Application of DOI index to analysis of selected examples of resistivity imaging modelsin Quaternary sediments

In ter pre ta tion of re sis tiv ity cross sec tions may be in many cases un re li able due to the pres ence of ar ti facts left by the in ver sion pro cess. One way to avoid er ro ne ous con clu sions about geo log i cal struc ture is cre ation of Depth of In ves tiga tion (DOI) in dex maps, which de scribe du ra bil ity of pre pared model with re spect to vari able pa ram e ters of in ver - sion. To as sess the use ful ness of this in ter pre ta tion meth od ol ogy in re sis tiv ity im ag ing method over qua ter nary sediments, it has been used to one syn thetic data set and three in ves ti ga tion sites. Two of the study ar eas were placed in the Up per Silesian In dus trial Dis trict re gion: Bytom–Karb, Chorzów–Chorzów Stary; and one in the South ern Pom er a - nian Lake Dis trict across Pi³awa River Val ley. Bas ing on the avail able geo log i cal in for ma tion the re sults show high util ity of DOI in dex in anal y sis of re ceived re sis tiv ity mod els, on which ar eas poorly con strained by data has been des - ig nated.