Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.

Detalhes bibliográficos
Autor(a) principal: De Lacerda, Zilda C.
Data de Publicação: 2015
Outros Autores: Turco, José E.P. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v35n1p27-38/2015
http://hdl.handle.net/11449/190692
Resumo: One approach to verify the adequacy of estimation methods of reference evapotranspiration is the comparison with the Penman-Monteith method, recommended by the United Nations of Food and Agriculture Organization - FAO, as the standard method for estimating ET0. This study aimed to compare methods for estimating ET0, Makkink (MK), Hargreaves (HG) and Solar Radiation (RS), with Penman-Monteith (PM). For this purpose, we used daily data of global solar radiation, air temperature, relative humidity and wind speed for the year 2010, obtained through the automatic meteorological station, with latitude 18° 91' 66 S, longitude 48° 25' 05 W and altitude of 869m, at the National Institute of Meteorology situated in the Campus of Federal University of Uberlandia - MG, Brazil. Analysis of results for the period were carried out in daily basis, using regression analysis and considering the linear model y = ax, where the dependent variable was the method of Penman-Monteith and the independent, the estimation of ET0 by evaluated methods. Methodology was used to check the influence of standard deviation of daily ET0 in comparison of methods. The evaluation indicated that methods of Solar Radiation and Penman-Monteith cannot be compared, yet the method of Hargreaves indicates the most efficient adjustment to estimate ETo.
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spelling Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.Métodos de estimativa da evapotranspiração de referência (ETo), para Uberlândia – MGpenman-monteithhargreavesmakkinksolar radiationpenman-monteithhargreavesmakkinkradiação solarOne approach to verify the adequacy of estimation methods of reference evapotranspiration is the comparison with the Penman-Monteith method, recommended by the United Nations of Food and Agriculture Organization - FAO, as the standard method for estimating ET0. This study aimed to compare methods for estimating ET0, Makkink (MK), Hargreaves (HG) and Solar Radiation (RS), with Penman-Monteith (PM). For this purpose, we used daily data of global solar radiation, air temperature, relative humidity and wind speed for the year 2010, obtained through the automatic meteorological station, with latitude 18° 91' 66 S, longitude 48° 25' 05 W and altitude of 869m, at the National Institute of Meteorology situated in the Campus of Federal University of Uberlandia - MG, Brazil. Analysis of results for the period were carried out in daily basis, using regression analysis and considering the linear model y = ax, where the dependent variable was the method of Penman-Monteith and the independent, the estimation of ET0 by evaluated methods. Methodology was used to check the influence of standard deviation of daily ET0 in comparison of methods. The evaluation indicated that methods of Solar Radiation and Penman-Monteith cannot be compared, yet the method of Hargreaves indicates the most efficient adjustment to estimate ETo.Uma forma de verificar a adequação de métodos de estimativa da evapotranspiração de referência (ETo) é a comparação com o método de Penman-Monteith, recomendado pela Organização das Nações Unidas para Alimentação e Agricultura – FAO, como método-padrão para estimativa da ETo. Este estudo teve por objetivo comparar os métodos de estimativa da ETo, Makkink (MK), Hargreaves (HG) e Radiação Solar (RS), com o método de Penman-Monteith (PM). Para tanto, utilizaram-se dados diários de radiação solar global, velocidade do vento, temperatura e umidade relativa do ar para o ano de 2010, obtidos na estação meteorológica automática, com latitude de 18º91’66”S, longitude de 48º25’05”W e altitude de 869 m, do Instituto Nacional de Meteorologia, instalado no Câmpus da Universidade Federal de Uberlândia - MG. As análises dos resultados foram feitas para o período diário, utilizando-se da análise de regressão linear y = a x, na qual a variável dependente foi o método de Penman-Monteith, e a independente, as estimativas da ETo pelos métodos avaliados. Utilizou-se da metodologia que verifica a influência do desvio-padrão diário da ETo na comparação dos métodos estudados. Os métodos de Radiação Solar e Penman-Monteith não podem ser comparados, já o método de Hargreaves indica ajuste mais eficiente para a estimativa da ETo.Instituto Federal do Triângulo Mineiro - IFTM, Campus UberlândiaDepartamento de Engenharia Rural, UNESPUNESP Departamento de Engenharia RuralAssociação Brasileira de Engenharia AgrícolaInstituto Federal do Triângulo Mineiro - IFTMUniversidade Estadual Paulista (Unesp)De Lacerda, Zilda C.Turco, José E.P. [UNESP]2018-12-11T16:38:31Z2015-08-26T19:21:43Z2018-12-11T16:38:31Z2015-08-26T19:21:43Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article27-38application/pdfhttp://dx.doi.org/10.1590/1809-4430-Eng.Agric.v35n1p27-38/2015Engenharia Agrícola, v. 35, n. 1, p. 27-38, 2015.1808-43890100-6916http://hdl.handle.net/11449/19069210.1590/1809-4430-Eng.Agric.v35n1p27-38/2015S0100-691620150001000272-s2.0-84929616020S0100-69162015000100027.pdfScopusSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEngenharia Agrícola0.3870,305info:eu-repo/semantics/openAccess2024-01-02T06:16:39Zoai:repositorio.unesp.br:11449/190692Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:53:59.193033Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.
