A tentative analysis on the geophysical technique which is compatible for groundwater exploration at karst area in Southwest of China

To summarize the main geophysical technique which be used to detect groundwater in China at present.Based on the result of detecting water at Gejiu city in Yunnan province,mainly introduce the EH4 system,then analyze the feasibility which using EH4 system to explore groundwater and the course of data processing and explaining.The direction have been offered for drilling by the exploration conclusion.By the later investigating,the water have been found in the survey area.It is proved that the EH4...