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地震 ›› 2007, Vol. 27 ›› Issue (增刊): 121-130.

• 地电场研究 • 上一篇    下一篇

地电场日变化研究

杜学彬1, 叶青1, 赵杰1, 王娜2, 薛志明3, 史红军4, 马占虎1, 李宁1   

  1. 1.中国地震局兰州地震研究所, 甘肃 兰州 730000;
    2.河北省地震局秦皇岛中心台, 河北 秦皇岛 066611;
    3.安徽省地震局蒙城地震台, 安徽 蒙城 233527;
    4.长春市榆树地震台, 吉林 长春 130400
  • 收稿日期:2006-06-05 修回日期:2006-06-30 出版日期:2007-06-30 发布日期:2021-10-29
  • 作者简介:杜学彬(1956-), 男, 新疆沙湾县人, 研究员, 主要从事地震电磁学等研究。
  • 基金资助:
    国家自然科学基金(40474027)和国家科技基础条件平台重点项目(2004DEA71000)

Study on geoelectric field daily variation

DU Xue-bin1, YE Qing1, ZHAO Jie1, WANG Na2, XUE Zhi-ming3, SHI Hong-jun4, MA Zhan-hu1, LI Ning1   

  1. 1. Lanzhou Institute of Seismology, CEA, Lanzhou 730000;
    2. Central Observatory of Qinhuangdao City, Earthquake Administraction of Hebei Province, Qinhuangdao 066611;
    3. Mengcheng Observatory of Earthquake, Earthquake Administration of Anhui Province, Mengcheng 233527;
    4. Yushu Observatory of Earthquake, Earthquake Administration of Changchun City, Changchun 130400, China
  • Received:2006-06-05 Revised:2006-06-30 Online:2007-06-30 Published:2021-10-29

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摘要： 应用中国大陆30°30′~44°52′N、 98°13′~126°35′E范围内21个地电场观测台站12194天6个测道的分钟值观测数据, 研究了太阳活动平静日地电场日变化(简称“地电日变化”, 下同), 获得多方面认识。 得到两个新认识: ① 地电日变化的幅度随纬度增高而减小, 且与台址电性结构有关; ② 地电日变化幅度的季节性变化对应劳埃德(Loyd)季节, 在J季节地电场日变化幅度最大, E季节其次, D季节幅度最小, 与中纬度地区电流涡旋场总强度随Loyd季节的变化一致。

关键词: 地电场, 太阳活动平静日, 变化, 幅度, 周期, 频谱

Abstract: We studied the geoelectric field daily variation in the quiet day of the solar activity (called as “the geoelectric daily variation” for short) by use of the minute-value data of 12, 194 days from 21 geoelectric field observatories in the range of 98°13′~126°35′E and 30°30′~44°52′N of the mainland of China, the data were recorded by 6 measuring channels at every observatory, and aquired some understandings for the time and spatial regularities of variation and the reason causing the regularities. We obtained the following two new results:① the amplitude of the daily variation obviously decreases when the geographical latitude get higher, and besides, it is related to the underground electric property structure of the observatory; ② The seasonal change of the amplitude approximately accords with the Loyd season in the astronomy that the amplitude is maximal in the J-season, minimal in the D-season, and intermediate in the E-season, which is well in concordance with the changes of the total current intensity of the current vortex field in the middle latitude area of the earth with the three Loyd seasons.

Key words: Geoelectric field, Quiet day of the solar activity, Variation, Amplitude, Period, Frequency spectrum

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