市街化空間の熱的環境に関する研究 : その 5 小都市における熱的環境実測

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  • RESEARCH ON THERMAL ENVIRONMENT IN URBANIZED AREA : Part 5 Field and numerical studies of the heat island effect in a small city
  • 市街化空間の熱的環境に関する研究-5-小都市における熱的環境実測
  • シガイカ クウカン ノ ネツテキ カンキョウ ニカンスルケンキュウ 5 ショウ

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The results of observations of the heat island effect in Lund, Sweden, and comparisons of observed and calculated temperature are described. The horizontal and vertical temperature distributions are observed with automobile-mounted thermo-couples and a wire sonde. The results may be summarized as follows. 1. Lapse rates in rural are approximately proportional to those in urban, however the lapse rates in urban are almost neutral compared with those in rural. 2. Heat island intensities (&lrtri;t_<u-r>) are approximately proportional to lapse rates in rural. 3. The highest temperatures are in fairly good agreement with predicted temperatures by Summer's model, however coincidences of the temperature distributions are not in good. 4. Calculated temperature distributions by the numerical method described previously are in good agreement with the observed results, where KEYPS Foumula is used to calculate distributions of wind velocity and eddy diffusivity. The correlation coefficients between calculated and observed temperatures are from 0.82 to 0.88.

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