| 武汉及周边地区数字化形变观测资料质量分析 |
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| 引用本文： | 吕琳,孙伶俐,蒋玲霞,解杨春,陈慧杰.武汉及周边地区数字化形变观测资料质量分析[J].地震地磁观测与研究,2019,40(2):97-102. |
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| 作者姓名： | 吕琳 孙伶俐 蒋玲霞 解杨春 陈慧杰 |
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| 作者单位： | 中国武汉 430071 中国地震局地震研究所(地震与大地测量重点实验室);中国武汉 430071 湖北省地震局;中国武汉 430071 中国地震局地震研究所(地震与大地测量重点实验室);中国武汉 430071 湖北省地震局;中国武汉 430071 中国地震局地震研究所(地震与大地测量重点实验室);中国武汉 430071 湖北省地震局;中国武汉 430071 中国地震局地震研究所(地震与大地测量重点实验室);中国武汉 430071 湖北省地震局;中国武汉 430071 中国地震局地震研究所(地震与大地测量重点实验室);中国武汉 430071 湖北省地震局 |
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| 基金项目： | 中国地震局地震研究所所长基金课题（项目编号：IS201726168）；中国地震局地震监测、预测、科研三结合课题（项目编号：CEA-JC/3JH-161706） |
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| 摘 要： | 对武汉及周边地区2007—2016年数字化形变观测资料进行长期背景跟踪分析,认为形变观测资料的日均变化幅度、M_2波潮汐因子均方差、长周期拟合相对噪声水平等指标变化稳定,资料可信度高,DSQ型水管倾斜仪观测精度与资料稳定性均优于SS-Y型铟瓦棒洞体应变仪。对武汉狮子山及黄石地震台形变观测数据典型变化进行系统总结与跟踪分析,发现主要受到人为干扰(调零、标定)、自然环境(降雨、气压)和观测系统故障等因素影响。
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| 关 键 词： | 形变观测 长趋势对比 数据跟踪分析 干扰因素 |
Analysis of deformation observation data change characteristics in Wuhan and its surrounding area |
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| L&#,Lin,Sun Lingli,Jiang Lingxia,Xie Yangchun,Chen Huijie.Analysis of deformation observation data change characteristics in Wuhan and its surrounding area[J].Seismological and Geomagnetic Observation and Research,2019,40(2):97-102. |
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| Authors: | L&# Lin Sun Lingli Jiang Lingxia Xie Yangchun Chen Huijie |
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| Institution: | 1.Key Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Administration, Wuhan 430071, China;2.Hubei Earthquake Administrator, Wuhan 430071, China |
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| Abstract: | Based on the observation data of the digital deformation instruments from 2007 to 2016 in Wuhan and its surrounding area (including Wuhan Seismic Station and Huangshi Seismic Station), the characteristics of the long-term observation background were described in this paper. The results showed that, the indicators of daily variation, mean square error of M2 wave tide factor and relative noise level were reliable. Furthermore, the observation precision and stability of DSQ water tube tiltmeter were superior to SS-Y strain parameter. In addition, typical variation characteristics of the deformation observation data were summarized at Wuhan Seismic Station and Huangshi Seismic Station. The major influence factors are human disturbance(zero setting, calibration), natural environment (rainfall, air pressure) and the fault of observation system. |
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| Keywords: | deformation observation long-term background data tracking analysis interference factor |
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