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温熱環境に及ぼす植生の緩和効果に関する数値実験
https://doi.org/10.24514/00001514
https://doi.org/10.24514/00001514dfffe3df-54a7-4044-83bd-f5fe8134eb9d
| 名前 / ファイル | ライセンス | アクション |
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narc_report_No5p1-21p.pdf (590.8 kB)
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| Item type | 紀要論文01 / Departmental Bulletin Original Article(1) | |||||||||||
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| 公開日 | 2019-03-22 | |||||||||||
| タイトル | ||||||||||||
| タイトル | 温熱環境に及ぼす植生の緩和効果に関する数値実験 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Numerical Experiments for Vegetation Mitigation Effects on Thermal Environment | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | jpn | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | land-use pattern | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | vegetation mitigation | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | transition boundary layer | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | local climate model | |||||||||||
| キーワード | ||||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | sensible temperature | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | land-use pattern | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | vegetation mitigation | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | transition boundary layer | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | local climate model | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | sensible temperature | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||
| ID登録 | ||||||||||||
| ID登録 | 10.24514/00001514 | |||||||||||
| ID登録タイプ | JaLC | |||||||||||
| 著者 |
井上, 君夫
× 井上, 君夫× 中園, 江× 川方, 俊和
WEKO
1028
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | We evaluated changes in land-use patterns on surrounding thermal environments. Our numerical model was a modified version of the coupled atmosphere-plant-soil model（CAPSM）developed by Inoue（1995) . Numericale xperiments focus on a rural-suburban area including Tsukuba Science City. This paper details field experiments on the temperature variations in the transition boundary in which wind passes from one surface to another with different roughesses. Simulation and observation were conducted in clear summer weather in 1996. The prevailing wind was from NE to SW for July 1996 simulations. In CAPSM, individual land plots corresponding to paddy fields, grassland, industrial zones,were parameterized by model canopies with different aerodynamic properties, radiation profiles, stomatal resistance, and turbulence. (1) Simulation showed that monthly mean air temperature and canopy temperature within model canopies are lower for relatively wet plots such as paddy fields and forests than for relatively dry plots such as upland crops and industrial zones, mainly because much short-wave radiation at wet sites is used as latent heat to evaporate water into the atmosphere. We found that midday temperatures at wet sites were 3-6℃ lower than at dry sites, indicating that wet sites modify surrounding thermal environments to a greater extent than dry sites. Simulation for intentionally modified terrain showed that monthly mean of daily mean and daily maximum air temperatures at z=1.5m are related to the Bowen ratio characterizing the energy balance as a land-use pattern. This means that latent heat flux due to evapotranspiration plays an important role in vegetation mitigation in thermal environments. （2） To evaluate the sensible temperature on thermal conditions experienced by human beings, we used Linke's equation. Sensible temperature is expressed as a function of simulated wind velocity, global solar radiation, and air temperature distributions at z=1.5 m above ground. The sensible temperature thus calculated was apparently lower over paddy fields and forests with larger latent heat flux than over grassland and houses with larger sensible heat flux. These results agree well with spatial distribution patterns of the canopy temperature obtained from our CAPSM simulation results. （3） Our field experiments indicated that horizontal variations in air temperature affected by thermal environments of nonuniform terrain in the transition boundary layer are controlled strongly by mean wind velocity, roughness length, and short-wave radiation and suggested that the roughness effect is indispensable to moderating thermal environments. Our results agree qualitatively with our CAPSM simulation results. | |||||||||||
| 書誌情報 |
中央農業総合研究センター研究報告 en : Bulletin of the National Agricultural Research Center 巻 5, p. 1-21, 発行日 2004-08-01 |
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| 出版者 | ||||||||||||
| 出版者 | 独立行政法人 農業・生物系特定産業技術研究機構 中央農業総合研究センター | |||||||||||
| ISSN | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 1881-6738 | |||||||||||
| DOI | ||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.24514/00001514 | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
