The diurnal change in the vertical distribution of atmospheric 222Rn due to the growth and rise of the stable stratification height in the atmospheric boundary layer

被引：2
|
作者：
Yoshioka, K [1 ]
Iida, T [1 ]
机构：
[1] Shimane Prefectural Inst Environm Sci, Matsue, Shimane 6900122, Japan
来源：
Natural Radiation Environment VII | 2005年 / 7卷
关键词：
D O I：
10.1016/S1569-4860(04)07058-5
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
To analyze the time-change of Rn-222 vertical distribution in the atmospheric boundary layer, Rn-222 was continuously measured at 3 different heights - 30, 150 and 520 m - within a 6-km radius. The air temperature was synchronously observed at 4 different heights - 1, 33, 160 and 520 m - at the same site and then the vertical distribution of temperature lapse rates calculated from these measurements. The time-change of Rn-222 vertical distribution could be attributed to the time-change of the vertical distribution of the temperature lapse rate. On the basis of this relationship, the mechanism of Rn-222 vertical mixing has been generalized as a mixing model in the atmospheric boundary layer.
引用
收藏
页码：489 / 496
页数：8
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