Development of Global 30-minute grid Potential Evapotranspiration Data Set

Abstract

Evapotranspiration is a key element in climate related studies on all spatial and temporal scales. Recent studies have shown that evapotranspiration can be estimated with some degree of precision using semiempirical and analytical models. By this study, a method for the estimation of evapotranspiration using the available global data sets has been proposed.
Monthly global potential evapotranspiration (PET) on 30-minute latitude-longitude grid was estimated based on the Priestley-Taylor method using global data sets including air temperature, albedo, cloudiness, elevation, which are parts of Global Ecosystems Database supplied by NOAA-EPA.