Formulation of a model for the budgets of heat, water vapor, and carbon dioxide with a regelation and soil

• Project/Area Number: 13650651
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Architectural environment/equipment
• Research Institution: Kyoto University
• Principal Investigator: HIRAOKA Hisashi KYOTO UNIVERSITY, Academic Center Computing and Media Studies, Assoc.Prof., 学術情報メディアセンター, 助教授 (80115922)
• Project Period (FY): 2001 – 2003
• Project Status: Completed (Fiscal Year 2003)
• Budget Amount: ¥2,600,000 (Direct Cost: ¥2,600,000); Fiscal Year 2003: ¥600,000 (Direct Cost: ¥600,000); Fiscal Year 2002: ¥600,000 (Direct Cost: ¥600,000); Fiscal Year 2001: ¥1,400,000 (Direct Cost: ¥1,400,000)
• Keywords: vegetation / soil / heat budget / water vapor budget / carbon dioxide budget / turbulence closave model / vadiation frausfer model / stomatal conductance model / 植栽 / 放射 / 二酸化炭素 / 光合成 / 土壌呼吸 / 熱収支モデル / 蒸散 / 放射モデル

Research Abstract

Several sub-models were investigated to formulate a model for estimating the budgets of heat, water vapor, and carbon dioxide within vegetation and soil, that is -(1) a turbulence closure model for moist air within vegetation, (2) a radiation transfer model within vegetation, (3) a stomatal conductance model, (4) a root water-uptake model, (5) a simultaneous heat and water transfer model within soil, (6) a root respiration model, and (7) a soil respiration model.
The model for the budgets of heat, water vapor, and carbon dioxide within vegetation was verified in this study. And the heat budget within vegetation was numerically investigated in detail. The followings became clear from the investigation: (1) A great deal of radiation absorbed by leaves is released by transpiration. (2) Long-wave radiation is not omitted in estimating the heat budget in comparison with short-wave radiation.

