| 河南地磁短周期变化特征 |
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| 引用本文： | 姚同起,范国华,韩克礼.河南地磁短周期变化特征[J].地震地磁观测与研究,1999,20(6):15-21. |
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| 作者姓名： | 姚同起 范国华 韩克礼 |
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| 作者单位： | 中国北京,100081,中国地震局地球物理研究所 |
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| 摘 要： | 为了研究河南地区地磁短周期变化的特征，１９９６年１０月至１１月在该地区布设了近似南北向的两条临时测线，东测线由河南信阳至汤阴，西测线由河南西峡至山西曲沃，在测线上进行了地磁短周期变化三分量的同步观测，在３ｍｉｎ至２ｈ周期范围内统计计算了各测点各周期成分的地磁垂直转换函数及水平转换函数，通过地磁转换函数的分析，给出了该地区地磁短周期变化空间，周期分布概况。西峡至曲沃测线，除曲沃外垂直分量没有出现反向
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| 关 键 词： | 地磁垂直转换函数 地磁水平转换函数 地磁变化椭圆 |
The characteristics of geomagnetic short period variations in Henan region |
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| Yao Tongqi,Fan Guohau,Han Keli.The characteristics of geomagnetic short period variations in Henan region[J].Seismological and Geomagnetic Observation and Research,1999,20(6):15-21. |
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| Authors: | Yao Tongqi Fan Guohau Han Keli |
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| Institution: | Yao Tongqi,Fan Guohau and Han Keli;(Institute of Geophysics,China
Seismological Bureau,Beijing 100081,China) |
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| Abstract: | In order to investigate the characteristics of geom agnetic short period variations in Henan region,tw o tem porary m easurem entprofiles along nearly N-Sdirection w ere setup from Octto Nov of1996 in this region. The eastern profile w as from Xinyang to Tangyin in Henan, and another profile w as from Xixia in Henan to Quw o in Shanxi. Sim ultaneous observation of three com ponents of geom agnetic short period variations w ere carried out respectively along the tw o profiles. The geom agnetic verticaltransfer functions and hori- zontaltransfer functions ofeach period segm entateach site in the period range from 3 m in to 2 h w ere statistically calculated.Through the analysis ofthe geom agnetic transferfunc- tions, the general situation of the spatial and periodic distributions of the geom agnetic shortperiod variations w as given.In Xixia to Quw o profile,the reverse ofthe verticalvari- ations doesn't occur except Quw o, and the vertical variations have m axim um at Lingbao and Shanxian. Along the Xinyang to Tangyin Profile, the verticalvariations have larger am plitude and opposite in the localarea ofZhengzhou and Huixian. |
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| Keywords: | geom agnetic verticaltransfer function geom agnetic horizontaltransfer func- tion geom agnetic variation ellipse |
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