Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway
This paper will focus on acoustic measurements from the Vesterålen cabled ocean observatory, located 15 km offshore northern Norway, at a depth of 255 m. The measurements were made with a calibrated Ocean Sonic hydrophone SB35-ETH, recording since 2013. The hydrophone node is located in a large (ca....
Published in: | Proceedings of Meetings on Acoustics, International Conference on Underwater Acoustics |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://researchportal.bath.ac.uk/en/publications/f417e3d3-6361-4d98-853e-ad0e685c78fc https://doi.org/10.1121/2.0001324 https://purehost.bath.ac.uk/ws/files/214857804/Garibbo_etal_POMA2020_040001_1.pdf http://www.scopus.com/inward/record.url?scp=85100335611&partnerID=8YFLogxK |
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ftunivbathcris:oai:purehost.bath.ac.uk:publications/f417e3d3-6361-4d98-853e-ad0e685c78fc 2024-09-15T18:06:10+00:00 Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway Garibbo, Shaula Blondel, Philippe Heald, Gary Heyburn, Ross Hunter, Alan J. Williams, Duncan 2020-11-30 application/pdf https://researchportal.bath.ac.uk/en/publications/f417e3d3-6361-4d98-853e-ad0e685c78fc https://doi.org/10.1121/2.0001324 https://purehost.bath.ac.uk/ws/files/214857804/Garibbo_etal_POMA2020_040001_1.pdf http://www.scopus.com/inward/record.url?scp=85100335611&partnerID=8YFLogxK eng eng https://researchportal.bath.ac.uk/en/publications/f417e3d3-6361-4d98-853e-ad0e685c78fc info:eu-repo/semantics/openAccess Garibbo , S , Blondel , P , Heald , G , Heyburn , R , Hunter , A J & Williams , D 2020 , ' Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway ' , Proceedings of Meetings on Acoustics , vol. 40 , 040001 , pp. 1-12 . https://doi.org/10.1121/2.0001324 underwater acoustics ambient noise ocean processes shipping noise earthquakes fin whales /dk/atira/pure/subjectarea/asjc/3100/3102 name=Acoustics and Ultrasonics /dk/atira/pure/subjectarea/asjc/2200/2212 name=Ocean Engineering /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2020 ftunivbathcris https://doi.org/10.1121/2.0001324 2024-08-14T23:41:51Z This paper will focus on acoustic measurements from the Vesterålen cabled ocean observatory, located 15 km offshore northern Norway, at a depth of 255 m. The measurements were made with a calibrated Ocean Sonic hydrophone SB35-ETH, recording since 2013. The hydrophone node is located in a large (ca. 15 km) canyon, not far from shipping lanes. We have measured acoustic variability up to the third-octave band centered on 125 Hz, the second shipping band identified in the European Marine Strategic Framework Directive (MSFD). Time scales from months (spanning several seasons across 2018) to hours have been investigated, considering broadband Source Pressure Levels (SPL, between 1-125 Hz), SPLs over 1-Hz frequency bands (to identify variability within third-octave bands and associate them with potential sources), and percentile contributions over the different frequency bands. Sounds from shipping and fin whale vocalisations are important contributors. Early analyses show it is also possible to detect sounds from far-away earthquakes apparently propagating in the water column (e.g. an m_b = 4.9 event in the Jan Mayen Fracture Zone, 830 km away), and other noise sources over ranges of up to 2212 km. Article in Journal/Newspaper Fin whale Jan Mayen Lofoten Northern Norway Vesterålen University of Bath's research portal Proceedings of Meetings on Acoustics, International Conference on Underwater Acoustics 40 040001 |
institution |
Open Polar |
collection |
University of Bath's research portal |
op_collection_id |
ftunivbathcris |
language |
English |
topic |
underwater acoustics ambient noise ocean processes shipping noise earthquakes fin whales /dk/atira/pure/subjectarea/asjc/3100/3102 name=Acoustics and Ultrasonics /dk/atira/pure/subjectarea/asjc/2200/2212 name=Ocean Engineering /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
