都市の熱環境制御手法に関する研究 （第２報）

Abstract

Urbanization induces the increase of energy consumption in cities. It also alters the land use and cover in urban areas. Combination of these changes results in the temperature increase in cities, and thereby cause the increasing demand of energy required for air conditioning especially in summer. Thus, it is imperative to reexamine the physical structure of the cities with a view to alleviating the heat-island phenomena caused by urbanization. For this purpose, this study aims to establish the relationship between the urban thermal structure and the parameters specifying the land use pattern of the area under consideration (albedo, roughness length, relative humidity, and heat capacity). The analysis is based on an energy budget model. For Fukuoka City area, surface temperature estimated by the model is compared with the infrared surface temperatures data obtained from satellites (NOAA). A relatively good correlation was found between them, but further analysis must be made to achieve a better agreement.