So far, various methods have been presented for determining reference crop evapotranspiration in different parts of the world. The most popular and prestigious of them are probably the combined methods of Penman family, modified Blany-Criddle, Hargreaves - Samani and thornthwaite. Due to lack of lysimeter data in many parts of Iran, presenting an equation according to the regional condition wit...

Estimated daily reference crop evapotranspiration (ETo) is normally used to determine the water requirement of crops using the crop factor method. Many ETo estimation methods have been developed for different types of climatic data, and the accuracy of these methods varies with climatic conditions. In this study, pair−wise comparisons were made between daily ETo estimated from eight different E...

Abdelaziz Boulesbaa,* Bing Huang, Kai Wang, Ming-Wei Lin, Masoud Mahjouri-Samani, Christopher Rouleau, Kai Xiao, Mina Yoon, Bobby Sumpter, Alexander Puretzky, and David Geohegan Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee, 37831, USA (Received 29 April 2015; revised manuscript received 28 August 2015; published 25 September ...

Solar radiation, which is used in hydrological modeling, agricultural, solar energy systems, and climatological studies, the most important element of reaching earth. The present study compared, performance two empirical equations -Angstrom Hargreaves-Samani equations- and, three machine learning models -Artificial Neural Networks (ANN), Support Vector Machine (SVM), Long Short-Term Memory (LST...

Abstract The Penman-Monteith equation is recommended for the estimation of reference evapotranspiration (ETo). However, it requires meteorological data that are commonly unavailable. Thus, this study evaluates artificial neural network (ANN), multivariate adaptive regression splines (MARS), and original calibrated Hargreaves-Samani (HS) temperature (PMT) equations daily ETo using temperature. T...

In this study, the effects of climate change on irrigation water requirement hazelnut trees were investigated in Central Italy. The meteorological variables considered precipitation, temperature, chilling units, and Standardized Precipitation Index (SPI) hydrological reference evapotranspiration (ET0) based soil balance. Climate data collected from eight stations for period 1974–2021, ET0 was e...