AMT SOUNDINGS IN THE DEAD BAND WITHIN THE CHUKOTKA REGION (RUSSIAN FAR EAST)
The article analyzes the amplitude spectra of audio magnetotelluric sounding (AMTs) data. Particular attention is focused on the frequency range from 1 to 5 kHz, which is called dead band. We analyzed the data of base stations used in the fieldwork during the summer and autumn seasons in 2013, 2014,...
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Saint-Petersburg Mining University
2019
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ftdoajarticles:oai:doaj.org/article:ddd7344714a54689976a06831c1f7a10 2023-05-15T15:05:06+02:00 AMT SOUNDINGS IN THE DEAD BAND WITHIN THE CHUKOTKA REGION (RUSSIAN FAR EAST) E. Yu. Ermolin O. Ingerov A. A. Yankilevich N. N. Pokrovskaya 2019-04-01T00:00:00Z https://doi.org/10.31897/pmi.2019.2.125 https://doaj.org/article/ddd7344714a54689976a06831c1f7a10 EN RU eng rus Saint-Petersburg Mining University https://pmi.spmi.ru/index.php/pmi/article/view/13177?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 doi:10.31897/pmi.2019.2.125 https://doaj.org/article/ddd7344714a54689976a06831c1f7a10 Записки Горного института, Vol 236, Pp 125-125 (2019) Mining engineering. Metallurgy TN1-997 article 2019 ftdoajarticles https://doi.org/10.31897/pmi.2019.2.125 2023-01-22T01:30:22Z The article analyzes the amplitude spectra of audio magnetotelluric sounding (AMTs) data. Particular attention is focused on the frequency range from 1 to 5 kHz, which is called dead band. We analyzed the data of base stations used in the fieldwork during the summer and autumn seasons in 2013, 2014, and 2017. The area of work is located in the Chukotka Autonomous Area beyond the Arctic Circle. Previous researchers noted that a reliable signal in the dead band can only be obtained at nighttime. The authors of the article found that in Chukotka region in the daytime against the minimum signal within the dead band there is a local maximum at a frequency of 2.4 kHz. When registering a field for more than 3 hours during daytime, in most cases, it is possible to restore the frequencies of 2.2 and 2.6 kHz. These frequencies are reliable benchmarks, allowing in some cases to restore the AMT curve using the correlation between amplitude and phase. We have proposed ways to improve data quality in the dead band when measured during the daytime. Article in Journal/Newspaper Arctic Chukotka Directory of Open Access Journals: DOAJ Articles Arctic Journal of Mining Institute 236 2 125 132 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Russian |
topic |
Mining engineering. Metallurgy TN1-997 |
spellingShingle |
Mining engineering. Metallurgy TN1-997 E. Yu. Ermolin O. Ingerov A. A. Yankilevich N. N. Pokrovskaya AMT SOUNDINGS IN THE DEAD BAND WITHIN THE CHUKOTKA REGION (RUSSIAN FAR EAST) |
topic_facet |
Mining engineering. Metallurgy TN1-997 |
description |
The article analyzes the amplitude spectra of audio magnetotelluric sounding (AMTs) data. Particular attention is focused on the frequency range from 1 to 5 kHz, which is called dead band. We analyzed the data of base stations used in the fieldwork during the summer and autumn seasons in 2013, 2014, and 2017. The area of work is located in the Chukotka Autonomous Area beyond the Arctic Circle. Previous researchers noted that a reliable signal in the dead band can only be obtained at nighttime. The authors of the article found that in Chukotka region in the daytime against the minimum signal within the dead band there is a local maximum at a frequency of 2.4 kHz. When registering a field for more than 3 hours during daytime, in most cases, it is possible to restore the frequencies of 2.2 and 2.6 kHz. These frequencies are reliable benchmarks, allowing in some cases to restore the AMT curve using the correlation between amplitude and phase. We have proposed ways to improve data quality in the dead band when measured during the daytime. |
format |
Article in Journal/Newspaper |
author |
E. Yu. Ermolin O. Ingerov A. A. Yankilevich N. N. Pokrovskaya |
author_facet |
E. Yu. Ermolin O. Ingerov A. A. Yankilevich N. N. Pokrovskaya |
author_sort |
E. Yu. Ermolin |
title |
AMT SOUNDINGS IN THE DEAD BAND WITHIN THE CHUKOTKA REGION (RUSSIAN FAR EAST) |
title_short |
AMT SOUNDINGS IN THE DEAD BAND WITHIN THE CHUKOTKA REGION (RUSSIAN FAR EAST) |
title_full |
AMT SOUNDINGS IN THE DEAD BAND WITHIN THE CHUKOTKA REGION (RUSSIAN FAR EAST) |
title_fullStr |
AMT SOUNDINGS IN THE DEAD BAND WITHIN THE CHUKOTKA REGION (RUSSIAN FAR EAST) |
title_full_unstemmed |
AMT SOUNDINGS IN THE DEAD BAND WITHIN THE CHUKOTKA REGION (RUSSIAN FAR EAST) |
title_sort |
amt soundings in the dead band within the chukotka region (russian far east) |
publisher |
Saint-Petersburg Mining University |
publishDate |
2019 |
url |
https://doi.org/10.31897/pmi.2019.2.125 https://doaj.org/article/ddd7344714a54689976a06831c1f7a10 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Chukotka |
genre_facet |
Arctic Chukotka |
op_source |
Записки Горного института, Vol 236, Pp 125-125 (2019) |
op_relation |
https://pmi.spmi.ru/index.php/pmi/article/view/13177?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 doi:10.31897/pmi.2019.2.125 https://doaj.org/article/ddd7344714a54689976a06831c1f7a10 |
op_doi |
https://doi.org/10.31897/pmi.2019.2.125 |
container_title |
Journal of Mining Institute |
container_volume |
236 |
container_issue |
2 |
container_start_page |
125 |
op_container_end_page |
132 |
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1766336856486576128 |