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静乐井SWY­Ⅱ和LN­3A水位仪的对比分析
胡玉良1,2) 程冬焱1,2) 李惠玲1,2) 穆慧敏1,2) 郭宇3) 刘俊芳3)
1)山西省地震局,山西省太原市旧晋祠路二段69号 030021;2)太原大陆裂谷动力学国家野外科学观测研究站,太原 030025;3)山西省地震局定襄地震台,山西定襄 035400
摘要:
对静乐井SWY-Ⅱ水位仪和LN-3A水位仪从稳定性、数据一致性、内在质量、系统漂移、水震波、气压效应、自然环境干扰7方面进行了对比分析,结果显示:①SWY-Ⅱ水位仪和LN-3A水位仪运行稳定;②两套仪器观测数据一致性较好;③两套仪器测量精度均优于0.001m,平均值一致性较好。④通过计算分钟值数据,两套仪器M2波潮汐因子及其观测精度较为接近;⑤通过与SW40-1水位仪进行对比,两套仪器均存在不同程度系统漂移;⑥两套仪器分钟值数据记录水震波时间及振幅差异明显;⑦两套仪器的气压效应、受自然环境干扰影响较为一致。
关键词:  对比观测  一致性  统计学  漂移  水震波
DOI:
分类号:
基金项目:中国地震局监测预报司“三结合”项目(150403)资助
Contrast analysis on the SWY­Ⅱ and the LN­3A instruments at the Jingle well
Hu Yuliang1,2) Cheng Dongyan1,2) Li Huiling1,2) Mu Huimin1,2) Guo Yu3) Liu Junfang3)
1)Earthquake Administration of Shanxi Province,Taiyuan 030021,China;2)State Key Observatory of Shanxi Rift System,Taiyuan 030025,China;3)Dingxiang Seismic Station of Earthquake Administration of Shanxi Province,Dingxiang 035400,Shanxi,China
Abstract:
In the paper,the SWY-Ⅱ and the LN-3A instruments are contrasted from the seven aspects of stability,data consistency,internal quality,systematic drift,water-seismic waves,barometric effect and natural environment interference at the Jingle well. The main conclusions are as follows: ①The two digital instruments are stable. ②The observation data of the SWY-II instrument coincided with the LN-3A instrument. ③The measurement accuracy of two instruments is basically the same. There is a good identity in the mean consistency of the two instruments. ④There is little difference in the tidal factor of M2 wave and the observation precision between the two instruments. ⑤The two instruments have systematic drift in varying degrees. ⑥There is a big difference in the vibration time and the ranges of the water-seismic waves between the two instruments. ⑦There is little difference in the barometric effect and the natural environment interference between the two instruments.
Key words:  Comparative observation  Consistency  Statistics  Drift  Water­seismic waves