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1986 Fiscal Year Final Research Report Summary

Experimental studies on the long period changes of air-surface energy exchanges

Research Project

Project/Area Number 60400007
Research Category

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

Allocation TypeSingle-year Grants
Research Field 広領域
Research InstitutionKyoto University

Principal Investigator

YASUSHI Mitsuta  Disaster Prevention Res. Inst., Professor, 防災研究所, 教授 (90027219)

Co-Investigator(Kenkyū-buntansha) TOSHIHARU Kojiri  College of Eng., Gifu Univ. Associate Professor, 工学部, 助教授 (00026353)
TAIICHI Hayashi  Disaster Prevention Res. Inst., Kyoto Univ. Instructor, 防災研究所, 助手 (10111981)
MASAAKI Tanaka  Disaster Prevention Res. Inst., Kyoto Univ. Associate Professor, 防災研究所, 助教授 (60027240)
SHUICH Ikebuchi  Disaster Prevention Res. Inst., Kyoto Univ. Professor, 防災研究所, 教授 (20026181)
Project Period (FY) 1985 – 1986
KeywordsEnergy balance / Heat balance / Water balance / Turbulent transport / Surface layer / Soil moisture / evaporation
Research Abstract

Energy exchanges between ground surface and atmosphere is one of the important links of global atmospheric processes. Most of the past studies on air-surface interactions were mainly made in fair weather condition to check the results of the theories of atmospheric turbulence. However, to incooperate with climatic changes the interaction processes in general condition such as coludy or rainy days should be evaluated. The purpose of the present study is, on that point, to measure air-surface interactions in general condition and detect long period changes of energy exchanges.
For thie purpose, the measurement was devided into two part. One is long range observation in simple method and the other is the detailed observation to check it. For the former purpose profile techniques with lobing mast and continuous measurements of the ground surface radiation temperature and the surface wetness were made together with rainfall, evaporation and soil temperature and humidity measurements. For the detailed observations to check the simple method, the eddy correlation method with the use of the sonic anemoneter-thermometer and the infrared hygrometer together with air density gradient measurement by laser beam deflection is employed.
These observations were made on the southern end of the Uji Ground of Kyoto University from 1986. The detailed analysis of the data are still under going including detailed analysis moisture exchanges. Some of the results were published in the report.

  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] 塚本 修: 京都大学防災研究所年報. 29-B-1. 261-270 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 光田 寧: 京都大学防災研究所年報. 29-B-1. 271-281 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 光田 寧: 京都大学防災研究所年報. 30-B-1. 287-295 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 光田 寧: 京都大学防災研究所年報. 30-B-1. 297-308 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 玉川 一郎: 京都大学防災研究所年報. 31-B-1. (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 池淵 周一: 京都大学防災研究所年報. 31-B-2. (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasushi Mitsuta: "An Observational Study of the Energy Exchange Process at the Air-Ground Interface (1)" The Annuals of the Disaster Prevention Research Institute Kyoto University. 29 B-1. 271-281 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yasushi Mitsuta: "An Observational Study of the Energy Exchange Process at the Air-Ground Interface (2)" The Annuals of the Disaster Prevention Research Institute Kyoto University. 30 B2-1. 287-295 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yasushi Mitsuta: "Turbulence Measurements of Air-Sea Interaction Processes with Observational Pier" The Annuals of the Disaster Prevention Research Institute Kyoto University. 30 B-1. 297-308 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ichirou Tamagawa: "Studies on the Relationship between Surface Soil Moisture and Radiative Temperature" The Annuals of the Disaster Prevention Research Institute Kyoto University. 31 B-1. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shuichi Ikebuchi: "Studies on Evaporation from Bare Soil as observed by a Lysimeter" The Annuals of the Disaster Prevention Research Institute Kyoto University. 31 B-2. (1988)

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

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Published: 1989-03-30  

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