Comparative Study of Methods for Estimating Evapotranspiration Reference in ParanaAba City, Brazil

Comparative Study of Methods for Estimating Evapotranspiration Reference in ParanaAba City, Brazil

Fernando Franca Da Cunha

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Thiago Ramos Da Silva

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Arthur Ribeiro Ximenes

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Rafael Oliveira Batista

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Universidade Federal dos Vales do Jequitinhonha e Mucuri

Comparative Study of Methods for Estimating Evapotranspiration Reference in ParanaAba City, Brazil

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Abstract

This study aimed to was evaluating the performance of 30 methods to estimate reference evapotranspiration (ET0) to the city of Paranaíba, Brazil. The meteorological data was removed from National Institute of Meteorology, on the period of six year (March 2008 to February 2014). The method taken as standard was Penman-Monteith-FAO56 and the comparison of results was by the coefficients of determination (r²), coefficients “a” and “b” of the linear regressions, estimate of standard-error, Willmott’s index of agreement (d), Pearson correlation coefficient (r), and reliable coefficient (c). The better methods to ET0 estimate was: Penman-Original, Stephens-Stewart, Priestley-Taylor, Hicks-Hess, Turc, Liquid-Radiation, Thornthwaite-Modified, Temperature-Radiation, Penman-FAO24, Abtew and Camargo. The Camargo method should be preferred when only air temperatures data have. The methods Blaney-Criddle-FAO24 and Hamon should receive calibration for be utilized on the estimate of ET0 in Paranaíba city.

References

12 Cites in Article

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Fernando Franca Da Cunha. 2015. \u201cComparative Study of Methods for Estimating Evapotranspiration Reference in ParanaAba City, Brazil\u201d. Global Journal of Human-Social Science - B: Geography, Environmental Science & Disaster Management GJHSS-B Volume 15 (GJHSS Volume 15 Issue B1).

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GJHSS Volume 15 Issue B1

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Journal Specifications

Crossref Journal DOI 10.17406/GJHSS

Print ISSN 0975-587X

e-ISSN 2249-460X

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GJHSS-B Classification FOR Code: 960301

Submission ReceivedSeptember 11, 2015
Peer Review Double Blind
Handling Editor
Accepted October 3, 2015
Published October 15, 2015

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v1.2

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March 3, 2015

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Article Matrices

Total Score: 104

Country: Brazil

Subject: Global Journal of Human-Social Science - B: Geography, Environmental Science & Disaster Management

Authors: Fernando Franca Da Cunha, Thiago Ramos Da Silva, Arthur Ribeiro Ximenes, Rafael Oliveira Batista (PhD/Dr. count: 0)

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Total Views: 4644

Total Downloads: 2326

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