Title of article :
A simple correlation to estimate global solar irradiation on a horizontal surface using METEOSAT satellite images
Author/Authors :
AKSOY, Bulent Turkish State Meteorological Service - Research Department, TURKEY , ENER RUSEN, Selmin Middle East Technical University - Department of Physics, TURKEY , AKINOGLU, Bulent Gultekin Middle East Technical University - Department of Physics, TURKEY
Abstract :
A simple quadratic correlation, which is obtained from a universal Angstr¨om-type quadratic relation, between daily horizontal global solar irradiation and satellite images is presented. The performance of this correlation is seen to be in the acceptable accuracy limits for daily estimates. In addition, by using data from 5 locations in Turkey, a linear correlation between the bright sunshine hours and satellite based cloud index is derived. Utilizing these 2 correlations, one can easily obtain spatial daily solar irradiation and sunshine duration maps for the regions with similar latitudes and climates of locations of interest
Keywords :
Bright sunshine duration , solar radiation , METEOSAT images , cloud index , Angstr¨om model
Journal title :
Turkish Journal of Engineering and Environmental Sciences
Journal title :
Turkish Journal of Engineering and Environmental Sciences
