[PDF] Top 20 Calibration methods for the Hargreaves-Samani equation
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Calibration methods for the Hargreaves-Samani equation
... de Hargreaves- Samani pode ser utilizada como alternativa, contudo, requer uma calibração local para a obtenção de melhores ...de Hargreaves-Samani via regressão linear, via ajuste dos ... See full document
11
Avaliação de modelos de estimativa da evapotranspiração de referência em Sobral - CE
... empirical methods have been used to quantify evapotranspiration, given the diffi- culty of access of producers to the variables used by the standard ...Thus, the present work aimed to ... See full document
11
Creating long term gridded fields of reference evapotranspiration in Alpine terrain based on a re-calibrated Hargreaves method
... This equation is considered the most re- liable estimate and serves as a standard for comparisons with other methods (Allen et ...at the surface to derive ET0 and is therefore considered a ... See full document
28
COMPARATIVO DA ESTIMATIVA DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA POR DIFERENTES MÉTODOSPedro Rogerio GIONGO; Leandro GIONGO; Geber Barbosa de Albuquerque MOURA.
... had the objective of a comparative study for aplication of the empirical equations for estimating reference evapotranspiration (Etr) with data from a meteorological station located in municipality of Santa ... See full document
15
Parametrização da equação de Hargreaves e Samani para estimativa da evapotranspiração de referência no Estado do Ceará, Brasil.
... - The Hargreaves-Samani model is used in estimating reference evapotranspiration, and is very useful for irrigation management; it is considered to be of practical use as it uses meteorological ... See full document
8
Performance of methods for estimation of table beet water requirement in Alagoas
... requiring the adoption of technologies that promote increased irrigation ...efficiency. The objective of this study was to evaluate evapotranspiration models and to estimate the crop coefficients of ... See full document
5
Desempenho do irrigâmetro na estimativa da evapotranspiração de referência.
... test the “Irrigâmetro” to estimate the reference evapotranspiration in comparison to the Penman-Monteith method – FAO 56, and to compare its potential with the modified methods of ... See full document
8
Avaliação da evapotranspiração na microrregião do Seridó: uma contribuição metodológica
... evaluate the evapotranspiration in the Serido’s microrregion from point data for some municipalities to verify the potential of the regions ...evapotranspirometrics. The results ... See full document
120
Análise da sensibilidade dos componentes da equação de Hargreaves - Samani para a região de Bebedouro - SP
... subsidizes the calculations of water consumption in irrigated agriculture. The use of simpler methodologies are common however should be carefully ...studied. The present study evaluated the ... See full document
8
Performance Evaluation of Calibrated Hargreaves Method for Estimation of Ref- ET in a Hot and Humid Coastal Location in India
... The Hargreaves equation showed positive bias in the years 1992 to 1996 with the maximum MBE of ...in the year 1995, while in the years 1997 and 1998, the bias was ... See full document
16
Análise de métodos simplificados de estimativa da ETo e da sensibilidade das variáveis do cálculo da lâmina de irrigação para a cultura do café
... of the first stage, the estimate results were obtained based on the available climatic data of each study site, with help of the software ...among the main coffee-producing centers ... See full document
100
Evapotranspiração e coeficiente de cultura da cenoura irrigada no agreste alagoano
... through the collection of water of the drains obtained directly from drainage ...lysimeters. The cultivation coefficient was calculated by the relation between crop evapotranspiration and ... See full document
9
EVALUATION OF EMPIRICAL METHODS TO ESTIMATE REFERENCE EVAPOTRANSPIRATION IN UBERABA, STATE OF MINAS GERAIS, BRAZIL
... is the process of water loss of vegetated soil due to evaporation and transpiration, and it may be estimated by various empirical ...had the objective to carry out the evaluation of the ... See full document
14
Manejo da irrigação da pimenta malagueta (Capsicum frutenses L.) / Irrigation management of the chilli pepper (Capsicum frutenses L.)
... coefficients. The experiment was carried out from 27/04 to 09/09/2015, in the experimental area of Grupo Irriga, at Campus Arapiraca, ...find the pepper culture water consumption, the Kc was ... See full document
16
Estimativas, variabilidade e análise de tendência da evapotranspiração de referência em perímetros irrigados, no semiárido do nordeste brasileiro
... The variability / climate change has generated great concern worldwide, is one of the major issues as global warming, which can is affecting the availability of water resources in irrigated ...In ... See full document
111
Rev. bras. meteorol. vol.27 número3
... all, the paper highlights the feasibility of using empirical equations to estimate evapotranspiration in a rigorous manner providing an alternative when full hydrometeorological data is not available, which ... See full document
9
Evapotranspiration and crop coefficients of Moringa oleifera under semi-arid conditions in Pernambuco Célia S. dos Santos
... intense. The aim of this study was to estimate water requirements and crop coefficients in the different phenological stages of Moringa ...oleifera. The experiment was carried out from February to ... See full document
6
Estimativas da evapotranspiração de referência para o município de Apodi, RN
... achievement. The objective of this work was to compare mathematical models to determine the reference evapotranspiration for the municipality of Apodi, ...by the National Institute of ... See full document
12
Métodos de estimativa da evapotranspiração de referência diária para a microrregião de Garanhuns, PE.
... evaluate the performance of daily reference evapotranspiration estimated by the following methods: FAO-24 Radiation, Priestley-Taylor, Hargreaves- Samani, Camargo-71 and Blaney-Criddle, ... See full document
11
Methodology for the spatialisation of a reference evapotranspiration from SRTM data
... - The aim of this work was to develop a methodology for the spatialisation of mean monthly reference evapotranspiration for the State of Ceará, using the Hargreaves and Samani ... See full document
10
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