| 两台地磁场垂直分量日变形态的位相关系分析 |
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| 引用本文： | 陈冠冕,王鼎盛.两台地磁场垂直分量日变形态的位相关系分析[J].地球物理学报,1979,22(1):56-65. |
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| 作者姓名： | 陈冠冕 王鼎盛 |
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| 作者单位： | 中国科学院物理研究所 |
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| 摘 要： | 本文用最大相关时间描写两台地磁场垂直分量日变形态的位相关系。通过恰当的数据处理方式,从两台（北京台和武汉台）地磁垂直分量的整点值计算出最大相关时间。它的平均值等于两台的地方时差。此外最大相关时间还有明显的以年为周期的季节性变化,变化幅度约为0.7小时。对最大相关时间作了傅氏分析,结果表明它含有周期为29.8±0.6天和13.7±0.2天,振幅约为0.06小时的周期变化。
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| 关 键 词： | 位相关系 最大相关 日变形态 地磁垂直分量 台地 相关函数 微商 平均年 样点数 傅氏分析 |
| 收稿时间： | 1978-02-24 |
ANALYSIS OF PHASE RELATION BETWEEN THE DAILY VARIATIONS OF THE VERTICAL COMPONENT OF THE GEOMAGNETIC FIELD AT TWO STATIONS |
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| CHEN GUAN-MIAN,WANG DING-SHENG.ANALYSIS OF PHASE RELATION BETWEEN THE DAILY VARIATIONS OF THE VERTICAL COMPONENT OF THE GEOMAGNETIC FIELD AT TWO STATIONS[J].Chinese Journal of Geophysics,1979,22(1):56-65. |
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| Authors: | CHEN GUAN-MIAN WANG DING-SHENG |
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| Institution: | Institute of Physics, Academia Sinica |
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| Abstract: | A new quantity -maximum correlation time-is introduced to describe thephase relation between the daily variations of the vertical component of geomagnetic field at two stations. The maximum correlation time is computed by using adequate data processing technique from the hourly readings of vertical component at the Peking and Wuhan stations. The mean value of the maximum correlation time is shown to be nearly equal to the difference of local times for these stations. Moreover, it exhibits remarkable seasonal variation which has a period of one year and ranges to about 0.7 hour. Fourier analysis of the maximum correlation time shows that it also conta-ins two appreciable harmonics with periods 29.8 ± 0.6 and 13.7 ± 0.2 days respectively,, and with amplitudes of about 0.06 hour for both harmonics. |
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