| 蒙城台磁偏角非正常变化与地震前兆异常的分析与研究 |
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| 引用本文： | 刘义高,郑志坤,汪继林,刘红飞,陆栋梁,吴辉.蒙城台磁偏角非正常变化与地震前兆异常的分析与研究[J].灾害学,2005,20(2):89-91. |
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| 作者姓名： | 刘义高 郑志坤 汪继林 刘红飞 陆栋梁 吴辉 |
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| 作者单位： | 安徽省地震局,安徽,合肥,230031 |
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| 摘 要： | 蒙城地磁台相对观测磁偏角自2003年8月起,变化较大.运用上海佘山地磁台的资料作对比分析,发现相对观测磁偏角除地磁场的长期变化外,还存在仪器机械性漂移.研究结果认为,这种变化可能是受仪器室的物理因素影响的缘故.
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| 关 键 词： | 蒙城地磁台 磁偏角 "年变" 地震异常 |
| 文章编号： | 1000-811X(2005)02-0089-03 |
| 修稿时间： | 2004年11月6日 |
Study and Analysis on Abnormal Changes in Magnetic Declination and Earthquake Precursory Anomaly at Mengcheng Magnetic Station |
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| LIU Yi-gao,ZHEN Zhi-kun,WANG Ji-lin,LIU Hong-fei,LU Dong-liang,WU Hui.Study and Analysis on Abnormal Changes in Magnetic Declination and Earthquake Precursory Anomaly at Mengcheng Magnetic Station[J].Journal of Catastrophology,2005,20(2):89-91. |
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| Authors: | LIU Yi-gao ZHEN Zhi-kun WANG Ji-lin LIU Hong-fei LU Dong-liang WU Hui |
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| Abstract: | From August, 2003, the changes in magnetic declination of relative observation are large than that before at Mengcheng magnetic station. The contrast analysis of the data of Mengcheng magnetic station with that of Shanghai Sheshan magnetic station shows that, for relative observation of magnetic declination at Mengcheng station, in addition to the long-term relative change of earth's magnetic field, there also exists mechanical drift of instrument and magnetic declination variation at Mengcheng station may attribute to physical factors of observation house. |
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| Keywords: | Mengcheng magnetic station magnetic declination "annual fluctuation" earthquake precursory |
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