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...

Several studies have projected increases in drought severity, extent and duration in many parts of the world under climate change. We examine sources of uncertainty arising from the methodological choices for the assessment of future drought risk in the continental US (CONUS). One such uncertainty is in the climate models' expression of evaporative demand (E0), which is not a direct climate mod...

the hargreaves-samani (hs) equation, which estimates reference evapotranspiration (et0) using only temperature as input, should be most suitable for et0 prediction based on weather forecasting data. in the current study, the hs equation is calibrated with daily et0 by the penman-monteith equation, and is evaluated to check the possibility of predicting daily et0 based on weather forecast data. ...

Resumo A radiação solar é uma variável climatológica amplamente utilizada em estudos climáticos e pode ser mensurada por meio de estações meteorológicas. Devido ao alto custo difícil manutenção dos equipamentos mensuração, possível estimá-la a partir modelos matemáticos. Assim, o presente estudo objetivou calibrar validar os parâmetros da equação ångström-Prescott Hargreaves & Samani para r...

We evaluated and compared the performance of simulated Angström-Prescott (AP) Hargreaves-Samani (HS) models on monthly annual timescales using generalized datasets covering entire West African region. The fitted AP model yielded more efficient parameters a = 0.366 b 0.459, whereas HS produced 0.216 coefficient based an timescale, which is suitable in region to coefficients recommended by Food A...