ANALYSIS OF SPATIAL FEATURES OF PREVIOUS SURFACE DISTRIBUTIONS THROUGH THE COMPARISON WITH THE NIGHTTIME AIR TEMPERATURES

Abstract

 Pervious surfaces are expected to contribute to the air temperature reduction against an urban heat island phenomenon. In this study, we tried to extract the spatial continuity of pervious surface distributions on a basis of the area of pervious surfaces. The impervious surface distributions derived from detailed land cover data were applied to spatial autocorrelation analysis so as to extract the spatial continuity. In addition, the relationship between the extracted results and the meteorological observation data was discussed. It was obvious that nighttime air temperatures around spatially continuous pervious surfaces tended to be lower than those in a reference range when the area of the pervious surfaces was larger than 9 ha.