广西地下水位数字与模拟观测对比分析
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摘要
选取广西"十五"地震前兆网络项目地下水位数字化观测与模拟观测资料,利用固体潮形态、水震波、相关性、内在质量等方法进行了对比分析,结果表明:两种观测的动态变化基本一致;在仪器正常运行、无故障情况下,两者数据的相关性良好。综合分析认为数字化观测的信息量大,灵敏度高,跟踪速度等明显优于模拟观测。随着仪器稳定性能的提高,用数字化水位观测仪器取代模拟水位观测仪器是可行的。
In this paper, the digital and analogue data of groundwater level in Guangxi are compared and analyzed from the aspects of solid tide, seismic water level fluctuation, correlation and inherence quality. The results show that their dynamic variations are similar and a good correlation is found between parallel observations using digital and analogue instruments when the instruments operate well and no failure occurs ( the correlation coefficient of Ping -1 well at Tiandong is from 0.719 to 0.886 and that of Xishan well at Guiping is from 0.917 to 0.995) . Generally the digital observation contains more messages and its sensitivity is better than the analogue observation. With the improvement of instrument performance, it is feasible to use the digital groundwater level instrument to replace the analogue instrument.
In this paper, the digital and analogue data of groundwater level in Guangxi are compared and analyzed from the aspects of solid tide, seismic water level fluctuation, correlation and inherence quality. The results show that their dynamic variations are similar and a good correlation is found between parallel observations using digital and analogue instruments when the instruments operate well and no failure occurs ( the correlation coefficient of Ping -1 well at Tiandong is from 0.719 to 0.886 and that of Xishan well at Guiping is from 0.917 to 0.995) . Generally the digital observation contains more messages and its sensitivity is better than the analogue observation. With the improvement of instrument performance, it is feasible to use the digital groundwater level instrument to replace the analogue instrument.
引文
[1]张子广,张素欣,王宝坤,等.地下水位数字与模拟观测对比分析[J].华北地震科学,2003,21(1):15-21.
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[5]中国地震局预测研究所,LN-3A数字水位仪使用说明书[M].2006,05.
[6]蒋骏,李胜乐,等,中国地震局地震研究所研制,中国地震局监测预报司监制,地震前兆信息系统[EIS2000].
[7]中国地震局地下流体学科技术管理组,2005年度地下流体学科观测资料全国统评办法.2006,3.
[8]刘春国,地下流体固体潮调和分析程序.2003,2.
[9]中国地震局台网中心,国中地震前兆台网运行评价系统V1.0.2007,8.
[10]张素欣,张子广,刘俊明,等.数字化水位观测资料的应用研究[J].地震,2002,22(4):89-93.
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[2]中国地震局.地震及前兆数字观测技术规范(地下流体)[M].地震出版社,2001.
[3]广西地震局.广西壮族自治区监测志[M].2004.
[4]中国地震局科技监测司.地震地下水手册[M].北京:地震出版社,1995.
[5]中国地震局预测研究所,LN-3A数字水位仪使用说明书[M].2006,05.
[6]蒋骏,李胜乐,等,中国地震局地震研究所研制,中国地震局监测预报司监制,地震前兆信息系统[EIS2000].
[7]中国地震局地下流体学科技术管理组,2005年度地下流体学科观测资料全国统评办法.2006,3.
[8]刘春国,地下流体固体潮调和分析程序.2003,2.
[9]中国地震局台网中心,国中地震前兆台网运行评价系统V1.0.2007,8.
[10]张素欣,张子广,刘俊明,等.数字化水位观测资料的应用研究[J].地震,2002,22(4):89-93.
[11]万登堡.井孔水位记震能力变化与近大地震关系研究[J].地震研究,1992,15(4):381-391.
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