This paper aimed to propose the development of a digital irrigimeter, in order assist water sizing, be used sprinkler irrigation process, different cultures. From realization market research, it was verified existence gap represented by individuals who have difficulty dimensioning water, irrigation. Thus, Hargreaves-Samani methodology, for calculations optimum amount precipitated, per square me...

Abstract The study aimed to evaluate the accuracy of empirical equations (Hargreaves-Samani; HS, Irmak; IR and Dalton; DT) multivariate linear regression models (MLR1–6) for estimating reference evapotranspiration (ET Ref ) in different climates Iran based on Köppen method including arid desert (Bw), semiarid (Bs), humid with mild winters (C), severe (D). For this purpose, climatic data 33 mete...

Excellent outcrops of the upper part “Continental Intercalaire” deposits occur in Gara Samani area, southern Algeria. These strata are recognised herein as belonging to Formation, which is composed Vertebrate-rich Sand Member, Sandstone Member and Méguidène Stratified Member. The first two members from a fluvial system last member corresponds an aeolian (dune interdune) system. They have preser...

Drought monitoring is a complicated issue as it requires multiple meteorological variables to monitor and anticipate drought accurately. Therefore, developing method that enables researchers, data scientists, planners comprehend mitigation policies more accurately essential. In this research, based on the concepts behind calculation of Standardized Precipitation Evapotranspiration Index (SPEI),...

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...

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...