Search results for " induced polarization"

showing 2 items of 2 documents

Time-domain-induced polarization: Full-decay forward modeling and 1D laterally constrained inversion of Cole-Cole parameters

2012

Time-domain-induced polarization has significantly broadenedits field of reference during the last decade, from mineralexploration to environmental geophysics, e.g., for clay and peatidentification and landfill characterization. Though, insufficientmodeling tools have hitherto limited the use of time-domaininducedpolarization for wider purposes. For these reasons, anew forward code and inversion algorithm have been developedusing the full-time decay of the induced polarization response,together with an accurate description of the transmitter waveformand of the receiver transfer function, to reconstruct thedistribution of the Cole-Cole parameters of the earth. The accuratemodeling of the tra…

Physicsbusiness.industryTransmitterPolarization (waves)Transfer functionInduced polarizationSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)Computational physicsmodellinginversionStep responseGeophysicsGeochemistry and PetrologySettore GEO/11 - Geofisica ApplicataWaveformTime domainTime domain induced polarization inversionTelecommunicationsbusinessCole–Cole equationGEOPHYSICS
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Data repeatability and acquisition techniques for Time-Domain Spectral Induced Polarization

2013

The Time Domain Induced Polarization (TDIP) technique is widely used in applied geophysics, particularly for environmental issues, for instance for delineating landfills or detecting leachate percolation. Because the reliability of IP data remains an issue at the field scale, this paper deals with the factors controlling data quality and compares different arrays and acquisition parameters for optimal collection of data in the field. The first part focuses on repeatability experiments carried out in the former Horlokke landfill (Denmark), in order to infer the degree of which a signal can be reproduced over time. Results show a good repeatability, with on average less than 10% of difference…

Spectral induced polarisationgeophysicsMineralogyScale (descriptive set theory)RepeatabilityInduced polarizationSignalGeophysicsData qualityspectral induced polarizationspectralTime domainAlgorithmGeologyReliability (statistics)
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