Research Products

• [Publications] Hiraoka, H: "Modeling the budgets of heat, water vapor, and carbon dioxide within a tree"'Advances in Fluid Modeling and Turbulence Measurements' ed. by Wada, A. et al.. 727-734 (2002)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 平岡久司: "植栽内熱・水分収支モデルの検証"日本建築学会計画系論文集. 558. 31-36 (2002)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Hiraoka, H: "Simulating the microclimate produced by a single tree"First International Workshop on Architectural and Urban Ambient Environment, held at Nautes France. (CD-ROM). (2002)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Hiraoka, H: "Modeling the Leipzig wind profile with a (κ-ε) model"Wild and Structure, An International Journal. 6. 469-480 (2001)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 平岡久司: "樹木の熱・水分・二酸化炭素収支のモデル化に関する考察"日本建築学会計画系論文集. 546. 53-60 (2001)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Hiraoka, H: "An investigation of the effect of environmental factors on the budgets of heat, water vapor, and carbon dioxide within a tree"3rd International Symposium on Advanced Energy Conversation Systems and Related Technologies, held at Nagoya Japan. 718-724 (2001)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Hiraoka, H.: "Modeling the budgets of heat water vapor, and carbon dioxide within a tree."Advances in Fluid Modeling and Turbulence Measurements' (ed. by Wada, A. et tal). 727-734 (2002)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Hiraoka, N.: "Modeling the budgets of heat and water vapor within vegetation: a verification study."J.Archit.Plann.Environ.Eng., AIJ(in Japanese). No.558. 31-36 (2002)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Hiraoka, H.: "Simulating the microclimate produced by a single tree."First International Workshop on Architectural and Urban Ambient Environment, held at Nantes, France, CD-RON. 12 (2002)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Hiraoka, H.: "Modeling the Leipzig wind profile with a (k-ε) model."Wind and Structure, An International journal. vol.6. 468-480 (2001)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Hiraoka, H.: "Modeling the budgets of heat, water vapor, and carbon dioxide within a tree."J.archit.Plain.Environ.Eng., AIJ(in Japanese). No.546. 53-60 (2001)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Hiraoka, H.: "An investigation of the effect of environmental factors on the budgets of hurt, water vapor, and carbon dioxide within a tree."3rd International Symposium on Advanced Energy Conversation Systems and Related Technologies, held at Nagoya, Japan, CD-ROM. 718-724 (2001)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Hiraoka, H.: "Modeling the Budgets of Heat, Water Vapor and Carbon Dioxide within a Tree"'Advances in Fluid Modeling and Turbulence Measurements' ed.by Wada, A.et al.. 727-734 (2002)
• [Publications] 平岡久司: "植栽内熱・水分収支モデルの検証"日本建築学会計画系論文集. 558. 31-36 (2002)
• [Publications] Hiraoka, H.: "Simulating the microclimate produced by a single tree"First International Workshop on Architectural and Urban Ambient Environment will be held on February 6-8, 2002 in Nantes, France. (CD-ROM). (2002)
• [Publications] Hiraoka, H.: "Modeling the Leipzig wind profile with a (κ-ε) model"Wind and Structure, An International Journal. 6. 469-480 (2001)
• [Publications] 平岡久司: "樹木の熱・水分・二酸化炭素収支のモデル化に関する考察"日本建築学会計画系論文集. 53-60 (2001)
• [Publications] Hiraoka, H.: "An investigation at the effect of environmental factors on the budgets of hear, water vapor, and carbon dioxide within a tree"3rd International Symposium on Advanced Energy Conversion Systems and Related Technologies, December 15-17, 2001, Nagoya, Japan. (CD-ROM). 718-724 (2001)
• [Publications] H.Hiraoka: "Modeling the budgets of heat and water vpor within vegetation"International Workshop on physical Modelling of Flow and Dispersion Phenomena, held at Prato, Italy. 8 (2003)
• [Publications] 平岡 久司: "植物キャノピー乱流モデルの比較"第16回数値流体力学シンポジウム. 16(CD-ROM). B26-B26-9 (2002)
• [Publications] H.Hiraoka: "Simulating the microclimate produced by a single tree"First International Workshop on Architectural and Urban Ambint Equipment, held at Nantec, France. (CD-ROM). 12 (2002)
• [Publications] H.Hiraoka: "Modeling the budgets of heat, water vpor, and Uarbon dioxide within a tree"Advances in Fluid Modeling and Turbulence measurments ed, by Wacla, A., Ninokata, H., and Tanaka, N.. 727-734 (2002)
• [Publications] 平岡 久司: "植裁内熱・水分収支モデルの検証"日本建築学会計画系論文集. 558. 31-36 (2002)
• [Publications] 平岡 久司: "樹木の熱・水分・二酸化炭素モデルに関する考察"日本建築学会計画系論文集. 546. 53-60 (2001)
• [Publications] Hisashi Hiraoka: "Simulating the Microclimate Produced by a Single tree"Architectural and Urban Ambient Environment, First International Workshop -Nantes, France, Feb.6-8 2002. (CD-ROM). 12 (2002)
• [Publications] 平岡 久司: "樹木の熱・水分・二酸化炭素収支のモデル化に関する考察"日本建築学会計画系論文集. 546. 53-60 (2001)
• [Publications] Hisashi Hiraoka: "An investigation of the Effect of Environmental Factors on the Budgets of Heat, Water Vapor, and Carbon Dioxide within a Tree"3rd International Symposium on Advanced Energy Conversion Systems and Related Technologies, held at Nagoya University. (CD-ROM). 718-724 (2001)
• [Publications] 平岡 久司: "植裁内熱・水分収支モデルの検証"第15回 数値流体力学シンポジウム講演論文集,E01-1. (CD-ROM). 8 (2001)
• [Publications] Hisashi Hiraoka, Hiroshi Nakashima: "A Non-Linear Multi-Regression Model of Stomatal Conductance Using a Neural Network"Progress of Agricultural Information Technology, ed. Chunjiang Ahao, International Academic Press. 102-110 (2000)
• [Publications] Hisashi Hiraoka: "An Estimation of the Balances of Heat, Water Vapor, and Carbon Dioxide within a Tree by Means of a Simulation Model"Third International Symposium on Computational Wind Engineering, held at The University of Birmingham. 207-210 (2000)