2D/3D-inversion software RES2DINV/RES3DINV The RES2DINV/RES2DINV programs use the smoothness-constrained Gauss-Newton least-squares method inversion technique to produce a 2D/3D model of the subsurface from the apparent resistivity data alone. AGI EarthImager 3D is a three-dimensional resistivity and induced polarization (IP) inversion modeling software. It converts electrically gathered data and converts it into a 3D rendering presented using an advanced volume display.

Supports on land, underwater and cross-borehole surveys Supports the Wenner (alpha,beta,gamma), Wenner-Schlumberger, pole-pole, pole-dipole, inline dipole-dipole, equatorial dipole-dipole, gradient and non-conventional arrays. Supports exact and approximate least-squares optimisation methods Supports smooth and sharp constrasts inversions Supports up to 16000 electrodes and 21000 data points on computers with 1GB RAM Seamless inversion of very long survey lines using sparse inversion techniques (RES2DINV only license includes limited used of RES3DINV 3D inversion program) RES2DINV software is designed to interpolate and interpret field data of electrical geophysical prospecting (2D sounding) of electrical resistivity (conductivity) and induced polarization. The inversion of the resistivity and IP data is conducted by least-square method involving finite-element and finite-difference methods.

The software can handle data from any electrode array, including Wenner (a, b, g), dipole-dipole, inline pole-dipole, pole-pole, Wenner-Schlumberger, equatorial pole-dipole and non-conventional arrays. Interpolate data from land, under water, and cross-borehole surveys. Easy data conversion from the most popular geophysical instruments including ABEM Lund, Syskal, AGI, PASI, IRIS, SCITREX, etc. It is probably an order of magnitude faster than some other commercially available 2D inversion software.

The program supports survey lines with up to 16000 electrodes and 27000 data points. New in RES2DINV ver. 3.71: Multicore CPU support is now available in RES2DINVx32 and RES3DINVx64. New in RES2DINV ver. 3.59: Sparse inversion option for very long survey lines (2000 to 16000 electrode positions) added. This method inverts the entire data set and model at a single time to produce a continuous and seamless model. New format for batch mode option script file which makesuse of the files containing the inversion parameters produced by the RES2DINV program.

Option to include boundaries of layers from seismic or borehole surveys added. Download legacy version: and Upgrades are free for one year for existing customers. After that, the software will operate indefinetely at the version when your support has ended (and Landviser, LLC will still help our customers with data interpretation for free), but to upgrade to the current version and receive software support from GeoTOMO you will need to pay $290 for each additional year of support. $2,900.00 Special Note for USA customers: Landviser's equipment and software qualify for tax deduction under Section 179.

You still have time to purchase ERM-01, ERM-02 or RES2DINV/RES3DINV in 2012, before this deduction expires! For prices and product accessories, go to Send us or post a comment below and we will happily provide you with a custom quote. Download DEMO: Some customers might find the demo version is essential for all their needs.

The full professional version of the program gives your the ability to save your models and inversion data and is protected with a hardware key (USB or LP1 dongle). Registered clients/web users can visit for complete downloads.

Two-dimensional, smooth-model inversion of resistivity and induced polarization data produces image-like, electrical property sections which improve the data’s interpretability. Recent software improvements enable routine smooth-model inversion of resistivity and induced polarization (IP) data. English grammar worksheets for class 10 icse pdf download.

Nearly uniform starting models are generated by running broad moving-average filters over lines of dipole-dipole or pole-dipole data. Model resistivity and IP properties are then adjusted iteratively until calculated data values match observed values as closely as possible, given constraints which keep the model section smooth. Calculated values are generated with a finite element algorithm which can be adapted for accurate two-dimensional modeling of data collected in rough terrain.

Conclusions Smooth-model inversion of sample data show the method’s utility as an interpretation aid and the. Importance of modeling topography in areas with significant relief. Smooth modeling can be used as an automated imaging tool by generating a priori starting models with a broad moving-average of observed data. It can also be used as tool for interpretive synthesis by basing a priori models on independent geologic information from mapping, drilling or other geophysical surveys.

Topographic effects can distort apparent resistivity data in areas with rough terrain. Using a finite-element, forward-modeling algorithm allows for distorted computational meshes which closely follow irregular topographic profiles and accurately model topographic effects. Smooth-model inversion improves the interpretability of resistivity/IP data and in areas with topographic relief, results are improved further by including topographic modeling in the inversion procedure.