Preface to the special issue on the international workshop on electromagnetic studies of earthquakes and volcanoes in 2016Du Xuebin, Jacques Zlotnicki, Huang Qinghua, Shen Xuhui451-454
Regional characteristics of artificial source geoelectric field spatial variationsMa Qinzhong, Li Wei, Zhao Wenzhou, Zhou Jiangnan, Gong Yao455-468
Inversion of geoelectrical resistivity observed with multi-separation of electrodesMao Xianjin, Yang Lingying, Duan Wei, Zhao Jinmin, Zhuang Ruxin, Qian Jiadong469-477
Experimental studies on the changes of rock resistivity image and anisotropyZhang Bin, Zhu Tao, Zhou Jianguo478-494
Long-term trending variation of georesistivity and its implication to earthquake predictionShen Honghui, Wang Li, Wang Wei, Li Hongyu, Sun Chunxian, Ye Biwen495-505
Georesistivity observational experiment based on encoded sourceGao Shude, Luo Weibin, Su Yonggang, Liang Zibin, Li Xusheng, Han Ying, Sun Haiyang506-519
The finite element modelling of iron interference on earth resistivity of Yanqing stationWang Tongli, Li Yan, Wu Xiaodong, Cui Bowen, Li Juzhen, Wang Lihong520-530
Processing methods for the observation data of georesistivity in earthquake predictionDu Xuebin, Sun Junsong, Chen Junying531-548
Quantitative verification on satellite observational data of ionospheric structure parameters using ground-based dataYan Rui, Wang Lanwei, Hu Zhe, Liu Dapeng549-557
Application of polarization method to geomagnetic data from the station ChengduHe Chang, Feng Zhisheng558-564