Ocean-Bottom Seismographs Based on Broadband MET Sensors: Architecture and Deployment Case Study in the Arctic
The Arctic seas are now of particular interest due to their prospects in terms of hydrocarbon extraction, development of marine transport routes, etc. Thus, various geohazards, including those related to seismicity, require detailed studies, especially by instrumental methods. This paper is devoted...
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ftmdpi:oai:mdpi.com:/1424-8220/21/12/3979/ 2023-08-20T04:03:46+02:00 Ocean-Bottom Seismographs Based on Broadband MET Sensors: Architecture and Deployment Case Study in the Arctic Artem A. Krylov Ivan V. Egorov Sergey A. Kovachev Dmitry A. Ilinskiy Oleg Yu. Ganzha Georgy K. Timashkevich Konstantin A. Roginskiy Mikhail E. Kulikov Mikhail A. Novikov Vladimir N. Ivanov Elena A. Radiuk Daria D. Rukavishnikova Alexander V. Neeshpapa Grigory O. Velichko Leopold I. Lobkovsky Igor P. Medvedev Igor P. Semiletov 2021-06-09 application/pdf https://doi.org/10.3390/s21123979 EN eng Multidisciplinary Digital Publishing Institute Physical Sensors https://dx.doi.org/10.3390/s21123979 https://creativecommons.org/licenses/by/4.0/ Sensors; Volume 21; Issue 12; Pages: 3979 ocean-bottom seismograph molecular–electronic transfer seismometer seismic hazard assessment teleseismic signal local microearthquake ambient seismic noise site response analysis Laptev Sea Arctic region Text 2021 ftmdpi https://doi.org/10.3390/s21123979 2023-08-01T01:54:55Z The Arctic seas are now of particular interest due to their prospects in terms of hydrocarbon extraction, development of marine transport routes, etc. Thus, various geohazards, including those related to seismicity, require detailed studies, especially by instrumental methods. This paper is devoted to the ocean-bottom seismographs (OBS) based on broadband molecular–electronic transfer (MET) sensors and a deployment case study in the Laptev Sea. The purpose of the study is to introduce the architecture of several modifications of OBS and to demonstrate their applicability in solving different tasks in the framework of seismic hazard assessment for the Arctic seas. To do this, we used the first results of several pilot deployments of the OBS developed by Shirshov Institute of Oceanology of the Russian Academy of Sciences (IO RAS) and IP Ilyinskiy A.D. in the Laptev Sea that took place in 2018–2020. We highlighted various seismological applications of OBS based on broadband MET sensors CME-4311 (60 s) and CME-4111 (120 s), including the analysis of ambient seismic noise, registering the signals of large remote earthquakes and weak local microearthquakes, and the instrumental approach of the site response assessment. The main characteristics of the broadband MET sensors and OBS architectures turned out to be suitable for obtaining high-quality OBS records under the Arctic conditions to solve seismological problems. In addition, the obtained case study results showed the prospects in a broader context, such as the possible influence of the seismotectonic factor on the bottom-up thawing of subsea permafrost and massive methane release, probably from decaying hydrates and deep geological sources. The described OBS will be actively used in further Arctic expeditions. Text Arctic laptev Laptev Sea permafrost MDPI Open Access Publishing Arctic Laptev Sea Sensors 21 12 3979 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
ocean-bottom seismograph molecular–electronic transfer seismometer seismic hazard assessment teleseismic signal local microearthquake ambient seismic noise site response analysis Laptev Sea Arctic region |
spellingShingle |
ocean-bottom seismograph molecular–electronic transfer seismometer seismic hazard assessment teleseismic signal local microearthquake ambient seismic noise site response analysis Laptev Sea Arctic region Artem A. Krylov Ivan V. Egorov Sergey A. Kovachev Dmitry A. Ilinskiy Oleg Yu. Ganzha Georgy K. Timashkevich Konstantin A. Roginskiy Mikhail E. Kulikov Mikhail A. Novikov Vladimir N. Ivanov Elena A. Radiuk Daria D. Rukavishnikova Alexander V. Neeshpapa Grigory O. Velichko Leopold I. Lobkovsky Igor P. Medvedev Igor P. Semiletov Ocean-Bottom Seismographs Based on Broadband MET Sensors: Architecture and Deployment Case Study in the Arctic |
