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地震 ›› 2011, Vol. 31 ›› Issue (4): 125-132.

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吉林地区地电场变化特征分析研究

史红军1, 席继楼2   

  1. 1.榆树地震台, 吉林 榆树 130400;
    2.中国地震局地震预测研究所, 北京 100036
  • 收稿日期:2011-05-13 修回日期:2011-06-17 出版日期:2011-10-31 发布日期:2021-09-09
  • 作者简介:史红军(1972-), 男, 吉林榆树人, 高级工程师, 主要从事地震监测及分析预报研究。
  • 基金资助:
    中国地震局2010年度“三结合”课题资助

Analysis of the Characteristics of Geoelctrical Field Changes in the Jilin Region

SHI Hong-jun1, XI Ji-lou2   

  1. 1. Yushu seismic station, Yushu Jilin 130400, China;
    2. Institute of Earthquake Science, CEA, Beijing 100036, China
  • Received:2011-05-13 Revised:2011-06-17 Online:2011-10-31 Published:2021-09-09

摘要: 本文在初步介绍了吉林地区地电场观测台网基本概况的基础上, 对该区域记录到的地电场的基本变化特征进行了统计分析。 研究表明: ① 绝大部分台站记录到了比较典型的地电场静日变化, 主要表现为“峰—谷—峰”形态, 该变化形态在时间上具有同步性; ② 所有台站均记录到了比较明显的地电暴同步变化, 呈近似南北分布的几个台站记录到了微弱磁扰的同步变化; ③ 地电场日变化幅度呈现比较明显的年变化规律, 不同台站的地电场日变化幅度具有一定的差异性; ④ 正常工作状态下, 各个台站之间同测向观测数据具有比较好的相关性。

关键词: 地电场, 变化特征, 吉林地区

Abstract: In this paper we first introduced the geoelectric field observation network in Jilin region, and then statistically analysed the basic characteristics of the observed geoelectric field changes. The results show that: ① The typical daily variations of geoelectric field are recorded at most of stations as the type of “peak-valley-peak”, and the morphological changes are simultaneous in time; ② The obvious simultaneous changes during the electrical storm are recored at all the stations, and the simultaneous changes during weak magnetic disturbance at several stations of approximate north-south distribution ; ③ It is obvious that the change range of geoelectric field follows a annual change pattern, and the variation ranges differ from each other; ④ Under normal state, the results of data correlation in the same direction between stations are good.

Key words: Geoelectric field, Changing characteristics, Jilin region

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