Métodos de estimativa da evapotranspiração de referência (ETo), para Uberlândia – MG
title Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.
spellingShingle Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.
De Lacerda, Zilda C.
penman-monteith
hargreaves
makkink
solar radiation
penman-monteith
hargreaves
makkink
radiação solar
title_short Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.
title_full Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.
title_fullStr Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.
title_full_unstemmed Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.
title_sort Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG.
author De Lacerda, Zilda C.
author_facet De Lacerda, Zilda C.
Turco, José E.P. [UNESP]
author_role author
author2 Turco, José E.P. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Instituto Federal do Triângulo Mineiro - IFTM
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv De Lacerda, Zilda C.
Turco, José E.P. [UNESP]
dc.subject.por.fl_str_mv penman-monteith
hargreaves
makkink
solar radiation
penman-monteith
hargreaves
makkink
radiação solar
topic penman-monteith
hargreaves
makkink
solar radiation
penman-monteith
hargreaves
makkink
radiação solar
description One approach to verify the adequacy of estimation methods of reference evapotranspiration is the comparison with the Penman-Monteith method, recommended by the United Nations of Food and Agriculture Organization - FAO, as the standard method for estimating ET0. This study aimed to compare methods for estimating ET0, Makkink (MK), Hargreaves (HG) and Solar Radiation (RS), with Penman-Monteith (PM). For this purpose, we used daily data of global solar radiation, air temperature, relative humidity and wind speed for the year 2010, obtained through the automatic meteorological station, with latitude 18° 91' 66 S, longitude 48° 25' 05 W and altitude of 869m, at the National Institute of Meteorology situated in the Campus of Federal University of Uberlandia - MG, Brazil. Analysis of results for the period were carried out in daily basis, using regression analysis and considering the linear model y = ax, where the dependent variable was the method of Penman-Monteith and the independent, the estimation of ET0 by evaluated methods. Methodology was used to check the influence of standard deviation of daily ET0 in comparison of methods. The evaluation indicated that methods of Solar Radiation and Penman-Monteith cannot be compared, yet the method of Hargreaves indicates the most efficient adjustment to estimate ETo.
publishDate 2015
dc.date.none.fl_str_mv 2015-08-26T19:21:43Z
2015-08-26T19:21:43Z
2015-01-01
2018-12-11T16:38:31Z
2018-12-11T16:38:31Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v35n1p27-38/2015
Engenharia Agrícola, v. 35, n. 1, p. 27-38, 2015.
1808-4389
0100-6916
http://hdl.handle.net/11449/190692
10.1590/1809-4430-Eng.Agric.v35n1p27-38/2015
S0100-69162015000100027
2-s2.0-84929616020
S0100-69162015000100027.pdf
url http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v35n1p27-38/2015
http://hdl.handle.net/11449/190692
identifier_str_mv Engenharia Agrícola, v. 35, n. 1, p. 27-38, 2015.
1808-4389
0100-6916
10.1590/1809-4430-Eng.Agric.v35n1p27-38/2015
S0100-69162015000100027
2-s2.0-84929616020
S0100-69162015000100027.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Engenharia Agrícola
0.387
0,305
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 27-38
application/pdf
dc.publisher.none.fl_str_mv Associação Brasileira de Engenharia Agrícola
publisher.none.fl_str_mv Associação Brasileira de Engenharia Agrícola
dc.source.none.fl_str_mv Scopus
SciELO
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129371253243904

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