Two-element acoustic array gives insight into ice-ocean interactions in Hornsund Fjord, Spitsbergen
Glacierized fjords are dynamic regions, with variable oceanographic conditions and complex ice-ocean interactions, which are still poorly understood. Recent studies have shown that passive underwater acoustics offers new promising tools in this branch of polar research. Here, we present results from...
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Polish Academy of Sciences
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ftdoajarticles:oai:doaj.org/article:4bf1e5177c69438d8069e69ea9a3585b 2023-05-15T16:34:55+02:00 Two-element acoustic array gives insight into ice-ocean interactions in Hornsund Fjord, Spitsbergen Głowacki Oskar Deane Grant B. Moskalik Mateusz Tęgowski Jarosław Blondel Philippe 2015-12-01T00:00:00Z https://doi.org/10.1515/popore-2015-0025 https://doaj.org/article/4bf1e5177c69438d8069e69ea9a3585b EN eng Polish Academy of Sciences http://www.degruyter.com/view/j/popore.2015.36.issue-4/popore-2015-0025/popore-2015-0025.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2015-0025 https://doaj.org/article/4bf1e5177c69438d8069e69ea9a3585b Polish Polar Research, Vol 36, Iss 4, Pp 355-367 (2015) Tidewater glaciers ice melting passive acoustics Spitsbergen Hornsund Geology QE1-996.5 article 2015 ftdoajarticles https://doi.org/10.1515/popore-2015-0025 2022-12-31T03:46:46Z Glacierized fjords are dynamic regions, with variable oceanographic conditions and complex ice-ocean interactions, which are still poorly understood. Recent studies have shown that passive underwater acoustics offers new promising tools in this branch of polar research. Here, we present results from two field campaigns, conducted in summer 2013 and spring 2014. Several recordings with a bespoke two-hydrophone acoustic buoy were made in different parts of Hornsund Fjord, Spitsbergen in the vicinity of tidewater glaciers to study the directionality of underwater ambient noise. Representative segments of the data are used to illustrate the analyses, and determine the directions of sound sources by using the time differences of arrivals between two horizontally aligned, broadband hydrophones. The results reveal that low frequency noise (< 3 kHz) is radiated mostly from the ice cliffs, while high-frequency (> 3 kHz) noise directionality strongly depends on the distribution of floating glacial ice throughout the fjord. Changing rates of iceberg production as seen for example in field photographs and logs are, in turn, most likely linked to signal amplitudes for relevant directions. These findings demonstrate the potential offered by passive acoustics to study the dynamics of individual tidewater glaciers. Article in Journal/Newspaper Hornsund Polar Research Spitsbergen Directory of Open Access Journals: DOAJ Articles Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Polish Polar Research 36 4 355 367 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Tidewater glaciers ice melting passive acoustics Spitsbergen Hornsund Geology QE1-996.5 |
spellingShingle |
Tidewater glaciers ice melting passive acoustics Spitsbergen Hornsund Geology QE1-996.5 Głowacki Oskar Deane Grant B. Moskalik Mateusz Tęgowski Jarosław Blondel Philippe Two-element acoustic array gives insight into ice-ocean interactions in Hornsund Fjord, Spitsbergen |
topic_facet |
Tidewater glaciers ice melting passive acoustics Spitsbergen Hornsund Geology QE1-996.5 |
description |
Glacierized fjords are dynamic regions, with variable oceanographic conditions and complex ice-ocean interactions, which are still poorly understood. Recent studies have shown that passive underwater acoustics offers new promising tools in this branch of polar research. Here, we present results from two field campaigns, conducted in summer 2013 and spring 2014. Several recordings with a bespoke two-hydrophone acoustic buoy were made in different parts of Hornsund Fjord, Spitsbergen in the vicinity of tidewater glaciers to study the directionality of underwater ambient noise. Representative segments of the data are used to illustrate the analyses, and determine the directions of sound sources by using the time differences of arrivals between two horizontally aligned, broadband hydrophones. The results reveal that low frequency noise (< 3 kHz) is radiated mostly from the ice cliffs, while high-frequency (> 3 kHz) noise directionality strongly depends on the distribution of floating glacial ice throughout the fjord. Changing rates of iceberg production as seen for example in field photographs and logs are, in turn, most likely linked to signal amplitudes for relevant directions. These findings demonstrate the potential offered by passive acoustics to study the dynamics of individual tidewater glaciers. |
format |
Article in Journal/Newspaper |
author |
Głowacki Oskar Deane Grant B. Moskalik Mateusz Tęgowski Jarosław Blondel Philippe |
author_facet |
Głowacki Oskar Deane Grant B. Moskalik Mateusz Tęgowski Jarosław Blondel Philippe |
author_sort |
Głowacki Oskar |
title |
Two-element acoustic array gives insight into ice-ocean interactions in Hornsund Fjord, Spitsbergen |
title_short |
Two-element acoustic array gives insight into ice-ocean interactions in Hornsund Fjord, Spitsbergen |
title_full |
Two-element acoustic array gives insight into ice-ocean interactions in Hornsund Fjord, Spitsbergen |
title_fullStr |
Two-element acoustic array gives insight into ice-ocean interactions in Hornsund Fjord, Spitsbergen |
title_full_unstemmed |
Two-element acoustic array gives insight into ice-ocean interactions in Hornsund Fjord, Spitsbergen |
title_sort |
two-element acoustic array gives insight into ice-ocean interactions in hornsund fjord, spitsbergen |
publisher |
Polish Academy of Sciences |
publishDate |
2015 |
url |
https://doi.org/10.1515/popore-2015-0025 https://doaj.org/article/4bf1e5177c69438d8069e69ea9a3585b |
long_lat |
ENVELOPE(15.865,15.865,76.979,76.979) |
geographic |
Hornsund |
geographic_facet |
Hornsund |
genre |
Hornsund Polar Research Spitsbergen |
genre_facet |
Hornsund Polar Research Spitsbergen |
op_source |
Polish Polar Research, Vol 36, Iss 4, Pp 355-367 (2015) |
op_relation |
http://www.degruyter.com/view/j/popore.2015.36.issue-4/popore-2015-0025/popore-2015-0025.xml?format=INT https://doaj.org/toc/2081-8262 2081-8262 doi:10.1515/popore-2015-0025 https://doaj.org/article/4bf1e5177c69438d8069e69ea9a3585b |
op_doi |
https://doi.org/10.1515/popore-2015-0025 |
container_title |
Polish Polar Research |
container_volume |
36 |
container_issue |
4 |
container_start_page |
355 |
op_container_end_page |
367 |
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1766025035070308352 |