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ID 14786
file
title alternative
Assessment of thermal environment in Tokyo area using an energy budget model
creator
川又 孝太郎
玉井 信行
subject
heat island
land use
anthropogenic heat
thermal environment
heat budget model
NDC
Construction. Civil engineering
abstract
An energy budget model is developed to quantify the effects of the energy consumption and land conver on the surface air temperature in Tokyo metropolitan area. The model has several factors such as albedo, relative humidity, roughness height, heat capacity, and thermal diffusivity which take the values depending on the land use. The distribution and diurnal variation of anthropogenic heat release rate are given based on the limited data available.The simulated surface air temperature by the present model agrees favorably with the two set of AMeDAS data observed in mid-summer and winter with weak general wind. The analysis of heat transport process for each land use has shown that the air temperaature in urban areas increases due to the decrease in humidity, particularly in daytime. It is also shown that the increase of energy consumption enhances the air temperature level through the intensification of turbulent diffusion process.
journal title
環境システム研究
volume
Volume 20
start page
294
end page
298
date of issued
1992
publisher
土木学会
issn
0915-0390
ncid
language
jpn
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 1992 土木学会
department
Graduate School of Engineering