DCIP2D:
Elements of the DCIP2D (Version 3.1) Program Library

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Introduction

The DCIP2D library consists of three major programs:

1. DCIPF2D: performs forward modelling for DC and IP data
2. DCINV2D: inverts DC potentials to recover a conductivity model
3. IPINV2D: inverts IP data to recover a chargeability model

Each of the above programs requires input files as well as the specification of parameters in order to run. However, some files are used by a number of programs. Before detailing the run procedures for each of the above programs we first present information about these general files.

General Files for DCIP2D Programs

There are 7 general files which are used in DCIP2D. These are:

1. obs.dat: contains the observations
2. potgrid.dat: contains the electrode locations for the survey
3. fdmesh.dat: contains the finite difference mesh for the 2D modelling and inversions
4. topo.dat: contains the topographic data
5. model.con: contains the cell values for the conductivity model
6. model.chg: contains the cell values for the chargeability model
7. w.dat: contains special weightings which alter the type of model produced in the inversions.