dc.contributor.author | Zhang, Duan | |
dc.contributor.author | Zhang, Qing-He | |
dc.contributor.author | Oksavik, Kjellmar | |
dc.contributor.author | Xing, Zan-Yang | |
dc.contributor.author | Lyons, L.R. | |
dc.contributor.author | Yang, Hui-Gen | |
dc.contributor.author | Li, Guo-Jun | |
dc.contributor.author | Hosokawa, Keisuke | |
dc.contributor.author | Shinbori, Atsuki | |
dc.contributor.author | Ma, Yu-Zhang | |
dc.contributor.author | Wang, Yong | |
dc.contributor.author | Wang, Xiang-Yu | |
dc.date.accessioned | 2024-05-03T11:10:10Z | |
dc.date.available | 2024-05-03T11:10:10Z | |
dc.date.created | 2024-01-03T13:26:59Z | |
dc.date.issued | 2023 | |
dc.identifier.issn | 2169-9380 | |
dc.identifier.uri | https://hdl.handle.net/11250/3129010 | |
dc.description.abstract | Simultaneous observations from Defense Meteorological Satellite Program, Swarm, Resolute Bay all-sky imagers, GPS Total Electron Content and Super Dual Auroral Radar Network, are used to investigate the evolution and key characteristics of the Tongue of Ionization (TOI) being restructured into a polar cap patch. Six satellites crossed the TOI of patch as it moved from the dayside to the nightside. It was initially hot, then a mix of both cold and hot, and finally it became a cold patch. This suggests that cold patch is not only a result of solar extreme ultraviolet radiation, but may also develop when a hot patch cools down. Soft-electron precipitation and flow shears both contribute to the TOI restructuring and the appearance of polar cap patch. The plasma density of patch at ∼500 km was at least 4 times higher than at ∼800 km. The plasma density enhancement gradually decreased as the patch evolved due to decreased production and transport of cold nightside low-density plasma. Moreover, the duskward motion of the patch was influenced by changes in the ionospheric convection pattern. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | AGU | en_US |
dc.relation.uri | https://doi.org/10.1029/2023JA032176 | |
dc.title | Multi-Instrument Observations of the Evolution of Polar Cap Patches Associated With Flow Shears and Particle Precipitation | en_US |
dc.type | Journal article | en_US |
dc.type | Peer reviewed | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright 2023 American Geophysical Union. All Rights Reserved. | en_US |
dc.source.articlenumber | e2023JA032176 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.doi | 10.1029/2023JA032176 | |
dc.identifier.cristin | 2219931 | |
dc.source.journal | Journal of Geophysical Research (JGR): Space Physics | en_US |
dc.identifier.citation | Journal of Geophysical Research (JGR): Space Physics. 2023, 128 (12), e2023JA032176. | en_US |
dc.source.volume | 128 | en_US |
dc.source.issue | 12 | en_US |