Spatial and temporal distribution of reference crop evapotranspiration in Antalya conditions

Abstract

In this study, it was aimed to determine the temporal and spatial changes of reference crop evapotranspiration (ETo) values in Antalya which has high agricultural potential. For this purpose, climate parameters measured by 20 meteorological stations were selected. 15 out of meteorological stations in the provinces and districts of Antalya were selected and the other 5 meteorological stations in the surrounding province an d district centers were selected to form the reference point. CROPWAT software developed by FAO was used to calculate ETo values using long-term data obtained from these meteorological stations. ArcGIS software was used to generate the necessary maps by evaluating ETo values obtained temporally and spatially. In the absence of these instantaneous climatic data, these tables and maps created with the help of long-term climatic data can be used safely to determine ETo for irrigation scheduling.

Keywords

• Geographical information systems
• FAO Penman-Monteith Equation
• Reference crop evapotranspiration
• Spline