Results 1 to 10 of about 21,332 (192)
Uso da temperatura para cálculo do índice de seca de regiões produtoras de uva [PDF]
Revista Brasileira de Fruticultura, 2012 O Sistema de Classificação Climática Multicritérios Geovitícola (CCM), empregado na caracterização climática de regiões produtoras de uvas, é composto pelos índices Heliotérmico (IH), de Frio Noturno (IF) e de Seca (IS) sendo que este se baseia no ...
Marco Antônio Fonseca Conceição +2 more
doaj +4 more sources
Optimal Calibration of Evaporation Models against Penman–Monteith Equation [PDF]
Water, 2021 We present an approach for the calibration of simplified evaporation model parameters based on the optimization of parameters against the most complex model for evaporation estimation, i.e., the Penman–Monteith equation. This model computes the evaporation from several input quantities, such as air temperature, wind speed, heat storage, net radiation ...
Dagmar Dlouhá +2 more
openaire +2 more sources
Estimating Potential Evapotranspiration in Maranhão State Using Artificial Neural Networks [PDF]
Revista Brasileira de Meteorologia, 2020 The use of technology and planning in agricultural production is essential in Northeastern Brazil, which is the region of the country that most suffers from water shortage.
Klara Cunha de Meneses +3 more
doaj +2 more sources
Assessment of Artificial Neural Network through Drought Indices
Eng, 2022 Prediction of potential evapotranspiration (PET) using an artificial neural network (ANN) with a different network architecture is not uncommon. Most researchers select the optimal network using statistical indicators. However, there is still a gap to be
Smit Chetan Doshi +2 more
doaj +1 more source
Estimation methods of reference evapotranspiration (ETo) for Uberlândia -MG [PDF]
Engenharia Agrícola, 2015 One approach to verify the adequacy of estimation methods of reference evapotranspiration is the comparison with the Penman-Monteith method, recommended by the United Nations of Food and Agriculture Organization - FAO, as the standard method for ...
ZILDA C. DE LACERDA, JOSÉ E. P. TURCO
doaj +2 more sources
Ciência e Agrotecnologia, 2003 No interior de uma casa-de-vegetação, em Lavras, MG, conduziu-se um experimento, objetivando-se avaliar a demanda evaporativa do ar (ET) estimada pelos métodos do tanque Classe A e do atmômetro modificado da Soilcontrol, modelo JR 120, com a estimada ...
Adão Wagner Pêgo Evangelista +1 more
doaj +1 more source
Journal of Agrometeorology, 2020 Accurate estimation of evapotranspiration of rapeseed is essentially required for irrigation scheduling and water management. The present study was undertaken during 2015-16 and 2017-18 in ICR Farm, Assam Agricultural University, Jorhat to determine ...
ABHIJIT SARMA, KRISHNA BHARADWAJ
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Effects of Uncertainty in Climate Inputs on Simulated Evapotranspiration and Runoff in the Western Arctic [PDF]
, 2006 Hydrological models require accurate precipitation and air temperature inputs in order to adequately depict water fluxes and storages across Arctic regions.
Frolking, Steve +3 more
core +2 more sources
Comparative evaluation of different reference evapotranspiration models [PDF]
, 2017 The study was carried out to select best alternative method for the estimation of reference evapotranspi-ration (ET0). Accurate estimation of potential evapotranspiration is a necessary step in water resource management.
Arya, C. K. +5 more
core +2 more sources
Revista Brasileira de Engenharia Agrícola e Ambiental, 2008 Neste trabalho objetivou testar o Irrigâmetro para estimar a evapotranspiração de referência comparativamente com o método de Penman-Monteith - FAO 56, e confrontar o seu desempenho com os métodos Penman modificado - FAO 24, Radiação - FAO 24, tanque ...
Rubens A. Oliveira +4 more
doaj +1 more source