Influence analysis of standby sampling points on water Radon observation at Hanzhong seismic station
-
摘要: 以汉中地震台两个水氡采样点为实验对象,通过对比观测得出主用备用两个采样点同日氡值及水温,分析差异原因。分析结果表明,备用采样点观测结果会对本台水氡观测产生直接影响,增加了数据分析的不确定性,并影响观测结果的连续性。Abstract: In this paper, two water Radon sampling points at Hanzhong seismic station are taken as experimental objects. Through comparative observation, the Radon value and water temperature on the same day at the main and standby sampling points are obtained, and the reasons for the difference are analyzed. It is shown that the observation results at the standby sampling points will have a direct impact on the water Radon observation at this station, and increase the uncertainty of data analysis and affect the continuity of observation results.
-
表 1 实验主要数据成果表
Table 1. Main data and results of the experiment
实验时间 5#井 2#井 主样/(Bq•L−1) 副样/(Bq•L−1) 水温/℃ 主样/(Bq•L−1) 副样/(Bq•L−1) 水温/℃ 2021-01-02 23.7 23.4 18.3 18.3 18.7 18.7 2021-01-03 23.1 23.5 18.3 17.6 17.5 18.7 2021-01-04 22.8 23.0 18.3 18.6 18.4 18.7 2021-02-24 23.5 23.8 18.3 19.0 17.9 18.6 2021-02-25 23.7 24.1 18.3 18.1 18.2 18.7 2021-02-26 23.6 23.9 18.3 18.4 18.1 18.7 2021-03-04 23.0 23.8 18.3 17.9 17.7 18.7 2021-03-05 22.8 24.0 18.4 18.8 18.1 18.7 2021-03-06 23.1 23.5 18.4 17.6 18.4 18.7 2021-03-07 23.5 23.9 18.4 18.9 18.0 18.7 2021-04-20 23.6 22.8 18.4 18.3 18.9 18.7 2021-04-21 24.1 23.8 18.4 18.8 18.7 18.7 2021-04-22 24.1 23.9 18.5 18.5 18.6 18.7 2021-05-31 23.9 24.1 18.5 18.0 18.9 18.8 2021-06-04 24.0 24.1 18.5 18.6 18.2 18.8 2021-06-05 24.6 23.9 18.5 18.1 18.6 18.9 2021-06-07 24.0 24.5 18.5 17.6 18.8 18.9 2021-06-22 24.3 24.3 18.5 18.0 17.6 18.9 2021-06-23 24.6 24.6 18.5 17.6 18.7 19.0 2021-06-24 24.0 23.9 18.5 17.6 18.3 19.0 2021-07-23 23.8 24.2 18.5 18.6 18.7 19.0 2021-07-24 24.0 24.1 18.5 18.0 17.9 19.0 2021-07-31 23.5 24.5 18.5 18.1 17.4 19.0 2021-08-09 24.6 24.6 18.5 18.7 17.8 19.0 2021-08-10 24.1 24.6 18.5 18.1 18.6 19.0 2021-08-13 24.0 24.3 18.5 18.9 18.2 19.0 2021-09-16 23.1 23.6 18.5 17.9 18.8 19.0 2021-09-17 23.5 23.1 18.5 17.9 18.2 19.0 2021-09-18 23.8 23.9 18.5 17.8 18.3 19.0 2021-09-19 24.0 23.5 18.5 17.7 18.5 19.0 2021-10-05 22.9 23.9 18.5 18.5 18.5 19.0 2021-10-06 23.8 24.0 18.5 18.2 18.3 19.0 2021-10-07 23.3 23.2 18.5 18.6 18.4 19.0 2021-11-17 23.7 23.2 18.4 18.1 18.4 19.0 2021-11-18 23.9 23.7 18.4 18.0 17.8 19.0 2021-11-19 23.5 23.6 18.4 18.3 18.1 19.0 2021-12-23 23.8 24.0 18.3 18.2 18.3 18.9 2021-12-24 23.8 24.2 18.3 18.4 18.5 18.9 2021-12-25 23.4 23.8 18.3 18.2 18.4 18.8 2021-12-26 23.6 23.8 18.3 18.4 17.9 18.8 表 2 水温配对样本统计表
Table 2. Statistics of paired water temperature samples
平均值/(Bq•L-1) 个案数 标准偏差 标准误差平均值 配对1 5#井 18.4250 40 0.0870 0.0138 2#井 18.8675 40 0.1385 0.0219 配对2 5#井—2#井 -0.4425 40 0.1035 0.0164 注:标准偏差指样本分散值之间差值大小;标准误差平均值指样本平均值与整体平均值的差异 表 3 两井氡值配对统计表
Table 3. Pairing statistics of radon values of two wells
平均值/(Bq•L-1) 个案数 标准偏差 标准误差平均值 配对 1 5#井主样 23.703 40 0.4599 0.0727 2#井主样 18.225 40 0.3948 0.0624 配对 2 5#井副样 23.865 40 0.4377 0.0692 2#井副样 18.283 40 0.3812 0.0603 配对 3 5#井均值 23.784 40 0.3920 0.0620 2#井均值 18.254 40 0.2690 0.0425 配对 4 5#井主样—2#井主样 5.4777 40 0.6344 0.1003 配对 5 5#井副样—2#井副样 5.5820 40 0.6271 0.0992 配对 6 5#井均值—2#井均值 5.5299 40 0.4856 0.0768 注:标准偏差指样本分散值之间差值大小;标准误差平均值指样本平均值与整体平均值的差异 表 4 配对样本相关性
Table 4. Correlation of paired samples
个案数 相关性 显著性 配对 1 5#井均值与2#井均值 40 −0.046 0.777 -
[1] 中国地震局. 地震水文地球化学观测技术规范[M]. 北京: 地震出版社, 2014: 3-10China Earthquake Administration. Technical specifications for seismic hydrogeochemical observation[M]. Beijing: Seismological Press, 2014: 3-10 [2] 赵影,黄仁桂,王敏. 九江二井氡观测实验研究[J]. 防灾减灾学报,2016,32(3):31-33Zhao Y,Huang R G,Wang M. Research on radon observation at Jiujiang No. 2 well[J]. Journal of Disaster Prevention and Reduction,2016,32(3):31-33 [3] 黎己余,郑辰禾,林稚颖,等. 不同型号测氡仪器在宁德一号井观测效能分析[J]. 地震科学进展,2021,51(12):553-559Li J Y, Zheng C H, Lin Z Y, et al. Analysis of the observation effectiveness of different types of instrument for radon measurement in Ningde No.1 well[J]. Progress in Earthquake Sciences,2021,51(12):553-559 [4] 张晨蕾,杨敏,赵小茂. 数字化气氡在井(泉)地震监测中的研究进展[J]. 地震科学进展,2020,50(8):8-13Zhang C L, Yang M, Zhao X M. The research progress on digital measurement of gas Radon in wells(springs) for seismic monitoring[J]. Progress in Earthquake Sciences,2020,50(8):8-13 [5] 石小磊,王俊,李良辉,等. 蚌埠台水氡观测数据变化分析[J]. 地震科学进展,2021,51(3):130-134Shi X L, Wang J, Li L H, et al. Analysis of variation characteristics of radon observation data in Bengbu station[J]. Progress in Earthquake Sciences,2021,51(3):130-134 -