An Observation of the Climatic Effect of Watering on Paved Roads

Abstract

Heat environments in growing cities have been deteriorating due to artificial ground cover and anthropgenic heat. The authors focused on the watering of paved roads as an effective and feasible measure against the situation and observed its effect on the micro-climate of urban areas. The results showed that the differences in air temperature, globe temperature and relative humidity at two sites with and without watering were a maximum 1 degrees, 4 degrees and 4%, respectively. In addition, the estimated energy balance at the sites showed that considerable latent heat and lateral heat transport contributed to lowering the surface temperature of a paved road.