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1992 Fiscal Year Final Research Report Summary

The Effect of Ground Pavement on the Urban Thermal Environment

Research Project

Project/Area Number 03650415
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Hydraulic engineering
Research InstitutionSaitama University

Principal Investigator

ASAEDA Takashi  Saitama University, Department of Civil & Environmental Engineering, Associate Professor, 工学部, 助教授 (40134332)

Co-Investigator(Kenkyū-buntansha) KUBOTA Yoichi  Saitama University, Department of Cvil & Environmental Engineering, Associate Pr, 工学部, 助教授 (50134333)
WATANABE Kunio  Saitama University, Hydroscience Laboratory, Associate Professor, 工学部, 助教授 (00008880)
Project Period (FY) 1991 – 1992
Keywordspavement / sensible heat transport / infrared radiation / absorption of radiation / anthropogenic heat / urban heat island / urban climate / urban environment
Research Abstract

First, constructing experimental pavements with various materials, such as asphalt, concrete, macadam, and sand, the energy budget components at the surface, solar radiation, atmospheric radiation, backward infared radiation, temperature distribution inside the pavement was measured, together with those at the bare soil. It was found that the sensible heat transport amounted up to 350W/m2 about 14:00 on the asphalt surface, whereas 150W/m2 with the concrete surface and the bare soil. This high emission from the asphalt surface is due to the high temperature, 60 to 70 C, which was 20 degrees higher than that of the atmosphere.
The infrared emission from the surface exceeds the atmospheric radiation by 200W/m2, which was also very high. The atmospheric radiation flux model was developed to estimate how much percentage of this emission excess is absorbed by the atmosphere. The results show that, accumulated within 500m from the ground, there is about 80W/m2 excess of absorption compared with the emission of the air in case of the asphalt. This is also very high compared with anthropogenic heat emission, which is about 10-20W/m2 in average.
This high absorption rate was confirmed with field experiment by raising infrared radio meter.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 浅枝 隆,北原 正代,藤野 毅,和氣 亜紀夫: "加熱された舗装面上空の大気加熱過程の解析" 土木学会論文集II-23. 467. (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 浅枝 隆,藤野 毅: "舗装面の熱収支と蓄熱特性について" 水文、水資源学会誌 No4. 5. 3-7 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 浅枝 隆,藤野 毅,北原 正代,和氣 亜紀夫,窪田 陽一: "舗装面が地表付近の大気の加熱に及ぼす影響" 環境システム研究. 20. 299-303 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 藤野 毅,浅枝 隆,柴原 千浩: "赤外放射の大気中での吸収量" 第29回環境工学研究フォーラム. 90-92 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 浅枝 隆,永沼 崇彦,鈴木 水弘,塩崎 修男: "都市域の温暖化における舗装の蓄熱効果" 水工学論文集. 35. 591-596 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.ASAEDA,Vu Thanh Ca: "The-surface transport of heat and moisture and its effect on the environment ia numerical model" Boundory-Layer Meteorology.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T,Asaeda, M.Kitahara, T.Fujino, A.Wake: "The heating of the paved ground and its effects to the surface atmosphere" J. Hydraulic, Coastal, Environmental Engrg, Proc. JSCE. No.467(II-23). (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T,Asaeda & T.Fujino: "Heat flux and heat storage properties of the paved ground" J. Japan Soc. Hydrol. & Water Resources. Vol.5. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Asaeda, T.Fujino, M.Kitahara, A.Wake, Y.Kubota: "Heat storage effect of pavement on surface atmosphere" Environmental System Res.Vol.20. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Fujino, T.Asaeda, C.Shibahara, A.Wake: "Heating effect due to the ground surface improvement" Environmental Engrg Res. Forum. Vol.29. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Asaeda, T.Naganuma, M.Suzuki, N.Shiozaki: "Ground heat storage of surface materials in the urban area" Proc. Hydraulic Engineering, JSCE. Vol.35. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Asaeda, Vu Ca Thanh: "The surfcace transport of heat and moisture and its effect on the environment; a numerical model" Boundary-Layer Meteorology.

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1994-03-24  

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