Abstract
Conventionally, people have been suffered from heat exhaustion when they do hard exercise under high temperature. However, recently, it occurs in daily life without hard exercise because of increasing temperature due to urbanization. The factors of damages to human body are radiation temperature, wind, and moisture as well as air temperature and wet bulb globe temperature (WBGT) is composed of the four factors and it shows the sensory temperature. In this study, we quantitatively estimate the cooling effect of canopy in summer by observing the temperatures and other meteorological data. The result quantitatively shows that WBGT depends on not only micro scale vegetation cover, but also 50m x 50m surrounding vegetation cover and surface condition.
