| 低纬地区地磁场谐波特征 |
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| 引用本文： | 张永忠,康国发.低纬地区地磁场谐波特征[J].地震地磁观测与研究,1995,16(4):29-33. |
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| 作者姓名： | 张永忠 康国发 |
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| 作者单位： | 琼中地震台，云南大学地球科学系 |
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| 摘 要： | 利用我国低纬地区琼中、广州和泉州３个地磁台１９８２－１９８９年的地磁静日实测值，分析了Ｈ、Ｚ和Ｙ三个地磁分量的谐波特征。结果表明，①Ｈ、Ｚ两分量的谐波振幅一般在春秋季最大，冬季最小，Ｙ分量的谐波振幅在夏季最大，冬季最小，它们的变化形态基本上与太阳黑子数的变化形态同步；②三分量的相位都受到太阳活动和季节的影响。
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| 关 键 词： | 地磁场 谐和分析 太阳活动 谐波特征 低纬地区 |
The harmonic characteristics of geomagnetic field at low latitudes |
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| Zhang Yongzhong, Kang Guofa.The harmonic characteristics of geomagnetic field at low latitudes[J].Seismological and Geomagnetic Observation and Research,1995,16(4):29-33. |
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| Authors: | Zhang Yongzhong Kang Guofa |
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| Abstract: | In this paper,the geomagnetic quiet-day's variations H.Z.Y of three geomagnetic observatories Qiongzhong,Guangzhou,Quanzhou at low latitudes in China 1982-1989 were analysed,the harmonic characteristics of them were,the amplitudes of horizontal and vertical components are generally maximum during equinox and minmum during winter,the amplitude of eastern component Y is maximum during summer and minmum during winter.Their variation shapes are consistent with sunspot variation shapes.The phases of three components are influenced by different season and solar activity. |
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| Keywords: | geomagnetic field harmonic analysis solar activity |
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