• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Study on Effects of Vegetation on Atmospheric Circulation

Research Project

Project/Area Number 08650591
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 水工水理学
Research InstitutionGunma University

Principal Investigator

KOBATAKE Shigeki  Gunma Unversity, Faculty of Engineering, Prof., 工学部, 教授 (00027260)

Co-Investigator(Kenkyū-buntansha) SIMIZU Yoshihiko  Gunma Unversity, Faculty of Engineering, Asc.Prof., 工学部, 助教授 (70178995)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1997: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1996: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsAtmospheric circulation / Vegetation effects / Observations of micro-climate / シミュレーション / 気候緩和 / 森林効果
Research Abstract

In order to develop a simulation model to estimate the role of vegetations on atmospheric circulation, observations of micro-climate were carried out in a grove and outside the grove. The results obtained are as follows. 1.Temperature in a grove is lower compared to outside the grove in the day time. After3-4pm.temperature in a grove becomes higher compared to outside the grove and this state continues to sunrise of next morning. The phase difference of temperature variation between inside and outside the grove is about 30 minutes. In the case of strong wind such as thunderstorm, the temperature of inside the grove changes immediately with temperature of outside. 2.The eddy diffusivity was estimated using Profile relations and daily changes of heat and moisture flux near the crown were calculated. The results seemed to be adequate. 3.The net radiation during day time was around 30-40w/m^2 inside the grove. 4.Soil temperature of 5cm under the ground surface changed 1゚C,meanwhile, soil temperature of same position outside the grove changed 4-5゚C.5.The simulation model of air flow is under construction using 3-dimensional LES model. In future, the heat-balance equations must be taken into account.

Report

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

    (16 results)

All Other

All Publications (16 results)

  • [Publications] M.O.Nyadawa: "Estimating Transmission Losses in the Channel of River Tana, Kenya" Journal of Japan Society of Hydrology & Water Resources. Vol.10 No.2. 161-173 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 小葉竹 重機: "河川水温の形成過程における光の吸収率の影響" 土木学会水工学論文集. 第41巻. 599-604 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 清水 義彦: "平衡植生流れと浮遊砂輸送に関する数値計算" 土木学会水工学論文集. 第41巻. 845-850 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Shimizu, Yoshihiko: "Suspended Sediment Concentration Affected by Organized Motion Near Vegetation Zone" Environmental and Coastal Hydraulics. The 27th IAHR Congress. Proc. of Thema B. 1384-1389 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 小葉竹 重機: "植生の回復に伴う流出特性の変化" 土木学会水工学論文集. 第42巻(印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] M.O.Nyadawa, Shigeki Kobatake and Kazuhiro Ezaki: "Estimating Transmission Losses in the Channel of River Tana, Kenya" Journal of Japan Society of Hydrology and Water Resources. Vol.1O,No.2. 161-173 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Shigeki Kobatake and others: "Effect of Absorption of Light on River Water Temperature" Annual Journal of Hydraulic Engineering, JSCE. vol.41. 599-604 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] YoShihiko Shimizu and others: "Numerical Study on Characteristics of Turbulent Flow and Suspended Sediment Transport in a Vegetated Channel" Annual Journal of Hydraulic Engineering, JSCE. Vol.41. 845-850 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshihiko Shimizu and others: "Suspended Sediment Concentration Affected by Organized Motion Near Vegetation Zone" Environmental and Coastal Hydrau-lics, The 7th IAHR Congress, Proc.of Thema B. 1384-1389 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Shigeki Kobatake and others: "On the Change of Runoff Characteristics According to Vegetation Recovery" Annual Journal of Hydraulic Engineering, JSCE. Vol.42 (in printing). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] M.O.Myadawa: "Estimating Transmission Losses in the Channel of River Tana,Kenya" Journal of Japan Society of Hydrology & Water Resources. Vol.10 No.2. 161-173 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小葉竹 重機: "河川水温の形成過程における光の吸収率の影響" 土木学会水工学論文集. 第41巻. 599-604 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 清水 義彦: "平衡植生流れと浮遊砂輸送に関する数値計算" 土木学会水工学論文集. 第41巻. 845-850 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Shimizu Yoshihiko: "Suspended Sediment Concentration Affected by Organized Motion Near Vegetation Zone" Enrironmental and Coastal Hydraulics,The27th IAHR Congress. Proc.of Thema B. 1384-1389 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小葉竹 重機: "植生の回復に伴う流出特性の変化" 土木学会水工学論文集. 第42巻(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小葉竹重機: "河川水温の形成過程における光の水中吸収率の影響" 土木学会水工学論文集. 第41巻. 599-604 (1997)

    • Related Report
      1996 Annual Research Report

URL: 

Published: 1996-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi