Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/14091
Tipo do documento: Artigo
Título: Average rainfall estimation: methods performance comparison in the Brazilian semi-arid
Autor: Barbalho, Fernando Duarte
Silva, Gabriela Nogueira Ferreira da
Formiga, Klebber Teodomiro Martins
Resumo: Considering the rainfall’s importance in hydrological modeling, the objective of this study was the performance comparison, in convergence terms, of techniques often used to estimate the average rainfall over an area: Thies-sen Polygon (TP) Method; Reciprocal Distance Squared (RDS) Method; Kriging Method (KM) and Multiqua-dric Equations (ME) Method. The comparison was done indirectly, using GORE and BALANCE index to assess the convergence results from each method by increasing the rain gauges density in a region, through six scena-rios. The Coremas/Mãe D’Água Watershed employed as study area, with an area of 8385 km2, is situated on Brazilian semi-arid. The results showed the TP, as RDS and ME techniques to be employed successfully to ob-tain the average rainfall over an area, highlighting the MEM. On the other hand, KM, using two variograms models, had an unstable behavior, pointing the prior study of data and variogram’s choice as a need to practical applying.
Palavras-chave: Average rainfall
Interpolation techniques
Multiquadric equations
Reciprocal distance squared method
Semiarid rainfall
Thiessen’s method
País: Estados unidos
Unidade acadêmica: Escola de Engenharia Civil e Ambiental - EECA (RG)
Citação: BARBALHO, Fernando D.; SILVA, Gabriela F. N. da; FORMIGA, Klebber T. M. Average Rainfall Estimation: Methods Performance Comparison in the Brazilian Semi-Arid. Journal of Water Resource and Protection, Orlando, v. 6, n. 2, p. 97-103, Feb. 2014.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.4236/jwarp.2014.62014
Identificador do documento: 10.4236/jwarp.2014.62014
URI: http://repositorio.bc.ufg.br/handle/ri/14091
Data de publicação: Fev-2014
Aparece nas coleções:EECA - Artigos publicados em periódicos

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