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A Study on the surface geometry dependence of urban surface radiation balance

Research Project

Project/Area Number 09680173
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 自然地理学
Research InstitutionJoetsu University of Education

Principal Investigator

NAKAGAWA Kiyotaka  Joetsu University of Education, College of Education, Professor, 学校教育学部, 教授 (70115252)

Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 1999: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1998: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1997: ¥2,600,000 (Direct Cost: ¥2,600,000)
Keywordsurban climate / radiation balance / albedo / surface temperature / surface geometry / 衛星リモートセンシング / 模型実験 / 数値実験 / 地表面放射収支 / 都市表面形状 / 熱収支
Research Abstract

The purpose of the present study is to discuss the surface geometry dependence of the surface heat balance in the urban area. In order to achieve the above purpose, the present study developed technics for inferring the surface albedo and temperature form LANDSAT data, for continuously observing the surface temperatures of urban model by the thermal video, and for numerical simulation of heat balance in the urban area.
From analyzing LANDSAT data, it was found that, in the urban area, the point with lower albedo tended to have high surface temperature, and the point with lower albedo and higher surface temperature had higher building-land ratio and lower sky view-factor.
From continuous observation on surface temperature distribution of the urban model in terms of the thermal video, it was found that the roof, canyon wall and floor have different temperatures each other, which depended on urban surface geometry.
From the numerical simulation, it was found that surface temperatures of roof, canyon wall and floor have clear dependence both on urban surface geometry and on solar elevation.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] 中川清隆: "新潟県上越市高田市街地およびその周辺における地表面アルベド分布の天空率依存性"地理学評論. 68A. 603-620 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 中川清隆: "関東平野諸都市における表面形状と地表面アルベドの関係"地理学評論. 68A. 741-760 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 中川清隆: "都市地表面アルベドの表面形状依存性に関する数値実験"地理学評論. 69A. 415-435 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Nakagawa, K.: "Recent trends of urban climatological studies in Japan, with special emphasis on the thermal environments of urban areas"Geographycal Review of Japan. 69B. 206-224 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 中川清隆: "谷治正孝氏の拙論への疑問に対する回答"地理学評論. 72A. 385-389 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 中川清隆: "都市地表面放射収支の表面形状依存性に関する研究"上越教育大学. 135 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Nakagawa, K.: "The dependence of surface albedo on the sky view factor in the built-up area of Takada, Niigata, Japan."Geogr. Rev. Japan, Ser. A. vol. 68, No. 9. 603-620 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Nakagawa, K.: "The relationship between surface albedo and surface structure in the central parts of urban areas in the Kanto Plain, Japan."Geogr. Rev. Japan, Ser. A. vol. 68, No. 11. 741-760 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Nakagawa, K.: "A numerical experiment on the dependence of the surface albedo on the surface structure of an urban area."Geogr. Rev. Japan, Ser. A. vol. 69, No. 6. 415-435 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Nakagawa, K.: "Recent trends of urban climatological studies in Japan, with special emphasis on the thermal environments of urban areas."Geogr. Rev. Japan, Ser. A. vol. 69, No. 2. 206-224 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Nakagawa, K.: "Reply to Masataka Yaji."Geogr. Rev. Japan, Ser. A. vol. 72, No. 2. 385-389 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 中川清隆: "新潟県上越市高田市街地およびその周辺における地表面アルベド分布の天空率依存性"地理学評論. 68A. 603-620 (1995)

    • Related Report
      1999 Annual Research Report
  • [Publications] 中川清隆,中山智映子: "関東平野諸都市における表面形状と地表面アルベドの関係"地理学評論. 68A. 741-760 (1995)

    • Related Report
      1999 Annual Research Report
  • [Publications] 中川清隆: "都市地表面アルベドの表面形状依存性に関する数値実験"地理学評論. 69A. 415-435 (1996)

    • Related Report
      1999 Annual Research Report
  • [Publications] Nakagawa K.: "Recent trends of urban climatological studies in Japan, with special emphasis on the thermal environments of urban area"Geographycal Review of Japan. 69B. 206-224 (1996)

    • Related Report
      1999 Annual Research Report
  • [Publications] 中川清隆: "谷治正孝氏の拙論への疑問に対する回答"地理学評論. 72A. 385-389 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 中川清隆: "都市地表面放射収支の表面形状依存性に関する研究"上越教育大学. 135 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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