| 山洪对银川基准台形变观测数据的干扰分析 |
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| 引用本文： | 王建亮,李自芮,张燕霞,沈宁,栾博文.山洪对银川基准台形变观测数据的干扰分析[J].防灾减灾学报,2020(1):33-38. |
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| 作者姓名： | 王建亮 李自芮 张燕霞 沈宁 栾博文 |
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| 作者单位： | 银川基准台;宁夏自治区地震局;固原地震台 |
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| 摘 要： | 前兆观测是地震预报研究的重要手段之一,对于环境的变化极为敏感,通过对银川基准台滚钟口观测站近三年来(2016—2018)的山洪统计分析,总结出山洪对台站形变观测仪器(DSQ水管倾斜仪和SS-Y洞体应变仪)在一定程度上的干扰特点,并通过一阶差分、斜率分析和潮汐因子的分析手段,找出数据曲线受山洪影响的变化特征,分析产生影响的机制,以便更好的排除干扰,捕捉地震前兆异常。
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| 关 键 词： | 山洪 形变观测数据 曲线特征 排除干扰 |
The Interference Analysis of Mountain Torrent on Deformation Observation Data of Yinchuan Reference Station |
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| WANG Jian-liang,LI Zi-rui,ZHANG Yan-xia,SHEN Ning,LUAN Bo-wen.The Interference Analysis of Mountain Torrent on Deformation Observation Data of Yinchuan Reference Station[J].Seismological Research of Northeast China,2020(1):33-38. |
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| Authors: | WANG Jian-liang LI Zi-rui ZHANG Yan-xia SHEN Ning LUAN Bo-wen |
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| Institution: | (Yinchuan Reference Seismic Station,Ningxia Yinchuan 750000,China;Earthquake Administration of Ningxia Hui Autonomous Region,Ningxia Yinchuan 750000,China;Guyuan Seismic Station,Ningxia Guyuan 756000,China) |
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| Abstract: | Precursor observation is one of the important means of earthquake prediction research.It is extremely sensitive to environmental changes.This paper summarizes the torrents by analyzing the statistics of the mountain torrent of the Yinchuan reference station in the past three years(2016—2018).The station deformation observation instrument(DSQ Water Tube Tiltmeterand SS-Y Hole strain instrument)has a certain degree of interference characteristics,and through the means of the first-order difference analysis and the slope analysis and the tidal factor,find out the abnormal characteristics of the data curve affected by mountain torrents,analyze the causes for the impact,and draw conclusions in order to eliminate interference for capturing accurate earthquake precursor anomalies. |
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| Keywords: | mountain torrent deformation observation data curve feature eliminate interference |
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