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Res2dinv guide RES DINVx ver with multi-core support RES DINVx ver with -bit support for Windows XP Vista Installation and getting started users guide August Rapid -D Resistivity I P inversion using the least- squares method Wenner ?? ? ?? inline dipole-d

RES DINVx ver with multi-core support RES DINVx ver with -bit support for Windows XP Vista Installation and getting started users guide August Rapid -D Resistivity I P inversion using the least- squares method Wenner ?? ? ?? inline dipole-dipole pole-pole pole-dipole equatorial dipole-dipole WennerSchlumberger gradient and non- conventional arrays On land aquatic and cross-borehole surveys www geotomosoft com Cii Notice of Copyright RES DINV is copyrighted by ?? Geotomo Software - All rights reserved No part of this document may be reproduced without written permission of Geotomo Software Important Notice We cannot provide free replacements for lost or stolen dongles that were in the possession of the end user Please contact geotomo gmail com for the cost of a new dongle if it was lost or stolen Dongles should be treated in the same way as any physical assets such as computers and insurance should be taken out in case it is lost or stolen Ciii Table of Contents Topic Page No Introduction Computer system requirements Copy protection Software installation Using the program ?? a quick start DISCLAIMER SUPPORT References Civ List of Figures Figure Sequence of measurements to build up a pseudosection using a computer controlled multi-electrode survey setup Figure Typical display output showing the measured and calculated apparent resistivitypseudosections and the inversion model section C Introduction This is a very brief guide to help you in installing and getting started with the program The Res dinvx x pdf ?le has detailed instructions for using the software and should be used as the manual RES DINVx and RES DINVx are computer programs that will automatically determine a two-dimensional -D resistivity model for the subsurface for the data obtained from electrical imaging surveys Dahlin Loke et al It is a Windows based program that also supports multi-core CPUs Figure shows an example of the electrodes arrangement and measurement sequence that can be used for a -D electrical imaging survey Many di ?erent multi-electrode systems have been developed over the past years using di ?erent arrangements of the cables and measurement strategies Loke The survey is usually carried out with a system where the electrodes are arranged along a line with a constant spacing between adjacent electrodes However the program can also handle data sets with a non- uniform electrode spacing Figure Sequence of measurements to build up a pseudosection using a computer controlled multi-electrode survey setup C A ?nite-di ?erence or ?nite-element modeling subroutine is used to calculate the apparent resistivity values and a non-linear smoothnessconstrained least-squares optimization technique is used to calculate the resistivity of the model blocks deGroot-Hedlin and Constable Loke et al If topography is present the program uses a distorted ?nite-element grid so that the surface of the grid matches the topography Loke If I P data is also present the program will also generate an I P model together with the resistivity model using the complex resistivity method Kenma et al This program can be used for surveys using the Wenner pole-pole dipole-dipole pole-dipole