abstract the present study is attempted to present the minimum required meteorological parameters for reference evapotranspiration estimation at hamedan region of iran from 1997 to 1998. employing pierson test, six meteorological parameters which are used by penman-montieth fao-56 method including maximum and minimum air temperature, maximum and minimum relative humidity, wind speed and daily s...

Evapotranspiration (ET) is a significant aspect of the hydrologic cycle, notably in irrigated agriculture. Direct approaches for estimating reference evapotranspiration (ET0) are either difficult or need large number inputs that not always available from meteorological stations. Over 6-year period (2006–2011), this study compares Feed Forward Neural Network (FFNN), Radial Basis Function (RBFNN)...

Abstract Evapotranspiration is a key variable for hydrologic, climatic, agricultural, and environmental studies. Given the non-availability of economically technically easy to implement direct measurement methods, evapotranspiration estimated primarily through application empirical regression models, machine learning algorithms that incorporate conventional meteorological variables. While FAO-5...

References 1. Reynolds BC, Penman DM, Howatson AG, Jackson LA, Skeoch CH. Multifocal multi-organ ischaemia and infarction in a preterm baby due to maternal intravenous cocaine use: a case report. J Med Case Rep. 2009;3:9324. 2. Reynolds BC, Penman DM, Howatson AG, Jackson LA, Skeoch CH. Multifocal multi-organ ischaemia and infarction in a preterm baby due to maternal intravenous cocaine use: a ...

The precise selection of appropriate crops that are compatible with the soil and crop water requirements (CWR) in a particular area is necessary for effective land management. A study was conducted to ascertain agricultural few chosen Sangareddy District Telangana. include Rice, Sugarcane, Soybean, Maize, Cotton, Black gram, Green Bengal gram. Using meteorological data from past 10 years stored...

Abstract This study applies three methods, Gene Expression Programming (GEP), M5 tree (M5T) model and optimized Artificial Neural Network by Genetic Algorithm (ANN-GA) for estimation of reference evapotranspiration in Ahvaz Dezful the southwest Iran. Comparison between results FAO Penman - Monteith (FPM) method mentioned methods shows that ANN-GA with Levenberg-Marquardt training is best M5T se...

The recommended Penman±Monteith reference crop evapotranspiration (ET0) with derived crop coef®cients (Kc) from the phenomenological stages of Acala cotton is used to estimate the crop water requirements (CWRs) of Acala cotton in the Gezira area of Sudan. The published basal crop factors of Acala cotton were used with Penman±Monteith equation as well to estimate ET. The results were compared wi...

in the current investigation, evaporation and transpiration potential were also estimated by means of fao penman- monteith evapotranspiration estimation method and deviation from optimum percentage (dop) technique by climatic elements (min-max temperature, relative humidity, wind speed and radiation) during at least 10 years statistical period regarding sunflower phenological conditions in kurd...