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	Provedor de dados REA (1) AGRIAMBI (1) Autor Cunha,Fernando F. da (2) Dias,Santos H. B. (2) Althoff,Daniel (1) Ferreira,Lucas B. (1) Filgueiras,Roberto (1) Mantovani,Everardo C. (1) Santos,Jannaylton É. O. (1) Silva,Gustavo H. da (1) Mais... Palavra-chave Energy balance (1) FAO-Penman-Monteith (1) Irrigated areas (1) Irrigation management (1) Missing data (1) Modeling (1) NDVI (1) Remote sensing (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2019 (1) 2018 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última SENSITIVITY OF EVAPOTRANSPIRATION ESTIMATED BY ORBITAL IMAGES UNDER INFLUENCE OF SURFACE TEMPERATURE REA Filgueiras,Roberto; Mantovani,Everardo C.; Althoff,Daniel; Dias,Santos H. B.; Cunha,Fernando F. da. ABSTRACT Surface temperature (Ts) is a determining factor to obtain energy balance parameters, being relevant to understand the influence of this variable on the estimation of evapotranspiration. Thus, the objective of this study was to simulate errors in Ts estimation to verify the consequences of actual evapotranspiration (ETa) estimated by the SAFER (Simple Algorithm for Evapotranspiration Retrieving) model. For this, an image of the Landsat-8 satellite was used to induce errors from 0.2K to 10K in the variable Ts, allowing verifying the consequences in the ETa data. After the estimations of Ts and ETa, the quantitative consequences and dynamics of Ts impact on the ETa data were verified along the different land uses in the study area. The results... Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy balance; Irrigated areas; Remote sensing; NDVI. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000800023 Performance of different methods for reference evapotranspiration estimation in Jaíba, Brazil AGRIAMBI Silva,Gustavo H. da; Dias,Santos H. B.; Ferreira,Lucas B.; Santos,Jannaylton É. O.; Cunha,Fernando F. da. ABSTRACT FAO Penman-Monteith (FO-PM) is considered the standard method for the estimation of reference evapotranspiration (ET0) but requires various meteorological data, which are often not available. The objective of this work was to evaluate the performance of the FAO-PM method with limited meteorological data and other methods as alternatives to estimate ET0 in Jaíba-MG. The study used daily meteorological data from 2007 to 2016 of the National Institute of Meteorology’s station. Daily ET0 values were randomized, and 70% of these were used to determine the calibration parameters of the ET0 for the equations of each method under study. The remaining data were used to test the calibration against the standard method. Performance evaluation was based on... Tipo: Info:eu-repo/semantics/article Palavras-chave: Missing data; Modeling; Irrigation management; FAO-Penman-Monteith. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000200083 Registros recuperados: 2 Primeira ... 1 ... Última

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