Numerical modeling of subaqueous induced polarization sounding using the finite element method is discussed.Based on this,the anomaly features and the range of application of subaqueous induced polarization sounding are studied. Subaqueous DC resistivity and IP sounding can be used to detect geologic bodies in close quarters to improve the resolving power.But DC resistivity sounding is influenced by terrain of water-bottom.The results of numerical modeling of subaqueous induced polarization show that the to...