Characterizing the oceanic ambient noise as recorded by the dense seismo-acoustic Kazakh network
International audience Abstract. In this study, the dense seismo-acoustic network of the Institute of Geophysical Research (IGR), National Nuclear Centre of the Republic of Kazakhstan, is used to characterize the global ocean ambient noise. As the monitoring facilities are collocated, this allows fo...
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Online Access: | https://hal.science/hal-03454462 https://hal.science/hal-03454462/document https://hal.science/hal-03454462/file/se-12-503-2021.pdf https://doi.org/10.5194/se-12-503-2021 |
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ftunigrenoble:oai:HAL:hal-03454462v1 2024-04-28T08:31:13+00:00 Characterizing the oceanic ambient noise as recorded by the dense seismo-acoustic Kazakh network Smirnov, Alexandr de Carlo, Marine Le Pichon, Alexis Shapiro, Nikolai Kulichkov, Sergey Institut des Sciences de la Terre (ISTerre) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA) 2021 https://hal.science/hal-03454462 https://hal.science/hal-03454462/document https://hal.science/hal-03454462/file/se-12-503-2021.pdf https://doi.org/10.5194/se-12-503-2021 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/se-12-503-2021 hal-03454462 https://hal.science/hal-03454462 https://hal.science/hal-03454462/document https://hal.science/hal-03454462/file/se-12-503-2021.pdf doi:10.5194/se-12-503-2021 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1869-9510 EISSN: 1869-9529 Solid Earth https://hal.science/hal-03454462 Solid Earth, 2021, 12 (2), pp.503-520. ⟨10.5194/se-12-503-2021⟩ [SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2021 ftunigrenoble https://doi.org/10.5194/se-12-503-2021 2024-04-18T03:11:24Z International audience Abstract. In this study, the dense seismo-acoustic network of the Institute of Geophysical Research (IGR), National Nuclear Centre of the Republic of Kazakhstan, is used to characterize the global ocean ambient noise. As the monitoring facilities are collocated, this allows for a joint seismo-acoustic analysis of oceanic ambient noise. Infrasonic and seismic data are processed using a correlation-based method to characterize the temporal variability of microbarom and microseism signals from 2014 to 2017. The measurements are compared with microbarom and microseism source model output that are distributed by the French Research Institute for Exploitation of the Sea (IFREMER). The microbarom attenuation is calculated using a semi-empirical propagation law in a range-independent atmosphere. The attenuation of microseisms is calculated taking into account seismic attenuation and bathymetry effect. Comparisons between the observed and predicted infrasonic and seismic signals confirm a common source mechanism for both microbaroms and microseisms. Multi-year and intra-seasonal parameter variations are analyzed, revealing the strong influence of long-range atmospheric propagation on microbarom predictions. In winter, dominating sources of microbaroms are located in the North Atlantic and in the North Pacific during sudden stratospheric warming events, while signals observed in summer could originate from sources located in the Southern Hemisphere; however, additional analyses are required to consolidate this hypothesis. These results reveal the strengths and weaknesses of seismic and acoustic methods and lead to the conclusion that a fusion of two techniques brought the investigation to a new level of findings. Summarized findings also provide a perspective for a better description of the source (localization, intensity, spectral distribution) and bonding mechanisms of the ocean–atmosphere–land interfaces. Article in Journal/Newspaper North Atlantic Université Grenoble Alpes: HAL Solid Earth 12 2 503 520 |
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Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
English |
topic |
[SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] Smirnov, Alexandr de Carlo, Marine Le Pichon, Alexis Shapiro, Nikolai Kulichkov, Sergey Characterizing the oceanic ambient noise as recorded by the dense seismo-acoustic Kazakh network |
topic_facet |
[SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] |
description |
International audience Abstract. In this study, the dense seismo-acoustic network of the Institute of Geophysical Research (IGR), National Nuclear Centre of the Republic of Kazakhstan, is used to characterize the global ocean ambient noise. As the monitoring facilities are collocated, this allows for a joint seismo-acoustic analysis of oceanic ambient noise. Infrasonic and seismic data are processed using a correlation-based method to characterize the temporal variability of microbarom and microseism signals from 2014 to 2017. The measurements are compared with microbarom and microseism source model output that are distributed by the French Research Institute for Exploitation of the Sea (IFREMER). The microbarom attenuation is calculated using a semi-empirical propagation law in a range-independent atmosphere. The attenuation of microseisms is calculated taking into account seismic attenuation and bathymetry effect. Comparisons between the observed and predicted infrasonic and seismic signals confirm a common source mechanism for both microbaroms and microseisms. Multi-year and intra-seasonal parameter variations are analyzed, revealing the strong influence of long-range atmospheric propagation on microbarom predictions. In winter, dominating sources of microbaroms are located in the North Atlantic and in the North Pacific during sudden stratospheric warming events, while signals observed in summer could originate from sources located in the Southern Hemisphere; however, additional analyses are required to consolidate this hypothesis. These results reveal the strengths and weaknesses of seismic and acoustic methods and lead to the conclusion that a fusion of two techniques brought the investigation to a new level of findings. Summarized findings also provide a perspective for a better description of the source (localization, intensity, spectral distribution) and bonding mechanisms of the ocean–atmosphere–land interfaces. |
author2 |
Institut des Sciences de la Terre (ISTerre) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA) |
format |
Article in Journal/Newspaper |
author |
Smirnov, Alexandr de Carlo, Marine Le Pichon, Alexis Shapiro, Nikolai Kulichkov, Sergey |
author_facet |
Smirnov, Alexandr de Carlo, Marine Le Pichon, Alexis Shapiro, Nikolai Kulichkov, Sergey |
author_sort |
Smirnov, Alexandr |
title |
Characterizing the oceanic ambient noise as recorded by the dense seismo-acoustic Kazakh network |
title_short |
Characterizing the oceanic ambient noise as recorded by the dense seismo-acoustic Kazakh network |
title_full |
Characterizing the oceanic ambient noise as recorded by the dense seismo-acoustic Kazakh network |
title_fullStr |
Characterizing the oceanic ambient noise as recorded by the dense seismo-acoustic Kazakh network |
title_full_unstemmed |
Characterizing the oceanic ambient noise as recorded by the dense seismo-acoustic Kazakh network |
title_sort |
characterizing the oceanic ambient noise as recorded by the dense seismo-acoustic kazakh network |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03454462 https://hal.science/hal-03454462/document https://hal.science/hal-03454462/file/se-12-503-2021.pdf https://doi.org/10.5194/se-12-503-2021 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 1869-9510 EISSN: 1869-9529 Solid Earth https://hal.science/hal-03454462 Solid Earth, 2021, 12 (2), pp.503-520. ⟨10.5194/se-12-503-2021⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/se-12-503-2021 hal-03454462 https://hal.science/hal-03454462 https://hal.science/hal-03454462/document https://hal.science/hal-03454462/file/se-12-503-2021.pdf doi:10.5194/se-12-503-2021 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/se-12-503-2021 |
container_title |
Solid Earth |
container_volume |
12 |
container_issue |
2 |
container_start_page |
503 |
op_container_end_page |
520 |
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1797588830960746496 |