NUMERICAL INVESTIGATION OF ANTHROPOGENIC HEAT EMISSION IMPACTS ON LARGE ASIAN CITIES

摘要

The contribution of anthropogenic heat (AH) to the surface energy budget is well known. However,further investigation of realistic AH emissions in cities and their interactions with its surrounding atmosphericenvironment is still limited. Furthermore, past studies are site-specific providing limited insightto general impacts of AH. In this study, a realistic, high-spatiotemporal AHE dataset was used assurface boundary input into a weather model. With monthly-representative typical diurnal climatic patternfrom 2006 to 2015 as lateral boundary, weather simulation of atmospheric environment of 15 largeAsian cities included in the world’s top 30 largest cities declared by the United Nations was conducted.Results suggest that the effect of AH per location is sensitive to the background climate. An empiricalequation is introduced to approximate the amount of temperature increase for any city of a given AH andbackground monthly temperature.