1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models

Satya Prakash Maurya; Nagendra Pratap Singh; Ashish Kumar Tiwari

doi:doi:10.11648/j.earth.20190805.14

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1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models

Satya Prakash Maurya, Nagendra Pratap Singh, Ashish Kumar Tiwari

Published in Earth Sciences (Volume 8, Issue 5)

Received: 14 September 2019 Accepted: 15 October 2019 Published: 25 October 2019

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Abstract

The present research describes a 1D inversion scheme for interpretation of large loop TEM data acquired using offset loop configuration due to a large loop source, over the layered earth models. The inversion is based on a non-linear least square method that generates a smooth layered earth model by minimizing the residual misfit function in an iterative process. It produces an inverted model from the data using the criteria of minimization of misfit function and/or convergence of residual in two successive iterations. The forward problem is formulated in frequency domain, and then it is transformed into the time domain using Fourier cosine and sine transform. The accuracy and robustness of algorithm is tested by inverting the large loop TEM data acquired using offset loop configurations over the homogeneous, two layer, three layer and four layer earth models, with or without the addition of random noises. Inverted results are in good accordance with the theoretical models and validate that different parameters are recovered with high accuracy. The program works satisfactorily with noisy data and produces inverted results with acceptable accuracy for synthetic data up to 5% random noises.

Published in	Earth Sciences (Volume 8, Issue 5)
DOI	10.11648/j.earth.20190805.14
Page(s)	285-293
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Large Loop TEM Methods, Layer Earth Model, Offset Loop Configuration, Inverse Modeling

References

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Satya Prakash Maurya, Nagendra Pratap Singh, Ashish Kumar Tiwari. (2019). 1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models. Earth Sciences, 8(5), 285-293. https://doi.org/10.11648/j.earth.20190805.14

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ACS Style

Satya Prakash Maurya; Nagendra Pratap Singh; Ashish Kumar Tiwari. 1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models. Earth Sci. 2019, 8(5), 285-293. doi: 10.11648/j.earth.20190805.14

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AMA Style

Satya Prakash Maurya, Nagendra Pratap Singh, Ashish Kumar Tiwari. 1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models. Earth Sci. 2019;8(5):285-293. doi: 10.11648/j.earth.20190805.14

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@article{10.11648/j.earth.20190805.14,
  author = {Satya Prakash Maurya and Nagendra Pratap Singh and Ashish Kumar Tiwari},
  title = {1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models},
  journal = {Earth Sciences},
  volume = {8},
  number = {5},
  pages = {285-293},
  doi = {10.11648/j.earth.20190805.14},
  url = {https://doi.org/10.11648/j.earth.20190805.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20190805.14},
  abstract = {The present research describes a 1D inversion scheme for interpretation of large loop TEM data acquired using offset loop configuration due to a large loop source, over the layered earth models. The inversion is based on a non-linear least square method that generates a smooth layered earth model by minimizing the residual misfit function in an iterative process. It produces an inverted model from the data using the criteria of minimization of misfit function and/or convergence of residual in two successive iterations. The forward problem is formulated in frequency domain, and then it is transformed into the time domain using Fourier cosine and sine transform. The accuracy and robustness of algorithm is tested by inverting the large loop TEM data acquired using offset loop configurations over the homogeneous, two layer, three layer and four layer earth models, with or without the addition of random noises. Inverted results are in good accordance with the theoretical models and validate that different parameters are recovered with high accuracy. The program works satisfactorily with noisy data and produces inverted results with acceptable accuracy for synthetic data up to 5% random noises.},
 year = {2019}
}

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TY  - JOUR
T1  - 1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models
AU  - Satya Prakash Maurya
AU  - Nagendra Pratap Singh
AU  - Ashish Kumar Tiwari
Y1  - 2019/10/25
PY  - 2019
N1  - https://doi.org/10.11648/j.earth.20190805.14
DO  - 10.11648/j.earth.20190805.14
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 285
EP  - 293
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20190805.14
AB  - The present research describes a 1D inversion scheme for interpretation of large loop TEM data acquired using offset loop configuration due to a large loop source, over the layered earth models. The inversion is based on a non-linear least square method that generates a smooth layered earth model by minimizing the residual misfit function in an iterative process. It produces an inverted model from the data using the criteria of minimization of misfit function and/or convergence of residual in two successive iterations. The forward problem is formulated in frequency domain, and then it is transformed into the time domain using Fourier cosine and sine transform. The accuracy and robustness of algorithm is tested by inverting the large loop TEM data acquired using offset loop configurations over the homogeneous, two layer, three layer and four layer earth models, with or without the addition of random noises. Inverted results are in good accordance with the theoretical models and validate that different parameters are recovered with high accuracy. The program works satisfactorily with noisy data and produces inverted results with acceptable accuracy for synthetic data up to 5% random noises.
VL  - 8
IS  - 5
ER  -

