| 后土桥台数字化地磁前兆异常的研究 |
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| 引用本文： | 解用明,郭建芳,张跃刚,鞠永,韩和平.后土桥台数字化地磁前兆异常的研究[J].高原地震,2005,17(4):24-29. |
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| 作者姓名： | 解用明 郭建芳 张跃刚 鞠永 韩和平 |
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| 作者单位： | 河北省地震局,河北,石家庄,050021;河北省地震局后土桥地震台,河北,昌黎,066611;河北省地震局丰宁地震台,河北,丰宁,068350;河北省地震局阳原地震台,河北,阳原,075800 |
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| 基金项目： | 河北省地震局“数字化资料的应用研究”课题资助. |
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| 摘 要： | 利用后土桥台地磁数字化资料，分析了磁通门所观测的分钟值日变形态，计算了5日幅值比和日幅值比。结果显示，往往地震前5日幅值比会出现高值异常，同时日幅值比也会出现一簇异常，且有逐渐增高趋势。结果表明，利用地磁数字化的高频资料进行地震短临预测预报具有一定的意义。
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| 关 键 词： | 后土桥台 数字化 幅值比 |
| 文章编号： | 1005-586X(2005)04-0024-06 |
| 收稿时间： | 07 31 2005 12:00AM |
| 修稿时间： | 12 25 2005 12:00AM |
STUDY ON THE GEOMAGNETIC ANOMALIES OBSERVED BY HOUTUQIAO DIGITAL SEISMOSTATION |
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| XIE Yong-ming,GUO Jian-fang,ZHANG Yue-gang,JU Yong,HAN He-ping.STUDY ON THE GEOMAGNETIC ANOMALIES OBSERVED BY HOUTUQIAO DIGITAL SEISMOSTATION[J].Plateau Earthquake Research,2005,17(4):24-29. |
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| Authors: | XIE Yong-ming GUO Jian-fang ZHANG Yue-gang JU Yong HAN He-ping |
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| Institution: | 1. Earthquake Administration of Hebei Province, Shijiazhuang 050021, China ; 2. Houtuqiao Seismostation of Hebei Province, Chanli 066611, China ; 3. Fengning Seismostation of Hebei Province, Fenging 068305, China ; 4. Yangyuan Seismostation of Hebei Province, Yangyuan 075800, China |
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| Abstract: | The daily variation of digital geomagnetic data observed by Fluxmeter in Houtuqiao seismostation is analyzed , and its 5 - day amplitude- ratio and daily- amplitude - ratio are calculated. The results show that 5 - day- amplitude- ratio usually shows high value anomalies, and daily - amplitude - ratio also shows a cluster of anomalies with an increasing tendency. This feature is significant to the application of high frequency digital geomagnetic data and earthquake prediction. |
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| Keywords: | Houtuqiao seismostation Digitization Amplitude ratio |
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