ESTIMATION OF GLOBE TEMPERATURE USING A RADIATION MODEL AND COMPARISON WITH MOBILE OBSERVATION IN URBAN AREA

Abstract

 In this study, we used a radiation model called the solar and longwave environmental irradiance geometory(SOLWEIG) to reproduce the thermal environment within an urban district, and compared with the data from mobile observation in terms of globe-temperature (Tg) which is calculated from Mean Radiation Temperature (MRT) and Sky View Factor (SVF) in the model. We confirmed poor reproducibility of Tg in spite of accurate calculation of SVF in the model, if a constant air temperature and global radiation are used for entire domain. Instead, we replaced these data with those obtained from observation. It resulted the model value almost caught the variation of observational result for Tg.