Estimating tropospheric and stratospheric winds using infrasound from explosions
The receiver-to-source backazimuth of atmospheric infrasound signals is biased when cross-winds are present along the propagation path. Infrasound from 598 surface explosions from over 30 years in northern Finland is measured with high spatial resolution on an array 178 km almost due North. The arra...
Published in: | The Journal of the Acoustical Society of America |
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Online Access: | http://resolver.tudelft.nl/uuid:ef6280d1-5c87-44f0-8e87-8ed1850e42af https://doi.org/10.1121/1.5120183 |
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fttudelft:oai:tudelft.nl:uuid:ef6280d1-5c87-44f0-8e87-8ed1850e42af 2024-04-28T08:32:24+00:00 Estimating tropospheric and stratospheric winds using infrasound from explosions Blixt, Erik Mårten (author) Näsholm, Sven Peter (author) Gibbons, Steven J. (author) Evers, L.G. (author) Charlton-Perez, Andrew J. (author) Orsolini, Yvan J. (author) Kværna, Tormod (author) 2019 http://resolver.tudelft.nl/uuid:ef6280d1-5c87-44f0-8e87-8ed1850e42af https://doi.org/10.1121/1.5120183 en eng http://www.scopus.com/inward/record.url?scp=85070561075&partnerID=8YFLogxK The Journal of the Acoustical Society of America--0001-4966--6d1de847-a798-4090-b117-c05838130a6b http://resolver.tudelft.nl/uuid:ef6280d1-5c87-44f0-8e87-8ed1850e42af https://doi.org/10.1121/1.5120183 © 2019 Erik Mårten Blixt, Sven Peter Näsholm, Steven J. Gibbons, L.G. Evers, Andrew J. Charlton-Perez, Yvan J. Orsolini, Tormod Kværna journal article 2019 fttudelft https://doi.org/10.1121/1.5120183 2024-04-09T23:55:06Z The receiver-to-source backazimuth of atmospheric infrasound signals is biased when cross-winds are present along the propagation path. Infrasound from 598 surface explosions from over 30 years in northern Finland is measured with high spatial resolution on an array 178 km almost due North. The array is situated in the classical shadow-zone distance from the explosions. However, strong infrasound is almost always observed, which is most plausibly due to partial reflections from stratospheric altitudes. The most probable propagation paths are subject to both tropospheric and stratospheric cross-winds, and the wave-propagation modelling in this study yields good correspondence between the observed backazimuth deviation and cross-winds from the European Centre for Medium-Range Weather Forecasts Reanalysis (ERA)-Interim reanalysis product. This study demonstrates that atmospheric cross-winds can be estimated directly from infrasound data using propagation time and backazimuth deviation observations. This study finds these cross-wind estimates to be in good agreement with the ERA-Interim reanalysis. Applied Geophysics and Petrophysics Article in Journal/Newspaper Northern Finland Delft University of Technology: Institutional Repository The Journal of the Acoustical Society of America 146 2 973 982 |
institution |
Open Polar |
collection |
Delft University of Technology: Institutional Repository |
op_collection_id |
fttudelft |
language |
English |
description |
The receiver-to-source backazimuth of atmospheric infrasound signals is biased when cross-winds are present along the propagation path. Infrasound from 598 surface explosions from over 30 years in northern Finland is measured with high spatial resolution on an array 178 km almost due North. The array is situated in the classical shadow-zone distance from the explosions. However, strong infrasound is almost always observed, which is most plausibly due to partial reflections from stratospheric altitudes. The most probable propagation paths are subject to both tropospheric and stratospheric cross-winds, and the wave-propagation modelling in this study yields good correspondence between the observed backazimuth deviation and cross-winds from the European Centre for Medium-Range Weather Forecasts Reanalysis (ERA)-Interim reanalysis product. This study demonstrates that atmospheric cross-winds can be estimated directly from infrasound data using propagation time and backazimuth deviation observations. This study finds these cross-wind estimates to be in good agreement with the ERA-Interim reanalysis. Applied Geophysics and Petrophysics |
format |
Article in Journal/Newspaper |
author |
Blixt, Erik Mårten (author) Näsholm, Sven Peter (author) Gibbons, Steven J. (author) Evers, L.G. (author) Charlton-Perez, Andrew J. (author) Orsolini, Yvan J. (author) Kværna, Tormod (author) |
spellingShingle |
Blixt, Erik Mårten (author) Näsholm, Sven Peter (author) Gibbons, Steven J. (author) Evers, L.G. (author) Charlton-Perez, Andrew J. (author) Orsolini, Yvan J. (author) Kværna, Tormod (author) Estimating tropospheric and stratospheric winds using infrasound from explosions |
author_facet |
Blixt, Erik Mårten (author) Näsholm, Sven Peter (author) Gibbons, Steven J. (author) Evers, L.G. (author) Charlton-Perez, Andrew J. (author) Orsolini, Yvan J. (author) Kværna, Tormod (author) |
author_sort |
Blixt, Erik Mårten (author) |
title |
Estimating tropospheric and stratospheric winds using infrasound from explosions |
title_short |
Estimating tropospheric and stratospheric winds using infrasound from explosions |
title_full |
Estimating tropospheric and stratospheric winds using infrasound from explosions |
title_fullStr |
Estimating tropospheric and stratospheric winds using infrasound from explosions |
title_full_unstemmed |
Estimating tropospheric and stratospheric winds using infrasound from explosions |
title_sort |
estimating tropospheric and stratospheric winds using infrasound from explosions |
publishDate |
2019 |
url |
http://resolver.tudelft.nl/uuid:ef6280d1-5c87-44f0-8e87-8ed1850e42af https://doi.org/10.1121/1.5120183 |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_relation |
http://www.scopus.com/inward/record.url?scp=85070561075&partnerID=8YFLogxK The Journal of the Acoustical Society of America--0001-4966--6d1de847-a798-4090-b117-c05838130a6b http://resolver.tudelft.nl/uuid:ef6280d1-5c87-44f0-8e87-8ed1850e42af https://doi.org/10.1121/1.5120183 |
op_rights |
© 2019 Erik Mårten Blixt, Sven Peter Näsholm, Steven J. Gibbons, L.G. Evers, Andrew J. Charlton-Perez, Yvan J. Orsolini, Tormod Kværna |
op_doi |
https://doi.org/10.1121/1.5120183 |
container_title |
The Journal of the Acoustical Society of America |
container_volume |
146 |
container_issue |
2 |
container_start_page |
973 |
op_container_end_page |
982 |
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1797589605250236416 |