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Author Information

Satya Prakash Maurya

Department of Geophysics, Institute of Science, Banaras Hindu University, Varanasi, (U. P), India
Nagendra Pratap Singh

Department of Geophysics, Institute of Science, Banaras Hindu University, Varanasi, (U. P), India
Ashish Kumar Tiwari

Department of Geophysics, Institute of Science, Banaras Hindu University, Varanasi, (U. P), India

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Plain Text BibTeX RIS

APA Style

Satya Prakash Maurya, Nagendra Pratap Singh, Ashish Kumar Tiwari. (2019). 1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models. Earth Sciences, 8(5), 285-293. https://doi.org/10.11648/j.earth.20190805.14

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ACS Style

Satya Prakash Maurya; Nagendra Pratap Singh; Ashish Kumar Tiwari. 1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models. Earth Sci. 2019, 8(5), 285-293. doi: 10.11648/j.earth.20190805.14

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AMA Style

Satya Prakash Maurya, Nagendra Pratap Singh, Ashish Kumar Tiwari. 1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models. Earth Sci. 2019;8(5):285-293. doi: 10.11648/j.earth.20190805.14

Copy | Download

@article{10.11648/j.earth.20190805.14,
  author = {Satya Prakash Maurya and Nagendra Pratap Singh and Ashish Kumar Tiwari},
  title = {1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models},
  journal = {Earth Sciences},
  volume = {8},
  number = {5},
  pages = {285-293},
  doi = {10.11648/j.earth.20190805.14},
  url = {https://doi.org/10.11648/j.earth.20190805.14},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20190805.14},
  abstract = {The present research describes a 1D inversion scheme for interpretation of large loop TEM data acquired using offset loop configuration due to a large loop source, over the layered earth models. The inversion is based on a non-linear least square method that generates a smooth layered earth model by minimizing the residual misfit function in an iterative process. It produces an inverted model from the data using the criteria of minimization of misfit function and/or convergence of residual in two successive iterations. The forward problem is formulated in frequency domain, and then it is transformed into the time domain using Fourier cosine and sine transform. The accuracy and robustness of algorithm is tested by inverting the large loop TEM data acquired using offset loop configurations over the homogeneous, two layer, three layer and four layer earth models, with or without the addition of random noises. Inverted results are in good accordance with the theoretical models and validate that different parameters are recovered with high accuracy. The program works satisfactorily with noisy data and produces inverted results with acceptable accuracy for synthetic data up to 5% random noises.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - 1D Inversion of Large Loop Transient Electromagnetic Data Acquired Using Offset Loop Configuration Over Multi-layer Earth Models
AU  - Satya Prakash Maurya
AU  - Nagendra Pratap Singh
AU  - Ashish Kumar Tiwari
Y1  - 2019/10/25
PY  - 2019
N1  - https://doi.org/10.11648/j.earth.20190805.14
DO  - 10.11648/j.earth.20190805.14
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 285
EP  - 293
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20190805.14
AB  - The present research describes a 1D inversion scheme for interpretation of large loop TEM data acquired using offset loop configuration due to a large loop source, over the layered earth models. The inversion is based on a non-linear least square method that generates a smooth layered earth model by minimizing the residual misfit function in an iterative process. It produces an inverted model from the data using the criteria of minimization of misfit function and/or convergence of residual in two successive iterations. The forward problem is formulated in frequency domain, and then it is transformed into the time domain using Fourier cosine and sine transform. The accuracy and robustness of algorithm is tested by inverting the large loop TEM data acquired using offset loop configurations over the homogeneous, two layer, three layer and four layer earth models, with or without the addition of random noises. Inverted results are in good accordance with the theoretical models and validate that different parameters are recovered with high accuracy. The program works satisfactorily with noisy data and produces inverted results with acceptable accuracy for synthetic data up to 5% random noises.
VL  - 8
IS  - 5
ER  -

Copy | Download