Spectral induced polarization: frequency domain versus time domain laboratory data
(2021) In Geophysical Journal International 225. p.1982-2000- Abstract
- Spectral information obtained from induced polarization (IP) measurements can be used in a variety of applications and is often gathered in frequency domain (FD) at the laboratory scale. In contrast, field IP measurements are mostly done in time domain (TD). Theoretically, the spectral content from both domains should be similar. In practice, they are often different, mainly due to instrumental restrictions as well as the limited time and frequency range of
measurements. Therefore, a possibility of transition between both domains, in particular for the comparison of laboratory FD IP data and field TD IP results, would be very favourable. To compare both domains, we conducted laboratory IP experiments in both TD and FD.
We started... (More) - Spectral information obtained from induced polarization (IP) measurements can be used in a variety of applications and is often gathered in frequency domain (FD) at the laboratory scale. In contrast, field IP measurements are mostly done in time domain (TD). Theoretically, the spectral content from both domains should be similar. In practice, they are often different, mainly due to instrumental restrictions as well as the limited time and frequency range of
measurements. Therefore, a possibility of transition between both domains, in particular for the comparison of laboratory FD IP data and field TD IP results, would be very favourable. To compare both domains, we conducted laboratory IP experiments in both TD and FD.
We started with three numerical models and measurements at a test circuit, followed by several investigations for different wood and sandstone samples. Our results demonstrate that the differential polarizability (DP), which is calculated from the TD decay curves, can be compared very well with the phase of the complex electrical resistivity. Thus, DP can be used for a first visual comparison of FD and TD data, which also enables a fast discrimination
between different samples. Furthermore, to compare both domains qualitatively, we calculated the relaxation time distribution (RTD) for all data. The results are mostly in agreement between both domains, however, depending on the TD data quality. It is striking that the DP and RTD results are in better agreement for higher data quality in TD. Nevertheless, we demonstrate that IP laboratory measurements can be carried out in both TD and FD with almost equivalent
results. The RTD enables a good comparability of FD IP laboratory data with TD IP field data. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/d089049c-167e-4ca0-8d88-1ce51bd5b7c9
- author
- Martin, Tina LU ; Titov, Konstantin ; Tarasov, Andrey and Weller, Andreas
- organization
- publishing date
- 2021-02-19
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Geophysical Journal International
- volume
- 225
- pages
- 19 pages
- publisher
- Oxford University Press
- external identifiers
-
- scopus:85114997656
- ISSN
- 0956-540X
- DOI
- 10.1093/gji/ggab071
- project
- Linking Time Domain Induced Polarization (TDIP) and Spectral IP (SIP) to characterise the subsurface for groundwater management and protection purposes
- language
- English
- LU publication?
- yes
- id
- d089049c-167e-4ca0-8d88-1ce51bd5b7c9
- date added to LUP
- 2021-04-08 13:27:16
- date last changed
- 2022-04-27 01:20:20
@article{d089049c-167e-4ca0-8d88-1ce51bd5b7c9,
abstract = {{Spectral information obtained from induced polarization (IP) measurements can be used in a variety of applications and is often gathered in frequency domain (FD) at the laboratory scale. In contrast, field IP measurements are mostly done in time domain (TD). Theoretically, the spectral content from both domains should be similar. In practice, they are often different, mainly due to instrumental restrictions as well as the limited time and frequency range of<br/>measurements. Therefore, a possibility of transition between both domains, in particular for the comparison of laboratory FD IP data and field TD IP results, would be very favourable. To compare both domains, we conducted laboratory IP experiments in both TD and FD.<br/>We started with three numerical models and measurements at a test circuit, followed by several investigations for different wood and sandstone samples. Our results demonstrate that the differential polarizability (DP), which is calculated from the TD decay curves, can be compared very well with the phase of the complex electrical resistivity. Thus, DP can be used for a first visual comparison of FD and TD data, which also enables a fast discrimination<br/>between different samples. Furthermore, to compare both domains qualitatively, we calculated the relaxation time distribution (RTD) for all data. The results are mostly in agreement between both domains, however, depending on the TD data quality. It is striking that the DP and RTD results are in better agreement for higher data quality in TD. Nevertheless, we demonstrate that IP laboratory measurements can be carried out in both TD and FD with almost equivalent<br/>results. The RTD enables a good comparability of FD IP laboratory data with TD IP field data.}},
author = {{Martin, Tina and Titov, Konstantin and Tarasov, Andrey and Weller, Andreas}},
issn = {{0956-540X}},
language = {{eng}},
month = {{02}},
pages = {{1982--2000}},
publisher = {{Oxford University Press}},
series = {{Geophysical Journal International}},
title = {{Spectral induced polarization: frequency domain versus time domain laboratory data}},
url = {{https://lup.lub.lu.se/search/files/96427224/Martin_etal2021_LabIP_ggab071.pdf}},
doi = {{10.1093/gji/ggab071}},
volume = {{225}},
year = {{2021}},
}