underwater acoustics ambient noise ocean processes shipping noise earthquakes fin whales /dk/atira/pure/subjectarea/asjc/3100/3102 name=Acoustics and Ultrasonics /dk/atira/pure/subjectarea/asjc/2200/2212 name=Ocean Engineering /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Garibbo, Shaula Blondel, Philippe Heald, Gary Heyburn, Ross Hunter, Alan J. Williams, Duncan Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway |
topic_facet |
underwater acoustics ambient noise ocean processes shipping noise earthquakes fin whales /dk/atira/pure/subjectarea/asjc/3100/3102 name=Acoustics and Ultrasonics /dk/atira/pure/subjectarea/asjc/2200/2212 name=Ocean Engineering /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
This paper will focus on acoustic measurements from the Vesterålen cabled ocean observatory, located 15 km offshore northern Norway, at a depth of 255 m. The measurements were made with a calibrated Ocean Sonic hydrophone SB35-ETH, recording since 2013. The hydrophone node is located in a large (ca. 15 km) canyon, not far from shipping lanes. We have measured acoustic variability up to the third-octave band centered on 125 Hz, the second shipping band identified in the European Marine Strategic Framework Directive (MSFD). Time scales from months (spanning several seasons across 2018) to hours have been investigated, considering broadband Source Pressure Levels (SPL, between 1-125 Hz), SPLs over 1-Hz frequency bands (to identify variability within third-octave bands and associate them with potential sources), and percentile contributions over the different frequency bands. Sounds from shipping and fin whale vocalisations are important contributors. Early analyses show it is also possible to detect sounds from far-away earthquakes apparently propagating in the water column (e.g. an m_b = 4.9 event in the Jan Mayen Fracture Zone, 830 km away), and other noise sources over ranges of up to 2212 km. |
format |
Article in Journal/Newspaper |
author |
Garibbo, Shaula Blondel, Philippe Heald, Gary Heyburn, Ross Hunter, Alan J. Williams, Duncan |
author_facet |
Garibbo, Shaula Blondel, Philippe Heald, Gary Heyburn, Ross Hunter, Alan J. Williams, Duncan |
author_sort |
Garibbo, Shaula |
title |
Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway |
title_short |
Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway |
title_full |
Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway |
title_fullStr |
Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway |
title_full_unstemmed |
Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway |
title_sort |
low-frequency ocean acoustics – measurements from the lofoten-vesterålen ocean observatory, norway |
publishDate |
2020 |
url |
https://researchportal.bath.ac.uk/en/publications/f417e3d3-6361-4d98-853e-ad0e685c78fc https://doi.org/10.1121/2.0001324 https://purehost.bath.ac.uk/ws/files/214857804/Garibbo_etal_POMA2020_040001_1.pdf http://www.scopus.com/inward/record.url?scp=85100335611&partnerID=8YFLogxK |
genre |
Fin whale Jan Mayen Lofoten Northern Norway Vesterålen |
genre_facet |
Fin whale Jan Mayen Lofoten Northern Norway Vesterålen |
op_source |
Garibbo , S , Blondel , P , Heald , G , Heyburn , R , Hunter , A J & Williams , D 2020 , ' Low-frequency ocean acoustics – Measurements from the Lofoten-VesterÅlen ocean observatory, Norway ' , Proceedings of Meetings on Acoustics , vol. 40 , 040001 , pp. 1-12 . https://doi.org/10.1121/2.0001324 |
op_relation |
https://researchportal.bath.ac.uk/en/publications/f417e3d3-6361-4d98-853e-ad0e685c78fc |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1121/2.0001324 |
container_title |
Proceedings of Meetings on Acoustics, International Conference on Underwater Acoustics |
container_volume |
40 |
container_start_page |
040001 |
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1810443667405537280 |