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Pradip Kumar Maurya

Non-standard responses in time-domain induced polarization measurements

Publikation: KonferencebidragPaperForskningpeer review

Standard

Non-standard responses in time-domain induced polarization measurements. / Fiandaca, G.; Olsson, P.; Maurya, P. K.; Kühl, A.; Bording, T. S.; Dahlin, T.; Auken, E.

2019. Paper præsenteret ved 25th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019, The Hague, Holland.

Publikation: KonferencebidragPaperForskningpeer review

Harvard

Fiandaca, G, Olsson, P, Maurya, PK, Kühl, A, Bording, TS, Dahlin, T & Auken, E 2019, 'Non-standard responses in time-domain induced polarization measurements', Paper fremlagt ved 25th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019, The Hague, Holland, 08/09/2019 - 12/09/2019.

APA

Fiandaca, G., Olsson, P., Maurya, P. K., Kühl, A., Bording, T. S., Dahlin, T., & Auken, E. (2019). Non-standard responses in time-domain induced polarization measurements. Paper præsenteret ved 25th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019, The Hague, Holland.

CBE

Fiandaca G, Olsson P, Maurya PK, Kühl A, Bording TS, Dahlin T, Auken E. 2019. Non-standard responses in time-domain induced polarization measurements. Paper præsenteret ved 25th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019, The Hague, Holland.

MLA

Fiandaca, G. o.a.. Non-standard responses in time-domain induced polarization measurements. 25th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019, 08 sep. 2019, The Hague, Holland, Paper, 2019.

Vancouver

Fiandaca G, Olsson P, Maurya PK, Kühl A, Bording TS, Dahlin T o.a.. Non-standard responses in time-domain induced polarization measurements. 2019. Paper præsenteret ved 25th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019, The Hague, Holland.

Author

Fiandaca, G. ; Olsson, P. ; Maurya, P. K. ; Kühl, A. ; Bording, T. S. ; Dahlin, T. ; Auken, E. / Non-standard responses in time-domain induced polarization measurements. Paper præsenteret ved 25th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019, The Hague, Holland.

Bibtex

@conference{2b19170289e3433d84dfaaf9842bc295,
title = "Non-standard responses in time-domain induced polarization measurements",
abstract = "Today, negative induced polarization (IP) time-domain responses and responses with non-standard shapes are generally considered as measurement errors and removed in data processing before inversion. However, synthetic and field measurements show that these responses are in fact physically possible and that a simple theoretical explanation of the basic mechanism for their origin can be found by means of superposition of contributions from regions with different sensitivities. The basic mechanism for IP responses with non-standard shapes is investigated by considering the subsurface Cole-Cole parameter sensitivities and time varying IP potential for 2D synthetic models. The time-domain forward response and sensitivities are computed from the finite-element solutions of the frequency-domain differential equation, through a time transformation that takes the current waveform into account. This approach allows for quantitative unbiased estimates of the time-domain responses and sensitivities, which are different from the estimates that can be obtained when using multiple DC forward computations, as often done in the inversion of time-domain IP data. With the increased understanding, previously disregarded IP responses, which can contain valuable information of the subsurface, can be kept for the inversion process and thus contribute to the final parameter distribution.",
author = "G. Fiandaca and P. Olsson and Maurya, {P. K.} and A. K{\"u}hl and Bording, {T. S.} and T. Dahlin and E. Auken",
year = "2019",
language = "English",
note = "25th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019 ; Conference date: 08-09-2019 Through 12-09-2019",

}

RIS

TY - CONF

T1 - Non-standard responses in time-domain induced polarization measurements

AU - Fiandaca, G.

AU - Olsson, P.

AU - Maurya, P. K.

AU - Kühl, A.

AU - Bording, T. S.

AU - Dahlin, T.

AU - Auken, E.

PY - 2019

Y1 - 2019

N2 - Today, negative induced polarization (IP) time-domain responses and responses with non-standard shapes are generally considered as measurement errors and removed in data processing before inversion. However, synthetic and field measurements show that these responses are in fact physically possible and that a simple theoretical explanation of the basic mechanism for their origin can be found by means of superposition of contributions from regions with different sensitivities. The basic mechanism for IP responses with non-standard shapes is investigated by considering the subsurface Cole-Cole parameter sensitivities and time varying IP potential for 2D synthetic models. The time-domain forward response and sensitivities are computed from the finite-element solutions of the frequency-domain differential equation, through a time transformation that takes the current waveform into account. This approach allows for quantitative unbiased estimates of the time-domain responses and sensitivities, which are different from the estimates that can be obtained when using multiple DC forward computations, as often done in the inversion of time-domain IP data. With the increased understanding, previously disregarded IP responses, which can contain valuable information of the subsurface, can be kept for the inversion process and thus contribute to the final parameter distribution.

AB - Today, negative induced polarization (IP) time-domain responses and responses with non-standard shapes are generally considered as measurement errors and removed in data processing before inversion. However, synthetic and field measurements show that these responses are in fact physically possible and that a simple theoretical explanation of the basic mechanism for their origin can be found by means of superposition of contributions from regions with different sensitivities. The basic mechanism for IP responses with non-standard shapes is investigated by considering the subsurface Cole-Cole parameter sensitivities and time varying IP potential for 2D synthetic models. The time-domain forward response and sensitivities are computed from the finite-element solutions of the frequency-domain differential equation, through a time transformation that takes the current waveform into account. This approach allows for quantitative unbiased estimates of the time-domain responses and sensitivities, which are different from the estimates that can be obtained when using multiple DC forward computations, as often done in the inversion of time-domain IP data. With the increased understanding, previously disregarded IP responses, which can contain valuable information of the subsurface, can be kept for the inversion process and thus contribute to the final parameter distribution.

UR - http://www.scopus.com/inward/record.url?scp=85088224999&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85088224999

T2 - 25th European Meeting of Environmental and Engineering Geophysics, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019

Y2 - 8 September 2019 through 12 September 2019

ER -