-Global, Ivanov, Lungeon, Hargreaves-Samani-1985, Banavides-Lopez, Penman-Original, Linacre, Blaney-Morin, Romanenko, Hargreaves-1974, McCloud, Camargo, Hamon, Kharrufa, McGuiness-Bordne e Blaney-Criddle. Utilizando um conjunto de dados meteorológicos de aproximadamente 40 anos, as estimativas foram correlacionadas por regressão linear e avaliadas através do coeficiente de correlação de Person r, índice de concordância d e do índice de desempenho c. Os métodos Hargreaves Modificado, Stephens-Stewart, Abtew, Radiação-Global, Ivanov, Lungeon, Hargreaves-Samani-1985, Banvides-Lopez, Penman-Original e Linacre devem ser evitados, pois não apresentaram resultados ótimos. Classificado como péssimo os métodos McCloud, Camargo, Hamon, Kharrufa, McGuinness-Bordne, Blaney-Criddle, Hargreaves-1974, Romanenko e Blaney-Morin não são recomendados. E os métodos Radiação-Temperatura, Hicks-Hess, Hargreaves-Samani-1982, Turc, Priestley-Taylor, Tenner-Pelton, Je