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...
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Online Access: | https://centaur.reading.ac.uk/85478/ https://doi.org/10.1121/1.5120183 |
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ftunivreading:oai:centaur.reading.ac.uk:85478 2024-05-19T07:45:55+00:00 Estimating tropospheric and stratospheric winds using infrasound from explosions Blixt, Erik Mårten Näsholm, Sven Peter Gibbons, Steven J. Evers, Läslo G. Charlton-Perez, Andrew Orsolini, Yvan J. Kværna, Tormod 2019 https://centaur.reading.ac.uk/85478/ https://doi.org/10.1121/1.5120183 unknown Acoustical Society of America Blixt, E. M., Näsholm, S. P., Gibbons, S. J., Evers, L. G., Charlton-Perez, A. <https://centaur.reading.ac.uk/view/creators/90000511.html>, Orsolini, Y. J. and Kværna, T. (2019) Estimating tropospheric and stratospheric winds using infrasound from explosions. The Journal of the Acoustical Society of America, 146 (2973). pp. 973-982. ISSN 0001-4966 doi: https://doi.org/10.1121/1.5120183 <https://doi.org/10.1121/1.5120183> Article PeerReviewed 2019 ftunivreading https://doi.org/10.1121/1.5120183 2024-05-01T00:20:57Z 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. Article in Journal/Newspaper Northern Finland CentAUR: Central Archive at the University of Reading The Journal of the Acoustical Society of America 146 2 973 982 |
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Open Polar |
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CentAUR: Central Archive at the University of Reading |
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ftunivreading |
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unknown |
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. |
format |
Article in Journal/Newspaper |
author |
Blixt, Erik Mårten Näsholm, Sven Peter Gibbons, Steven J. Evers, Läslo G. Charlton-Perez, Andrew Orsolini, Yvan J. Kværna, Tormod |
spellingShingle |
Blixt, Erik Mårten Näsholm, Sven Peter Gibbons, Steven J. Evers, Läslo G. Charlton-Perez, Andrew Orsolini, Yvan J. Kværna, Tormod Estimating tropospheric and stratospheric winds using infrasound from explosions |
author_facet |
Blixt, Erik Mårten Näsholm, Sven Peter Gibbons, Steven J. Evers, Läslo G. Charlton-Perez, Andrew Orsolini, Yvan J. Kværna, Tormod |
author_sort |
Blixt, Erik Mårten |
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 |
publisher |
Acoustical Society of America |
publishDate |
2019 |
url |
https://centaur.reading.ac.uk/85478/ https://doi.org/10.1121/1.5120183 |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_relation |
Blixt, E. M., Näsholm, S. P., Gibbons, S. J., Evers, L. G., Charlton-Perez, A. <https://centaur.reading.ac.uk/view/creators/90000511.html>, Orsolini, Y. J. and Kværna, T. (2019) Estimating tropospheric and stratospheric winds using infrasound from explosions. The Journal of the Acoustical Society of America, 146 (2973). pp. 973-982. ISSN 0001-4966 doi: https://doi.org/10.1121/1.5120183 <https://doi.org/10.1121/1.5120183> |
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 |
_version_ |
1799486032286056448 |