沿岸都市における海風が有する都市域の高温化現象の緩和効果に関する研究

概要

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In this paper, we carried out the field measurement in the urban district in Hiroshima City formed on the delta in Ohota River. We measured wind velocity and temperature in the sea wind in the summer. We showed the way of mitigation effect of high-temperature phenomenon of sea wind in the city. Results are as follows. In the east and west street, the temperature lowers in street near coastline and river. In the north and south street, the temperature lowers around the coastline, and the temperature rises on the street which rises with entering the inland. In the place that the width of the holm is narrow and that the distance between rivers is short, the low temperature has been formed to the inside in the delta. This seems to be for supplying the cool air for the air flow in which air flow which goes up on the river ascends the street. Since the inflow of cool air flow is inhibited, in the holm which is the biggest commercial district tall building, the high-temperature range is formed. In the east and west street, the temperature tends to lower with the increase of the wind velocity in spite of the distance from the coastline. This seems to be because cool sea wind and which is not heated air flow on the river have the mitigation effect for the high-temperature of urban area.
社団法人日本建築学会の論文
2008-03-30