A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming
This study investigates the response of the semidiurnal tide (SDT) to the 2013 major sudden stratospheric warming (SSW) event using meteor radar wind observations and mechanistic tidal model simulations. In the model, the background atmosphere is constrained to meteorological fields from the Navy Gl...
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ftunivbern:oai:boris.unibe.ch:186150 2023-10-09T21:53:13+02:00 A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming van Caspel, Willem E. Espy, Patrick Hibbins, Robert Stober, Gunter Brown, Peter Jacobi, Christoph Kero, Johan 2023 application/pdf https://boris.unibe.ch/186150/1/JGR_Space_Physics_-_2023_-_Caspel.pdf https://boris.unibe.ch/186150/ eng eng AGU Publications https://boris.unibe.ch/186150/ info:eu-repo/semantics/openAccess van Caspel, Willem E.; Espy, Patrick; Hibbins, Robert; Stober, Gunter; Brown, Peter; Jacobi, Christoph; Kero, Johan (2023). A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming. Journal of Geophysical Research: Space Physics, 128(9) AGU Publications 10.1029/2023JA031680 <http://dx.doi.org/10.1029/2023JA031680> 570 Life sciences biology 620 Engineering 500 Science 530 Physics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2023 ftunivbern https://doi.org/10.1029/2023JA031680 2023-09-10T23:49:44Z This study investigates the response of the semidiurnal tide (SDT) to the 2013 major sudden stratospheric warming (SSW) event using meteor radar wind observations and mechanistic tidal model simulations. In the model, the background atmosphere is constrained to meteorological fields from the Navy Global Environmental Model—High Altitude analysis system. The solar (thermal) and lunar (gravitational) SDT components are forced by incorporating hourly temperature tendency fields from the ERA5 forecast model, and by specifying the M2 and N2 lunar gravitational potentials, respectively. The simulated SDT response is compared against meteor wind observations from the CMOR (43.3°N, 80.8°W), Collm (51.3°N, 13.0°E), and Kiruna (67.5°N, 20.1°E) radars, showing close agreement with the observed amplitude and phase variability. Numerical experiments investigate the individual roles of the solar and lunar SDT components in shaping the net SDT response. Further experiments isolate the impact of changing propagation conditions through the zonal mean background atmosphere, non-linear wave-wave interactions, and the SSW-induced stratospheric ozone redistribution. Results indicate that between 80 and 97 km altitude in the northern hemisphere mid-to-high latitudes the net SDT response is driven by the solar SDT component, which itself is shaped by changing propagation conditions through the zonal mean background atmosphere and by non-linear wave-wave interactions. In addition, it is demonstrated that as a result of the rapidly varying solar SDT during the SSW the contribution of the lunar SDT to the total measured tidal field can be significantly overestimated. Article in Journal/Newspaper Kiruna BORIS (Bern Open Repository and Information System, University of Bern) Kiruna Journal of Geophysical Research: Space Physics 128 9 |
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Open Polar |
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BORIS (Bern Open Repository and Information System, University of Bern) |
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ftunivbern |
language |
English |
topic |
570 Life sciences biology 620 Engineering 500 Science 530 Physics |
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570 Life sciences biology 620 Engineering 500 Science 530 Physics van Caspel, Willem E. Espy, Patrick Hibbins, Robert Stober, Gunter Brown, Peter Jacobi, Christoph Kero, Johan A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming |
topic_facet |
570 Life sciences biology 620 Engineering 500 Science 530 Physics |
description |
This study investigates the response of the semidiurnal tide (SDT) to the 2013 major sudden stratospheric warming (SSW) event using meteor radar wind observations and mechanistic tidal model simulations. In the model, the background atmosphere is constrained to meteorological fields from the Navy Global Environmental Model—High Altitude analysis system. The solar (thermal) and lunar (gravitational) SDT components are forced by incorporating hourly temperature tendency fields from the ERA5 forecast model, and by specifying the M2 and N2 lunar gravitational potentials, respectively. The simulated SDT response is compared against meteor wind observations from the CMOR (43.3°N, 80.8°W), Collm (51.3°N, 13.0°E), and Kiruna (67.5°N, 20.1°E) radars, showing close agreement with the observed amplitude and phase variability. Numerical experiments investigate the individual roles of the solar and lunar SDT components in shaping the net SDT response. Further experiments isolate the impact of changing propagation conditions through the zonal mean background atmosphere, non-linear wave-wave interactions, and the SSW-induced stratospheric ozone redistribution. Results indicate that between 80 and 97 km altitude in the northern hemisphere mid-to-high latitudes the net SDT response is driven by the solar SDT component, which itself is shaped by changing propagation conditions through the zonal mean background atmosphere and by non-linear wave-wave interactions. In addition, it is demonstrated that as a result of the rapidly varying solar SDT during the SSW the contribution of the lunar SDT to the total measured tidal field can be significantly overestimated. |
format |
Article in Journal/Newspaper |
author |
van Caspel, Willem E. Espy, Patrick Hibbins, Robert Stober, Gunter Brown, Peter Jacobi, Christoph Kero, Johan |
author_facet |
van Caspel, Willem E. Espy, Patrick Hibbins, Robert Stober, Gunter Brown, Peter Jacobi, Christoph Kero, Johan |
author_sort |
van Caspel, Willem E. |
title |
A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming |
title_short |
A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming |
title_full |
A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming |
title_fullStr |
A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming |
title_full_unstemmed |
A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming |
title_sort |
case study of the solar and lunar semidiurnal tide response to the 2013 sudden stratospheric warming |
publisher |
AGU Publications |
publishDate |
2023 |
url |
https://boris.unibe.ch/186150/1/JGR_Space_Physics_-_2023_-_Caspel.pdf https://boris.unibe.ch/186150/ |
geographic |
Kiruna |
geographic_facet |
Kiruna |
genre |
Kiruna |
genre_facet |
Kiruna |
op_source |
van Caspel, Willem E.; Espy, Patrick; Hibbins, Robert; Stober, Gunter; Brown, Peter; Jacobi, Christoph; Kero, Johan (2023). A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming. Journal of Geophysical Research: Space Physics, 128(9) AGU Publications 10.1029/2023JA031680 <http://dx.doi.org/10.1029/2023JA031680> |
op_relation |
https://boris.unibe.ch/186150/ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2023JA031680 |
container_title |
Journal of Geophysical Research: Space Physics |
container_volume |
128 |
container_issue |
9 |
_version_ |
1779316460211929088 |