
Keywords: پنمن-مونتهث; ET; Evapotranspiration; FAO; Food and Agriculture Organization; GS; Raumberg-Gumpenstein; HY-13/14; hydrological years 2013/2014; HY-14/15; hydrological years 2014/2015; MAMJJA; Spring to summer period, starting from March until August; P; Precipitation;