ZondRes2d software is designed for 2D interpretation of electrical tomography data by resistivity and induced polarization (IP) methods during land, borehole, and offshore surveys.
ZondRes2d solves a wide variety of tasks from mathematical modeling, observation system selection, data quality and sensitivity analysis, to field data processing, inversion, and interpretation.
A user-friendly interface and a wide range of data presentation options make it possible to solve the set geological problem in the most efficient way.Creation of measurement protocols:
The program allows to create measurement protocols for the following arrays of electrodes: 2-electrode (Pole-Pole,A-M), 3-electrode (Pole-Dipole, A-MN), dipole (Dipole-Dipole, AB-MN), Wenner (A-M-N-B), Schlumberger (A-MN-B), and Gradient (A-MN-B). Measurement configuration can be saved in Syscal sequence [*.txt], ABEM sequence [*.xml], MAE sequence [*.sem], AGI sequence [*.cmd], and MAE instrument [*.sem] formats. Besides, the program implements an algorithm for creating a protocol for cross-hole observations, taking into account the verification of unstable values that are sensitive to errors in the electrode geometry.Supported data types:
Preparing data for inversion includes the following set of actions: assessing the quality of field data, removing poor quality measurements, assigning weights to measurements depending on their quality, combining several arrays into one profile line, filtering data, entering and correcting topographic data. Besides, the program can recalculate the data of opposite three-electrode arrays into a four-electrode AMNB or an anomalous symmetrical AMNA array.
The electrical tomography data quality control module allows you to quickly and efficiently identify problematic measurements in automatic and semi-automatic modes.Operations with data in the module:
ZondRes2d has a large set of tools for mathematical modelling and analysis of sensitivity of the direct current and induced polarization fields which allows to evaluate the level of signal and choose the optimal parameters of the observation system in order to solve the geological problem.Mathematical modelling and data inversion:
There are several configurations of the ERT data processing software ZondRes2D .
ZondRes2D Standard – full-featured configuration of the program for processing ERT and IP data in land, borehole, and marine variants. In this configuration, options for joint inversion with data obtained by other methods, full-wave inversion of IP data, and inversion of geoelectrical monitoring data are available.
ZondRes2D Light - configuration intended only for resistivity data processing, all features are available.
Features of ZondRes2D program, that differ depending on the configuration:
|Modes of building a model when solving direct and inverse problems||mesh, block, polygonal, arbitrarily layered model||mesh, block|
|Inversion of IP data, both according to the standard scheme, and in the time or frequency domain with the Cole-Cole parameters recovery||+||-|
|Full-wave inversion of IP parameters||+||-|
|Inversion of geoelectric monitoring data||+||-|
|Joint inversion with magnetotelluric data||+||-|
|Joint inversion with TEM and FS data||+||-|
|Joint inversion with refracted seismic data||+||-|
|Inversion of gravimetric and magnetic measurements data, including joint with ERT data||+||-|
|Advanced polygonal modelling for magnetic, gravity and SP method (EP)||+||-|
ZondRes2D belongs to the Zond programs family. A unified interface and approach to data processing make it easy to familiarize yourself with operation of the entire package – in case you have the skills and experience of working with one of the programs. This approach allows interpreters to instrumentally integrate various geophysical data, which leads to a more stable and reliable geological and geophysical model.Zond software family:
|ZondIP1d||Designed for 1D inversion of VES and VES-IP data.|
|ZondRes3d||Designed for 3D inversion of resistivity and induced polarization data in land, borehole and marine variants.|
|ZondProtocol||Designed for creation of protocols, measurement control and visualization of ERT measurements and data quality assessment.|
|ZondMT1D||Designed for 1D inversion of magnetotelluric (MT), audiomagnetotelluric (AMT) and radiomagnetotelluric (RMT) data.|
|ZondMT2D||Designed for 2D inversion of MT, AMT and RMT data.|
|ZondGM2d||Designed for 2D multiprofile inversion of gravity and magnetic data.|
|ZondGM3d||Designed for 3D inversion of gravity and magnetic data.|
|ZondTEM1d||Designed for 1D inversion of transient electromagnetic (TEM) data for various observation systems with lines and loops.|
|ZondTEM2d||Designed for 2D inversion of EM soundings data in time and frequency domain.|
|ZondSP2d||Desined for 2D inversion of self-potential data.|
|ZondST2d||Designed for 2D inversion of seismic tomography data (first breaks) and refraction seismic.|
|ZondST3d||Designed for 3D inversion of seismic tomography data (first breaks) and refraction seismic.|
|ZCGViewer||Designed for calculation and visualization of apparent resistivity graphs obtained with various electric survey systems.|
The software can be installed on a computer with OS Windows 98 or later. Calculations in a 64-bit version are available for large datasets.