摘要
探讨强烈磁暴刘新沂地震台地电阻率测量的影响。根据磁暴效应,得出对地电阻率的影响,从而进行不同量级磁暴对江苏省新沂地震台地电阻率的影响分析。同时分析各测向产生的差异性及原因。由于新沂地震台地电阻率测量采用正反向双向供电,磁暴对地电阻率的影响量很小,其形态仍存在同步变化。如果采取减少每次测量的供电时间、供电次数,加大供电电流,磁暴刈地电阻率的影响应明显的降低,其影响进而转化为地电阻率均方差变化。
In this paper, the influence of strong magnetic storms on the terrestrial resistivity survey at the Xinyi Seismic Station is discussed. According to effect of geomagnetic storm, its influence on terrestrial resistivity is obtained. The influence of magnetic storm with different magnitude on the terrestrical resistivity observation at Xinyi station is analyzed. The difference caused in different measure direction and the reasons is also analyzed.
出处
《地震地磁观测与研究》
2011年第4期35-39,共5页
Seismological and Geomagnetic Observation and Research
关键词
磁暴效应
地电阻率
补偿
geomagnetic storm effect, terrestrial resistivity, compensation
