Occurrence of heavy precipitation influenced by solar wind high-speed streams through vertical atmospheric coupling
A tendency of heavy rainfall-induced floods in Canada to follow arrivals of solar wind high-speed streams (HSSs) from coronal holes is observed. Precipitation events during the winter, including extreme freezing rain events in the province of New Brunswick, also tend to occur following HSSs. More di...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-07-01
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| Series: | Frontiers in Astronomy and Space Sciences |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fspas.2023.1196231/full |
| _version_ | 1797768585508028416 |
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| author | Paul Prikryl Vojto Rušin |
| author_facet | Paul Prikryl Vojto Rušin |
| author_sort | Paul Prikryl |
| collection | DOAJ |
| description | A tendency of heavy rainfall-induced floods in Canada to follow arrivals of solar wind high-speed streams (HSSs) from coronal holes is observed. Precipitation events during the winter, including extreme freezing rain events in the province of New Brunswick, also tend to occur following HSSs. More direct evidence is provided using the satellite-based gridded precipitation dataset Integrated Multi-satellitE Retrievals for GPM (IMERG) in the superposed epoch analysis of high-rate precipitation. The results show an increase in the high-rate daily precipitation occurrence over Canada following arrivals of major HSSs. This is consistent with previously published results for other mid-latitude geographic regions. The ERA5 meteorological reanalysis is used to evaluate the slantwise convective available potential energy (SCAPE) that is of importance in the development of storms. The role of the solar wind-magnetosphere-ionosphere-atmosphere coupling, mediated by globally propagating aurorally excited atmospheric gravity waves releasing the conditional symmetric instability in the troposphere leading to convection and precipitation, is proposed. |
| first_indexed | 2024-03-12T20:56:29Z |
| format | Article |
| id | doaj.art-c7d9febd03e645468814d88e9f16aa04 |
| institution | Directory Open Access Journal |
| issn | 2296-987X |
| language | English |
| last_indexed | 2024-03-12T20:56:29Z |
| publishDate | 2023-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Astronomy and Space Sciences |
| spelling | doaj.art-c7d9febd03e645468814d88e9f16aa042023-07-31T15:36:00ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2023-07-011010.3389/fspas.2023.11962311196231Occurrence of heavy precipitation influenced by solar wind high-speed streams through vertical atmospheric couplingPaul Prikryl0Vojto Rušin1Physics Department, University of New Brunswick, Fredericton, NB, CanadaAstronomical Institute, Slovak Academy of Sciences, Tatranská Lomnica, SlovakiaA tendency of heavy rainfall-induced floods in Canada to follow arrivals of solar wind high-speed streams (HSSs) from coronal holes is observed. Precipitation events during the winter, including extreme freezing rain events in the province of New Brunswick, also tend to occur following HSSs. More direct evidence is provided using the satellite-based gridded precipitation dataset Integrated Multi-satellitE Retrievals for GPM (IMERG) in the superposed epoch analysis of high-rate precipitation. The results show an increase in the high-rate daily precipitation occurrence over Canada following arrivals of major HSSs. This is consistent with previously published results for other mid-latitude geographic regions. The ERA5 meteorological reanalysis is used to evaluate the slantwise convective available potential energy (SCAPE) that is of importance in the development of storms. The role of the solar wind-magnetosphere-ionosphere-atmosphere coupling, mediated by globally propagating aurorally excited atmospheric gravity waves releasing the conditional symmetric instability in the troposphere leading to convection and precipitation, is proposed.https://www.frontiersin.org/articles/10.3389/fspas.2023.1196231/fullhigh-speed solar windmagnetosphere–ionosphere–atmosphere couplingatmospheric gravity wavesheavy rainfall-induced floodshigh-rate precipitationmoist symmetric instability |
| spellingShingle | Paul Prikryl Vojto Rušin Occurrence of heavy precipitation influenced by solar wind high-speed streams through vertical atmospheric coupling Frontiers in Astronomy and Space Sciences high-speed solar wind magnetosphere–ionosphere–atmosphere coupling atmospheric gravity waves heavy rainfall-induced floods high-rate precipitation moist symmetric instability |
| title | Occurrence of heavy precipitation influenced by solar wind high-speed streams through vertical atmospheric coupling |
| title_full | Occurrence of heavy precipitation influenced by solar wind high-speed streams through vertical atmospheric coupling |
| title_fullStr | Occurrence of heavy precipitation influenced by solar wind high-speed streams through vertical atmospheric coupling |
| title_full_unstemmed | Occurrence of heavy precipitation influenced by solar wind high-speed streams through vertical atmospheric coupling |
| title_short | Occurrence of heavy precipitation influenced by solar wind high-speed streams through vertical atmospheric coupling |
| title_sort | occurrence of heavy precipitation influenced by solar wind high speed streams through vertical atmospheric coupling |
| topic | high-speed solar wind magnetosphere–ionosphere–atmosphere coupling atmospheric gravity waves heavy rainfall-induced floods high-rate precipitation moist symmetric instability |
| url | https://www.frontiersin.org/articles/10.3389/fspas.2023.1196231/full |
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