Research Information System
2nd INTERNATIONAL CONFERENCE ON ADVANCES IN NATURAL AND APPLIED SCIENCES, ANTALYA, TURKEY, Antalya, Turkey, 18 - 21 April 2017, pp.189, (Summary Text)
Evapotranspiration (ET) is one of the most difficult processes in nature. The most accurate and reliable method to determine ET is lysimeters, which is difficult, expensive and timeconsuming. On the other hand, ET can be estimated using reference crop evapotranspiration (ETo) and crop coefficient easily. Many ETo equations using meteorological data have been developed. The most widely accepted equation for ETo is FAO56-Penman-Monteith (FAO56- PM) equation. However, FAO56-PM equation needs numerous meteorological data and is hard to measure for farmers. For this reason, equations which need less meteorological data have been gaining importance. Characteristic Mediterranean climate prevails in coastal areas of Antalya, Turkey. In the
present study, long term data (1985 to 2015) obtained from meteorological stations were used to compute ETo in Antalya. Eight different ETo equations (Penman Monteith, Penman 1963, FAO 24 Penman, Hargreaves, Turc, Priestly-Taylor, FAO 24 Pan, Christiansen Pan) were compared with FAO56-PM. It was shown that the Turc equation gives results close to PM equation.