Abstract
Ground-measured solar irradiation data has conventionally been used to evaluate the effects of solar thermal technologies. In Japan, since there are only 48 observation points for solar irradiation, it is difficult to evaluate these effects in areas that are far from observation points. In this study, we obtained solar irradiation time-series data with a high spatial resolution by correcting the satellite-based estimated solar irradiance data with ground-measured solar irradiation data. We analyzed the geographical characteristics of the solar irradiation using the corrected data and compared it with conventional ground-measured solar irradiation data. The results showed the usefulness of data utilization in high spatial resolution data.