(2011) gravimetry (Rybakov et al., 2001), ground-penetrating radar Friedel et al. Magnetic susceptibility and electrical resistivity. Investigations include but not limited to density, Properties that are always explored during geophysical Through the observation of the contrasts in the physical Geophysical methods can be used to examine orĭelineate subsurface features. Keywords: 2D, 3D, Subsurface Feature, Target, Standard Constraint, Robust Constraint Subsurface feature can only be effectively delineated if the feature is not deeply buried into the subsurface. Getting information about the dimension and orientation of the target. The result obtained from the inversion of the 3D data has assisted us in
The inversion of the 3D data gave 3D resistivity sections which were Resistivities, the robust constrain inversion algorithm technique gives better boundaries resolution irrespective This suggests that if there is a significant contrast in the subsurface layers’ In addition to this, the boundary between the entrapped air and the concrete pipe was With the robust constrain inversion technique the target was also successfully mapped by all However, only the dipole-dipole array was able to resolve the boundary between the concrete pipe and theĮntrapped air. Standard constrains inversion technique showed that all the three array configurations mapped the target Hand, when the electrode spacing of 0.5 m was used for the data collection, the results obtained with the Good subsurface model is not a guarantee that subsurface features are successfully mapped. The resultsįurther show that the attainment of RMS error of less about 10% which usually gives the indication of a Of the three array types was able to map the target with either of the two inversion techniques. The results obtained showed that when the electrode spacing of 1.5 m was used for the investigations, none using the Dipole-Dipole, the Wenner and the Wenner-Schlumberger array configurations. 2D resistivity data was separately collected with the electrode spacings ofġ.5 m and 0.5 m. The target being investigated was theĭrainage concrete pipe buried at approximately 0.3 m into the subsurface. In this study, the effect of the choice of appropriate electrode spacing and inversion algorithms on theĮfficacy of 2D imaging to map subsurface features was investigated. School of Physics, University Sains, Malaysia, 11800 Penang, Malaysia Khiruddin Abdullah, Ishola Kehinde Saheed and Abdulrahman Abdullah
RES2DINV - 2D Geophysical Inversion Software for Resistivity and Induced Polarization data Download legacy version: RES2DINV ver.3.59 and Manual.Doi:10.3844/ajassp.2013.64.72 Published Online 10 (1) 2013 ()Ĭorresponding Author:Adiat Kola Abdul-Nafiu, School of Physics, Universiti Sains, Malaysia, 11800 Penang, MalaysiaĮFFECTS OF ELECTRODE SPACING AND INVERSION TECHNIQUES ON THE EFFICACY OF 2D RESISTIVITY IMAGING TO DELINEATE SUBSURFACE FEATURESĪdiat Kola Abdul-Nafiu, Mohd.
Please note RES2DINV and RES3DINV are not free software.
DAT Main inversion program Manual in PDF format Windows Help file for this program Registration file An В Res2DInv (general) (обобщенном формате) программы двумерной инверсии Res2dInv. 50 8.8 Concatenate data into RES2DINV format.
Here, we will only Using RES2DMOD and RES2DINV to Explore Electrical Resistivity Results programs, the manuals are detailed and good as are the help documents available RES2DINV is a computer program which will automatically determine a two- EXE program once after installing the RES2DINV program. interfere with the operation of the RES2DINV program if you are inverting a large data the cell-based method used by the RES2DINV and RES3DINV programs, the model values is described in detail in the RES2DINV manual. Data import : This program instructions for using the software and should be used as the manual. If the RES2DINV and RES3DINV software are already installed in your computer, you will need to inversion" section of this manual. List of files installed with the RES2DINV圆4 program.
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