ABSTRACT
Geophysics for hydrogeology plays an important role in groundwater investigation. It is necessary in the stage of regional, medium or large scale regional geological reconnaissance. However, confined by the capability of instruments, which are built on the basis of different method, the inversion of sounding could only reach to the stage of reasonably conclusion. Recent years, with the rapid development in the field of geophysics, some high accuracy and stability means have been introduced into groundwater exploration. They are capable of decreasing uncertainty which is frequently occurred in some routine means. To an extent, they are able to conduct accurate geophysical exploration and increase efficiency of geological reconnaissance greatly.
