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Recent AEM case study examples of a full Waveform time-domain system for near-surface and groundwater applications.

Legault, Jean M.; Prikhodko, Alexander; Eadie, Timothy; Kwan, Karl; Oldenborger, Greg A.; Sapia, Vincenzo; Viezzoli, Andrea V.; Gloaguen, Erwan; Smith, Bruce D. et Best, Melvyn E. (2013). Recent AEM case study examples of a full Waveform time-domain system for near-surface and groundwater applications. In: 2nd International Conference on Engineering Geophysics, 23-27 novembre 2013, Al-Aïn, Émirats arabes unis.

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Résumé

Early time or high frequency airborne electromagnetic data (AEM) are desirable for shallow sounding or mapping of resistive areas but this poses difficulties due to a variety of issues, such as system bandwidth, system calibration and parasitic loop capacitance. In an effort to address this issue, a continued system design strategy, aimed at improving its early-channel VTEM data, has achieved fully calibrated, quantitative measurements closer to the transmitter current turn-off, while maintaining reasonably optimal deep penetration characteristics. The new design implementation, known as "Full Waveform" VTEM was previously described by Legault et al. (2012). This paper presents some case-study examples of a Full Waveform helicopter time-domain EM system for near-surface applications.

Type de document: Document issu d'une conférence ou d'un atelier
Mots-clés libres: geophysics; groundwater; airborne electromagnetic data; AEM
Centre: Centre Eau Terre Environnement
Date de dépôt: 10 mai 2018 15:38
Dernière modification: 10 mai 2018 15:38
URI: https://espace.inrs.ca/id/eprint/3730

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