EFFECT OF VEGETATION ON SURFACE-TEMPERATURE IN URBAN AND SUBURBAN AREAS IN WINTER

The effects of vegetation density on the surface temperatures in the urban and suburban areas of Tokyo Metropolis on a clear winter day are examined, based on daytime and nighttime images obtained from the Landsat TMs. In the urban area the effect of vegetation on the surface temperature is relatively small in the daytime. In the suburbs in the more vegetated places, the lower surface temperatures are observed during the daytime. In the urban area in the more vegetated places, the lower surface temperatures are observed during the nighttime. In the more vegetated places of the suburbs, the higher surface temperatures are observed during the nighttime. In the urban area the temperature ranges are small for scarcely vegetated places, large for abundantly vegetated places. In the more vegetated places of the suburbs, the smaller temperature ranges are observed.