菏泽地电台电极改造前后观测数据对比研究

Comparative study on observation data before and after reconstruction of Heze ground station electrodes

菏泽地电台观测环境良好,观测数据能够比较真实的反应地电场强度的变化。但是由于电极在使用达到一定年限后易出现老化现象,影响观测数据精确度。菏泽地电台先后两次对测区内电极进行更换并进行了线路改造,研究结果表明:2010年对电极进行铅电极改造后相关系数明显提高,观测精度有所改善;在2015年11月的不极化电极改造中,效果并不理想,改造前后观测数据无明显变化;在2016年4月对外线路进行改造后,地电场观测数据得到明显改善。

The observation environment of Heze radio station is good,and the observation data can truly reflect the change of the geoelectric field intensity.However,since the electrode is prone to aging after a certain period of use,the accuracy of the observation data is affected.The Heze Radio Station has replaced the electrodes in the survey area twice and carried out circuit reconstruction.The research results show that:after the lead electrode reconstruction was carried out on the electrodes in 2010,the correlation coefficient was significantly improved,and the observation accuracy was improved;In the transformation of polarized electrodes,the effect is not ideal,and there is no obvious change in the observation data before and after the transformation;after the transformation of the external line in April 2016,the observation data of the geoelectric field has been significantly improved.