PROCEEDINGS OF HYDRAULIC ENGINEERING
Online ISSN : 1884-9172
Print ISSN : 0916-7374
Mitigation Effects of Thermal Environment of Urban Area by Watering
Shuichi TSUCHIYATakuma KATOTaichi TEBAKARITadashi YAMADA
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2005 Volume 49 Pages 367-372

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Abstract

The social experiment was carried out for the purpose of the mitigation of the heat island effect by watering on August 18th to 25th. The microclimate observation has been carried out at watering area in Eastern Tokyo. As the results, the effect of the watering on the thermal environment in urban area was evaluated as decreasing effect on temperature. The following results were obtained; 1) The temperature variation in the daytime is included to be different every site because of the dispersion of surface temperature. 2) The air temperature in the experiment area is from 2 to 9 [degree] higher than temperature in thermometer shelter by the effect of long radiation. 3) The temperature decrease instantaneously when watering starts. 4) The temperature decreases 0.66 [degree] on average, 1.93 [degree] on maximum after the watering. 5) Total amount of decreasing temperature is decreased linearly by the distance from the point of watering.

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© by Japan Society of Civil Engineers
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