Urban Effects on Night Air Temperature in Hot-humid Climate

摘要

The diurnal air temperature variations were compared with the different places in Osaka area, and compared between weekday and holiday. The temperature difference in summer night between weekday and holiday was smaller than the temperature difference between at the city center and at the park. It seems that the main causes of the difference in summer night air temperature between at the city center and at the park are the heat storage of solar radiation on the pavements, rather than the artficial heat released.