| 北京及邻区地磁总场频谱的分析研究 |
| |
| 引用本文： | 张玉敏,高金田,詹志佳.北京及邻区地磁总场频谱的分析研究[J].西北地震学报,2004,26(4):374-376. |
| |
| 作者姓名： | 张玉敏 高金田 詹志佳 |
| |
| 作者单位： | 中国地震局地球物理研究所,北京,100081 |
| |
| 基金项目： | 中国地震局地球物理研究所论著:04AC1028 |
| |
| 摘 要： | 应用北京及邻区2min采样的地磁总场观测资料，分析了北京台与各临时台地磁总场的频谱特性与频谱幅比的时空变化。结果显示，该地区地磁总场的频谱幅度随周期增大呈下降趋势；各临时台与北京台的频谱幅比具有一定的时空变化，可能与该地区地下电磁结构、地震及构造活动有关。
|
| 关 键 词： | 北京地区 地磁总场 频谱 快谱分析 |
| 文章编号： | 1000-0844(2004)04-0374-03 |
| 收稿时间： | 2004/3/30 0:00:00 |
| 修稿时间： | 2004年3月30日 |
ANALYSIS ON SPECTRUM OF GEOMAGNETIC TOTAL FIELD IN BEIJING AND ITS ADJACENT AREAS |
| |
| Zhang Yu-min,Gao Jin-tian and Zhan Zhi-jia.ANALYSIS ON SPECTRUM OF GEOMAGNETIC TOTAL FIELD IN BEIJING AND ITS ADJACENT AREAS[J].Northwestern Seismological Journal,2004,26(4):374-376. |
| |
| Authors: | Zhang Yu-min Gao Jin-tian and Zhan Zhi-jia |
| |
| Institution: | Institute of Geophysics, China Earthquake Administration, Beijing 100081, China,Institute of Geophysics, China Earthquake Administration, Beijing 100081, China and Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
| |
| Abstract: | Based on the data of 2 min geomagnetic total field observation in Beijing and its adjacent areas,the frequency spectrum characteristic and the time-space variation of amplitude ratio of frequency spectrum for Beijing station and other 11 temporal stations are analyzed.The results show that the spectrum amplitude of geomagnetic total field in this area appears decreasing tendency with the increasing of period.The amplitude ratio of spectrum between temporal stations and Beijing station varies with time-space changes,which may be related to the underground electromagnetic structures,earthquakes and tectonic activities in this area. |
| |
| Keywords: | Beijing area Geomagnetic total field Frequency spectrum Fast Fourier analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北地震学报》浏览原始摘要信息 |
| 点击此处可从《西北地震学报》下载免费的PDF全文 |
|
