都市域の屋上面と近郊草地面における熱収支の比較

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タイトル ( jpn )
都市域の屋上面と近郊草地面における熱収支の比較
タイトル ( eng )
Comparison of Energy Balance between Rooftop Surface in Urban Area and Grass Plot Surface in Suburban Area
作成者
張 一平
福岡 義隆
高橋 日出男
寄与者 国立情報学研究所
収録物名
広島大学総合科学部紀要. IV, 理系編
Memoirs of the Faculty of Integrated Arts and Sciences, Hiroshima University. IV, Science reports
19
開始ページ 55
終了ページ 69
抄録
Heat balance and radiation balance at the rooftop surface in urban area and the grass plot surface in suburban area of Hiroshima City were estimated on the basis of observation data in summer and winter. Difference in diurnal variation of energy balance between the rooftop surface and the grass plot surface was described preliminarily in this paper. As to the heat flux from the rooftop surface to the atmosphere, though the sensible heat flux is much larger than the latent heat flux in the afternoon, the latent heat flux is larger than the sensible heat flux in the morning. Therefore, the latent heat flux from the rooftop surface can not be disregarded. The sensible heat flux from the rooftop surface is larger than that from the grass plot surface during the daytime, which could cause higher temperature above the rooftop. Moreover, the heat flux into (daytime) / from (night) the inside of the building is larger than that into / from the soil of the grass plot especially in summer. This means that the heat storage of building is important for the energy balance of urban area in summer rather than in winter. Nighttime radiation cooling from the rooftop surface is stronger than that from the grass plot surface.
著者キーワード
energy balance
grass plot surface
latent heat flux
rooftop surface
sensible heat flux
NDC分類
地球科学・地学・地質学 [ 450 ]
言語
日本語
資源タイプ 紀要論文
出版者
広島大学総合科学部
発行日 1993-12-31
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
日付
[作成日] 2006-03-21
収録物識別子
[ISSN] 1340-8364
[NCID] AN10435936