topic_facet |
ocean-bottom seismograph molecular–electronic transfer seismometer seismic hazard assessment teleseismic signal local microearthquake ambient seismic noise site response analysis Laptev Sea Arctic region |
description |
The Arctic seas are now of particular interest due to their prospects in terms of hydrocarbon extraction, development of marine transport routes, etc. Thus, various geohazards, including those related to seismicity, require detailed studies, especially by instrumental methods. This paper is devoted to the ocean-bottom seismographs (OBS) based on broadband molecular–electronic transfer (MET) sensors and a deployment case study in the Laptev Sea. The purpose of the study is to introduce the architecture of several modifications of OBS and to demonstrate their applicability in solving different tasks in the framework of seismic hazard assessment for the Arctic seas. To do this, we used the first results of several pilot deployments of the OBS developed by Shirshov Institute of Oceanology of the Russian Academy of Sciences (IO RAS) and IP Ilyinskiy A.D. in the Laptev Sea that took place in 2018–2020. We highlighted various seismological applications of OBS based on broadband MET sensors CME-4311 (60 s) and CME-4111 (120 s), including the analysis of ambient seismic noise, registering the signals of large remote earthquakes and weak local microearthquakes, and the instrumental approach of the site response assessment. The main characteristics of the broadband MET sensors and OBS architectures turned out to be suitable for obtaining high-quality OBS records under the Arctic conditions to solve seismological problems. In addition, the obtained case study results showed the prospects in a broader context, such as the possible influence of the seismotectonic factor on the bottom-up thawing of subsea permafrost and massive methane release, probably from decaying hydrates and deep geological sources. The described OBS will be actively used in further Arctic expeditions. |
format |
Text |
author |
Artem A. Krylov Ivan V. Egorov Sergey A. Kovachev Dmitry A. Ilinskiy Oleg Yu. Ganzha Georgy K. Timashkevich Konstantin A. Roginskiy Mikhail E. Kulikov Mikhail A. Novikov Vladimir N. Ivanov Elena A. Radiuk Daria D. Rukavishnikova Alexander V. Neeshpapa Grigory O. Velichko Leopold I. Lobkovsky Igor P. Medvedev Igor P. Semiletov |
author_facet |
Artem A. Krylov Ivan V. Egorov Sergey A. Kovachev Dmitry A. Ilinskiy Oleg Yu. Ganzha Georgy K. Timashkevich Konstantin A. Roginskiy Mikhail E. Kulikov Mikhail A. Novikov Vladimir N. Ivanov Elena A. Radiuk Daria D. Rukavishnikova Alexander V. Neeshpapa Grigory O. Velichko Leopold I. Lobkovsky Igor P. Medvedev Igor P. Semiletov |
author_sort |
Artem A. Krylov |
title |
Ocean-Bottom Seismographs Based on Broadband MET Sensors: Architecture and Deployment Case Study in the Arctic |
title_short |
Ocean-Bottom Seismographs Based on Broadband MET Sensors: Architecture and Deployment Case Study in the Arctic |
title_full |
Ocean-Bottom Seismographs Based on Broadband MET Sensors: Architecture and Deployment Case Study in the Arctic |
title_fullStr |
Ocean-Bottom Seismographs Based on Broadband MET Sensors: Architecture and Deployment Case Study in the Arctic |
title_full_unstemmed |
Ocean-Bottom Seismographs Based on Broadband MET Sensors: Architecture and Deployment Case Study in the Arctic |
title_sort |
ocean-bottom seismographs based on broadband met sensors: architecture and deployment case study in the arctic |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/s21123979 |
geographic |
Arctic Laptev Sea |
geographic_facet |
Arctic Laptev Sea |
genre |
Arctic laptev Laptev Sea permafrost |
genre_facet |
Arctic laptev Laptev Sea permafrost |
op_source |
Sensors; Volume 21; Issue 12; Pages: 3979 |
op_relation |
Physical Sensors https://dx.doi.org/10.3390/s21123979 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/s21123979 |
container_title |
Sensors |
container_volume |
21 |
container_issue |
12 |
container_start_page |
3979 |
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1774714209200766976 |