Estimation of Regional Evapotranspiration using NOAA Data

In this paper. results of the application of the new method for estimating regional evapotranspiration rate using NOAA-AVHRR data to the areas of central Japan are presented. The method has the following advantages; 1) the estimation procedure is reasonably simple - based on a pixel of an area, 2) surface soil parameters and aerodynamic parameters need not be assumed, and 3) daily averaged values of evapotranspiration can be calculated from a pair of instantaneous, remotely sensed images. The results of the application at the areas show that the method has good potential but need more precise local meteorological data.