Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach
International audience This study investigates the use of a vespagram-based approach as a tool for multi-directional comparison between simulated microbarom soundscapes and infrasound data recorded at ground-based array stations. Data recorded at the IS37 station in northern Norway during 2014-2019...
Published in: | Annales Geophysicae |
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Online Access: | https://insu.hal.science/insu-03683264 https://insu.hal.science/insu-03683264/document https://insu.hal.science/insu-03683264/file/angeo-39-515-2021.pdf https://doi.org/10.5194/angeo-39-515-2021 |
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ftceafr:oai:HAL:insu-03683264v1 2024-09-15T18:25:51+00:00 Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach Vorobeva, Ekaterina de Carlo, Marine Le Pichon, Alexis Espy, Patrick Joseph Näsholm, Sven Peter Centre d'Études de Limeil-Valenton (CEA-DAM) Direction des Applications Militaires (DAM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) 2021 https://insu.hal.science/insu-03683264 https://insu.hal.science/insu-03683264/document https://insu.hal.science/insu-03683264/file/angeo-39-515-2021.pdf https://doi.org/10.5194/angeo-39-515-2021 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/angeo-39-515-2021 insu-03683264 https://insu.hal.science/insu-03683264 https://insu.hal.science/insu-03683264/document https://insu.hal.science/insu-03683264/file/angeo-39-515-2021.pdf BIBCODE: 2021AnGeo.39.515V doi:10.5194/angeo-39-515-2021 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess Annales Geophysicae https://insu.hal.science/insu-03683264 Annales Geophysicae, 2021, 39, pp.515-531. ⟨10.5194/angeo-39-515-2021⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2021 ftceafr https://doi.org/10.5194/angeo-39-515-2021 2024-07-22T13:11:22Z International audience This study investigates the use of a vespagram-based approach as a tool for multi-directional comparison between simulated microbarom soundscapes and infrasound data recorded at ground-based array stations. Data recorded at the IS37 station in northern Norway during 2014-2019 have been processed to generate vespagrams (velocity spectral analysis) for five frequency bands between 0.1 and 0.6 Hz. The back azimuth resolution between the vespagram and the microbarom model is harmonized by smoothing the modeled soundscapes along the back azimuth axis with a kernel corresponding to the frequency-dependent array resolution. An estimate of similarity between the output of the microbarom radiation and propagation model and infrasound observations is then generated based on the image-processing approach of the mean square difference. The analysis reveals that vespagrams can monitor seasonal variations in the microbarom azimuthal distribution, amplitude, and frequency, as well as changes during sudden stratospheric warming events. The vespagram-based approach is computationally inexpensive, can uncover microbarom source variability, and has the potential for near-real-time stratospheric diagnostics and atmospheric model assessment. Article in Journal/Newspaper Northern Norway HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Annales Geophysicae 39 3 515 531 |
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Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Vorobeva, Ekaterina de Carlo, Marine Le Pichon, Alexis Espy, Patrick Joseph Näsholm, Sven Peter Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience This study investigates the use of a vespagram-based approach as a tool for multi-directional comparison between simulated microbarom soundscapes and infrasound data recorded at ground-based array stations. Data recorded at the IS37 station in northern Norway during 2014-2019 have been processed to generate vespagrams (velocity spectral analysis) for five frequency bands between 0.1 and 0.6 Hz. The back azimuth resolution between the vespagram and the microbarom model is harmonized by smoothing the modeled soundscapes along the back azimuth axis with a kernel corresponding to the frequency-dependent array resolution. An estimate of similarity between the output of the microbarom radiation and propagation model and infrasound observations is then generated based on the image-processing approach of the mean square difference. The analysis reveals that vespagrams can monitor seasonal variations in the microbarom azimuthal distribution, amplitude, and frequency, as well as changes during sudden stratospheric warming events. The vespagram-based approach is computationally inexpensive, can uncover microbarom source variability, and has the potential for near-real-time stratospheric diagnostics and atmospheric model assessment. |
author2 |
Centre d'Études de Limeil-Valenton (CEA-DAM) Direction des Applications Militaires (DAM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Vorobeva, Ekaterina de Carlo, Marine Le Pichon, Alexis Espy, Patrick Joseph Näsholm, Sven Peter |
author_facet |
Vorobeva, Ekaterina de Carlo, Marine Le Pichon, Alexis Espy, Patrick Joseph Näsholm, Sven Peter |
author_sort |
Vorobeva, Ekaterina |
title |
Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach |
title_short |
Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach |
title_full |
Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach |
title_fullStr |
Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach |
title_full_unstemmed |
Benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach |
title_sort |
benchmarking microbarom radiation and propagation model against infrasound recordings: a vespagram-based approach |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://insu.hal.science/insu-03683264 https://insu.hal.science/insu-03683264/document https://insu.hal.science/insu-03683264/file/angeo-39-515-2021.pdf https://doi.org/10.5194/angeo-39-515-2021 |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_source |
Annales Geophysicae https://insu.hal.science/insu-03683264 Annales Geophysicae, 2021, 39, pp.515-531. ⟨10.5194/angeo-39-515-2021⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/angeo-39-515-2021 insu-03683264 https://insu.hal.science/insu-03683264 https://insu.hal.science/insu-03683264/document https://insu.hal.science/insu-03683264/file/angeo-39-515-2021.pdf BIBCODE: 2021AnGeo.39.515V doi:10.5194/angeo-39-515-2021 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/angeo-39-515-2021 |
container_title |
Annales Geophysicae |
container_volume |
39 |
container_issue |
3 |
container_start_page |
515 |
op_container_end_page |
531 |
_version_ |
1810466321385652224 |