| 地磁实测值与IGRF计算值的差异的变化 |
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| 引用本文： | 陈伯舫. 地磁实测值与IGRF计算值的差异的变化[J]. 华南地震, 2007, 27(1): 15-20 |
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| 作者姓名： | 陈伯舫 |
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| 作者单位： | 中国香港元朗怡丰花园B座26楼3室,中国香港 |
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| 基金项目： | 本文的资料取自网上.在此,对世界资料中心A和资料中心C1（丹麦）表示感谢. |
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| 摘 要： | 选择了北京、关岛等6个地磁台,作它们的观测值与IGRF值之差随时间的变化曲线,结果发现,以上6台站地磁测值的异常变化都与附近发生的大震相关,而且震级越大、离台站越近,异常变化越大、越早.而且用IGRF作参考场既可靠又方便.
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| 关 键 词： | 地磁台观测值 IGRF值 震磁关系 |
| 文章编号： | 1001-8662（2007）01-0015-06 |
| 收稿时间： | 2007-01-16 |
| 修稿时间： | 2007-01-16 |
Time Changes in the Differences of Geomagnetic Field between the Observation Values and the IGRF Values |
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| CHEN Bofang. Time Changes in the Differences of Geomagnetic Field between the Observation Values and the IGRF Values[J]. South China Journal of Seismology, 2007, 27(1): 15-20 |
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| Authors: | CHEN Bofang |
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| Affiliation: | Flat 3 26/F BLK B, Yee Fung Gdn, Yuen Long NT, Hong Kong, China |
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| Abstract: | The curves of time changes in the differences of geomagnetic field between the observation values and the IGRF values were drawn by selecting the observation data from six geomagnetic observatories including Beijing and Guam. The result shows that the anomalous change of the geomagnetic observation values from the six observatories above related to the strong earthquakes nearby, the higher the magnitude, the closer to the observatories the epicenter, the greater and earlier the anomalous changes. Moreover, it is reliable and convenient to use the IGRF values as aereference field. |
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| Keywords: | Observation values IGRF values Seismo-magnetic effect |
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