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Tan J Y，Li L P，Sun J S. 2023. A method for locating interference source by long-and-short polar distance ratio and its practical application in geoelectric field observation. Acta Seismologica Sinica，45（4）：685−694. DOI: 10.11939/jass.20220047
Citation: Tan J Y，Li L P，Sun J S. 2023. A method for locating interference source by long-and-short polar distance ratio and its practical application in geoelectric field observation. Acta Seismologica Sinica，45（4）：685−694. DOI: 10.11939/jass.20220047
shu

A method for locating interference source by long-and-short polar distance ratio and its practical application in geoelectric field observation

  • 1.

    Jiangsu Earthquake Agency，Nanjing 210014，China

  • 2.

    Guangdong Hydrogeology Battalion，Guangzhou，China

More Information
  • Received Date: April 05, 2022
  • Revised Date: August 10, 2022
  • Available Online: June 29, 2023
  • Published Date: July 14, 2023
    Graphical Abstract
    • Abstract
  • The long and short pole distance ratio method in geoelectric observation is employed here to locate the near-surface disturbance sources, on the assumption of a uniform half-space model and that the near-surface disturbance is a point source. The disturbance sources of different locations can cause different increments in the long-pole-distance and short-pole-distance geoelectric field at the same direction, which is the key mind of this method. By combining multi-directional long-and-short pole distance ratios in geoelectric field, we successfully applied this method into locating the disturbance sources of the leakage at Xuzhuangzi station and the dipole source test at Gaoyou station. The results show that the point source producing the interference in geoelectric field at Xuzhuangzi station can be effectively located, and one electrode of the dipole source can be discovered in the Gaoyou station test as well.
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    • References (23)
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