AN INTRIGUED ANALYSIS TO QUANTIFY THE CAUSES FOR URBAN HEAT ISLAND BY THE REVISED ARCHITECTURERBAN-SOI-UUBAN SIMULTANEOUS SIMULATION MODEL, RIVISED-AUSSSM. PART.2 QUANTITATIVE ANALYSIS BASED ON HUGE NUMERICAL EXPERIMENTS

摘要

The Urban Heat Island (UHI) resulting from social factors has become an object of great concern, and has been the subject of various types numerical research models. Incidentally, although concrete provisions from technical or general aspects are required to mitigate UHI, the great majority of previous studies have been concerned with the model itself. Looking at most previous studies, the results of numerical simulations are simply treated as examples. One of the reasons why the previous affluent studies have been relatively negative in regard to their effect on concrete discussion is that the model frame is too heavy to conduct systematic numerical experiments based on simulations involving huge numbers. And then, in the present paper we attempt to clarify the causes of UHI quantitatively. We use the Revised-AUSSSM in order to conduct extremely large numerical experiments. This allows us to identify, in a quantitative format, a group of causes leading to UHI. The causes of UHI are so complicated and so widely ranging that a numerical experiment should be considered in light of a certain strategic scheme In fact it is very important what sort of factors or levels should be taken account in the experiments. The Revised-AUSSSM is useful in that it has a light computing bad while still maintaining a relatively high level of accuracy. This allows us to observe many potential factors that contribute to UHI. In these numerical experiments we aim at to produce quantitative, useful, practical, and precise results upon which to base actual provisions against UHI.