Average rainfall estimation: methods performance comparison in the Brazilian semi-arid

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dc.creatorBarbalho, Fernando Duarte
dc.creatorSilva, Gabriela Nogueira Ferreira da
dc.creatorFormiga, Klebber Teodomiro Martins
dc.date.accessioned2018-03-21T11:51:42Z
dc.date.available2018-03-21T11:51:42Z
dc.date.issued2014-02
dc.description.resumoConsidering 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.pt_BR
dc.identifier.citationBARBALHO, 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.pt_BR
dc.identifier.doi10.4236/jwarp.2014.62014
dc.identifier.issn1945-3094
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/14091
dc.language.isoengpt_BR
dc.publisher.countryEstados unidospt_BR
dc.publisher.departmentEscola de Engenharia Civil e Ambiental - EECA (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectAverage rainfallpt_BR
dc.subjectInterpolation techniquespt_BR
dc.subjectMultiquadric equationspt_BR
dc.subjectReciprocal distance squared methodpt_BR
dc.subjectSemiarid rainfallpt_BR
dc.subjectThiessen’s methodpt_BR
dc.titleAverage rainfall estimation: methods performance comparison in the Brazilian semi-aridpt_BR
dc.typeArtigopt_BR

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