Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway
Distributed acoustic sensing (DAS) leverages an ocean-bottom telecommunication fiber-optic cable into a densely sampled array of strain sensors. We demonstrate DAS applications to passive acoustic monitoring (PAM) through an experiment on a submarine fiber-optic cable in Longyearbyen, Svalbard, Norw...
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Society of Exploration Geophysicists
2023
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Online Access: | https://hdl.handle.net/11250/3054259 https://doi.org/10.1190/geo2022-0435.1 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3054259 2023-05-15T15:11:11+02:00 Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway Taweesintananon, Kittinat Landrø, Martin Potter, John Robert Johansen, Ståle Emil Rørstadbotnen, Robin Andre Bouffaut, Léa Kriesell, Hannah Joy Brenne, Jan Kristoffer Haukanes, Aksel Schjelderup, Olaf Storvik, Frode 2023 application/pdf https://hdl.handle.net/11250/3054259 https://doi.org/10.1190/geo2022-0435.1 eng eng Society of Exploration Geophysicists Norges forskningsråd: 305075 Norges forskningsråd: 294404 Norges forskningsråd: 309960 urn:issn:0016-8033 https://hdl.handle.net/11250/3054259 https://doi.org/10.1190/geo2022-0435.1 cristin:2128819 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY Geophysics Svalbard Polhavet Arctic ocean Fibre optic sensors VDP::Oseanografi: 452 VDP::Oceanography: 452 Peer reviewed Journal article 2023 ftntnutrondheimi https://doi.org/10.1190/geo2022-0435.1 2023-03-01T23:43:54Z Distributed acoustic sensing (DAS) leverages an ocean-bottom telecommunication fiber-optic cable into a densely sampled array of strain sensors. We demonstrate DAS applications to passive acoustic monitoring (PAM) through an experiment on a submarine fiber-optic cable in Longyearbyen, Svalbard, Norway. We show that DAS can measure many types of signals in the frequency range from 0.01 to 20 Hz generated by dynamics in the atmosphere, ocean, and solid earth. These include ocean-bottom loading pressure fluctuation of ocean surface waves generated by storms, winds and airflow turbulence, shear-wave resonances in low-velocity near-surface sediments, acoustic resonances in the water column, and propagating seismic waves. We show that DAS can record high-quality, low-frequency seismo-acoustic waves down to 0.01 Hz, which could be used for subsurface exploration. Using the shear-wave resonances recorded by DAS, we can determine the subsurface structure of near-surface sediments with low velocity. In addition, we can trace ocean swells back to their origins of distant storms as far as 13,000 km away from the cable. Because DAS is capable of seismo-acoustic monitoring with high spatial resolution of ~ 1 m over the cable of ~ 100 km long and with a broadband sensitivity down to 0.01 Hz on the low end, it can deliver great scientific value to ocean observation and geophysics community. Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway acceptedVersion Article in Journal/Newspaper Arctic Arctic Ocean Longyearbyen Polhav* Polhavet Svalbard NTNU Open Archive (Norwegian University of Science and Technology) Arctic Arctic Ocean Svalbard Longyearbyen Norway GEOPHYSICS 1 65 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
topic |
Svalbard Polhavet Arctic ocean Fibre optic sensors VDP::Oseanografi: 452 VDP::Oceanography: 452 |
spellingShingle |
Svalbard Polhavet Arctic ocean Fibre optic sensors VDP::Oseanografi: 452 VDP::Oceanography: 452 Taweesintananon, Kittinat Landrø, Martin Potter, John Robert Johansen, Ståle Emil Rørstadbotnen, Robin Andre Bouffaut, Léa Kriesell, Hannah Joy Brenne, Jan Kristoffer Haukanes, Aksel Schjelderup, Olaf Storvik, Frode Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway |
topic_facet |
Svalbard Polhavet Arctic ocean Fibre optic sensors VDP::Oseanografi: 452 VDP::Oceanography: 452 |
description |
Distributed acoustic sensing (DAS) leverages an ocean-bottom telecommunication fiber-optic cable into a densely sampled array of strain sensors. We demonstrate DAS applications to passive acoustic monitoring (PAM) through an experiment on a submarine fiber-optic cable in Longyearbyen, Svalbard, Norway. We show that DAS can measure many types of signals in the frequency range from 0.01 to 20 Hz generated by dynamics in the atmosphere, ocean, and solid earth. These include ocean-bottom loading pressure fluctuation of ocean surface waves generated by storms, winds and airflow turbulence, shear-wave resonances in low-velocity near-surface sediments, acoustic resonances in the water column, and propagating seismic waves. We show that DAS can record high-quality, low-frequency seismo-acoustic waves down to 0.01 Hz, which could be used for subsurface exploration. Using the shear-wave resonances recorded by DAS, we can determine the subsurface structure of near-surface sediments with low velocity. In addition, we can trace ocean swells back to their origins of distant storms as far as 13,000 km away from the cable. Because DAS is capable of seismo-acoustic monitoring with high spatial resolution of ~ 1 m over the cable of ~ 100 km long and with a broadband sensitivity down to 0.01 Hz on the low end, it can deliver great scientific value to ocean observation and geophysics community. Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Taweesintananon, Kittinat Landrø, Martin Potter, John Robert Johansen, Ståle Emil Rørstadbotnen, Robin Andre Bouffaut, Léa Kriesell, Hannah Joy Brenne, Jan Kristoffer Haukanes, Aksel Schjelderup, Olaf Storvik, Frode |
author_facet |
Taweesintananon, Kittinat Landrø, Martin Potter, John Robert Johansen, Ståle Emil Rørstadbotnen, Robin Andre Bouffaut, Léa Kriesell, Hannah Joy Brenne, Jan Kristoffer Haukanes, Aksel Schjelderup, Olaf Storvik, Frode |
author_sort |
Taweesintananon, Kittinat |
title |
Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway |
title_short |
Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway |
title_full |
Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway |
title_fullStr |
Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway |
title_full_unstemmed |
Distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: A case study from Svalbard, Norway |
title_sort |
distributed acoustic sensing of ocean-bottom seismo-acoustics and distant storms: a case study from svalbard, norway |
publisher |
Society of Exploration Geophysicists |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3054259 https://doi.org/10.1190/geo2022-0435.1 |
geographic |
Arctic Arctic Ocean Svalbard Longyearbyen Norway |
geographic_facet |
Arctic Arctic Ocean Svalbard Longyearbyen Norway |
genre |
Arctic Arctic Ocean Longyearbyen Polhav* Polhavet Svalbard |
genre_facet |
Arctic Arctic Ocean Longyearbyen Polhav* Polhavet Svalbard |
op_source |
Geophysics |
op_relation |
Norges forskningsråd: 305075 Norges forskningsråd: 294404 Norges forskningsråd: 309960 urn:issn:0016-8033 https://hdl.handle.net/11250/3054259 https://doi.org/10.1190/geo2022-0435.1 cristin:2128819 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1190/geo2022-0435.1 |
container_title |
GEOPHYSICS |
container_start_page |
1 |
op_container_end_page |
65 |
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1766342085731942400 |