| 香港台地磁长期变中的加速度阶跃 |
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| 引用本文： | 陈伯舫.香港台地磁长期变中的加速度阶跃[J].华南地震,1996,16(2):16-19. |
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| 作者姓名： | 陈伯舫 |
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| 作者单位： | 香港大学物理系，国家地震局地球物理研究所 |
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| 摘 要： | 利用Ｙ＝（Ｙｎ－１＋２Ｙｎ＋Ｙｎ＋１）／４计算香港台１８８４－１９３９年Ｙ的年变率，结果显示１２７年存在一个非常明显的ｊｅｒｋ。用同样方法处理Ｘ和Ｚ分量的资料，大致可看出１９０３．５，１９１２．５和１９２６年有三个ｊｅｒｋ，总的说来与Ａｌｅｘａｎｄｒｅｓｃｕ等（１９９５）＾７的结果基本上是一致的。
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| 关 键 词： | 地磁 长期变化 香港 地磁台 变化速度 |
STEP-CHANGES IN GEOMAGNETIC SECULAR ACCELERATION ANALYZED FROM THE HONG KONG OBSERVATORY |
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| Chen Pofang.STEP-CHANGES IN GEOMAGNETIC SECULAR ACCELERATION ANALYZED FROM THE HONG KONG OBSERVATORY[J].South China Journal of Seismology,1996,16(2):16-19. |
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| Authors: | Chen Pofang |
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| Abstract: | There is an evident 'jerk' revealed in the year of 1927 after analysing the yearly means of Y-component in the interval of 1984-1939 for Hong Kong obsevatory. The method used for analysing is simply the formula (Yn-1+2Yn+Yn+1) /4. The same analysis is also carried out for the data of X-and Z-components, and the results indicate that three 'jerks' can be found in the years of 1903. 5, 1912. 5 and 1926. In general speaking, these results are basically consistent with the results revealed by Alexandrecu et al (1995). |
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