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Rainmaking in Seashore Desert

Research Project

Project/Area Number 07808064
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 環境保全
Research InstitutionKanazawa Institute of Technology

Principal Investigator

YANAGISHITA Kazuo  Kanazawa Institute of Technology, Department of Technology, Professor, 工学部, 教授 (20239809)

Co-Investigator(Kenkyū-buntansha) WAKABAYASHI Hiroaki  Kanazawa Institute of Technology, Department of Technology, Professor, 工学部, 教授 (90011056)
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1997: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1996: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1995: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsArtificial Rain / Desert Greening / Technology Assessment / Solar Energy Utilization / Seashore Desert / Fixing Carbon Dioxide / Water Resouces / Halophyte / テクノロジーアセスメント / 炭酸ガスの固定 / 再生可能エネルギー / 太陽光吸収 / サトウキビ / 灌漑 / アルコール / 海水蒸発加速 / さとうきび / 灌慨
Research Abstract

The aim of this research is to make rain in a desert near sea. There is no cloud in desert area, therefore, seeding by dry ice or silver iodine is not possible. Our idea is to make cloud by accelerating evaporation of sea water, by putting black material on the surface of the sea. It absorbes solar energy 100% on the sea surface, without reflecting it back to the space nor penetrating into deep the sea. The sea surface becomes very hot and evaporation is increased. The evaporated moisture must be moved onto the desert, otherwise, it falls down into the sea at night. Putting black material on desert surface, solar energy absoption is increased compared with no black material exists. It absorbes solar energy 100% and the desert surface becomes hotter than without the black material. Then air on the surface becomes hot and expands and becomes lighter and goes up and the area becomes of low pressure. The moisture on the sea surface is of high pressure and moves to low pressure area on the desert, and moves upward, being pulled by the upward air stream. In the high sky, the noisture is cooled by adiabatic expansion and make cloud and rain. Several materials were tested outdoors and in the dark room experiments, and 28-41% increase of evapopration was observed. Soler reflection by several kinds of desert sand were measured to be 30-70%, with means absorption by 1.5-3times is expected, although higher absoption does not gurantee rain fall. The longest distance between black area on the sea and the black area on the desert was not defined yet at this stage of the research.

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] 柳下 和夫: "海に近い砂漠に雨を降らす方法" 水. 37・4. 16-21 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yanagishita, Kazuo: "Rainmaking in Seashore Deserts" Green Age. 6・8. 7-11 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 柳下 和夫: "海に近い砂漠に雨を降らす方法" Marine. 28・11/12. 78-84 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Mason, P.M.et al Ed.(Yanagishita, Kazuo): "Management of Technpopgy V (MaKING Artificial Rain On A Desert Near Sea)" Elsaier Advanced Technology (International Association for Management Of Technology), 905 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yanagishita, Kazuo: "Rainmaking in Seashore Deserts" Mizu (Water). Vol.37, No.4. 15-21 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yanagishita, Kazuo: "Rainmaking in Seashore Deserts" Green Age. Vol.6, August. 7-11 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yanagishita, Kazuo: "Rainmaking in Seashore Deserts" Marine. Vol.27, No.11/12. 78-84 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yanagishita, Kazuo: Making Artificial Rain on a Desert Near Sea, Managementof Technology, Vol.V. International Association for Management of Technology, 365 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 柳下和夫: "海に近い砂漠に雨を降らす方法" 水. 37/5. 16-21 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 柳下和夫: "海に近い砂漠に雨を降らす方法" Marine. 27/11-12. 78-84 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 柳下和夫: "21世紀のエネルギーを求めて" エネルギー・資源. 17/6. 96 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Yanagishita: "Management of Technology V" Elsavier Advanced Technology, 1/905 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kazuo Yanagishita: "Making Artficial Rain on a Desert near Sea" International Association for Management of Technology. (講演のみ). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 柳下 若林 村田 小板橋: "海に近い砂漠に海を降らす方法の研究" 日本沙漠学会. (講演のみ). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kazuo Yanagishita: "Management of Technology V" Making Artficial Rain on a Desert near Sea, 365 (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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