3次元局地拡散モデルを用いた大気中ラドン濃度の日変動シミュレーション Simulation of Diurnal Variation of Atmosheric ^<222>Rn Concentrations with Three-Dimensional Atmospheric Dispersion Model

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The time variations of <sup>222</sup>Rn were calculated using a local three-dimensional atmospheric dispersion model. The contribution of <sup>222</sup>Rn emanated from at area near the measuring site to diurnal variations was estimated. The effects of a complex terrain were considered in this model. Some numerical analysis conducted in this study indicated that <sup>222</sup>Rn emanated within a 40-kilometer circle around the objective point mainly contributes to diurnal variation of concentrations at the point. Simulated results considering the horizontal distribution of exhalation rate showed better coincidence with the observed results, compared with the results assuming a homogeneous exhalation rate. Model results were compared with three series of observed data of <sup>222</sup>Rn concentrations at a height of 1m above the ground at Nagoya University. The variations of calculated and observed <sup>222</sup>Rn concentrations were in good agreement.

収録刊行物

  • 保健物理 : hoken buturi  

    保健物理 : hoken buturi 31(2), 161-168, 1996-06 

    Japan Health Physics Society

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各種コード

  • NII論文ID(NAID)
    10002135854
  • NII書誌ID(NCID)
    AN00228458
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03676110
  • NDL 記事登録ID
    4003713
  • NDL 雑誌分類
    ZN36(科学技術--原子力工学・工業) // ZS45(科学技術--医学--放射線医学)
  • NDL 請求記号
    Z16-696
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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