Experimental Observation and Preliminary Data Analysis of Vertical Geo-Electric Field
详细信息
- 责任者：Wang Lanwei (Institute of Crustal Dynamics ; China Earthquake Administration ; Beijing 100085 ; China) ; Zhang Shizhong
- 刊名：Acta Seismologica Sinica
- 出版年：2011
- 卷期：33(4)
- 关键词：地电场 ; geoelectric field
- 页码：p.461-470
- 图表：illus., 1 table, 11 refs.
- 分类号：1600
- issnNo：ISSN0253-3782
- isbnNo：CN11-2021/P
摘要
Since April 2009, the authors have set up three vertical geo-electric field observation sites at Songshan, Huangyangchuan and Hongshawan in Tianzhu region, Gansu Province. It is the first time to do this kind of study in China. For one year’s measurement the vertical geo-electric data display a long-term fluctuation and a strong diurnal variation. The diurnal variation amplitude is about 16 mV/km in Songshan and Huangyangchuan, and 8 mV/km in Hongshawan. By spectrum analysis, the authors found that the amplitude of the 24 h period component is the largest and the 12 h period ones is secondary in vertical geo-electric diurnal variation.