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DOI | 10.1029/2019GL084611 |
Constraining the Source Regions of Pulsating Auroras | |
Grono, Eric; Donovan, Eric | |
2019-09-06 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Canada |
英文摘要 | Pulsating auroras have often been erroneously discussed as if they are a single phenomenon. For this reason, the relationship between different pulsating auroras is poorly understood. Grono and Donovan (2018, ) subcategorized pulsating auroras into amorphous pulsating, patchy pulsating, and patchy auroras, which are separable based on their pulsation and structuring. By comparing the latitudes of these auroras to the location of the proton aurora, we have constrained their source regions for the first time. Pulsating aurora does not occur poleward of the proton aurora. Amorphous pulsating aurora occurs within and equatorward of the proton aurora, while patchy pulsating and patchy auroras predominantly occur equatorward of the optical b2i boundary. This indicates that the characteristic structuring of the patchy auroras is unable to form outside of the mostly dipolar inner magnetosphere, but the wave-particle interactions that produce auroral pulsations are less constrained, extending into the transition region where the magnetic field begins to stretch. |
英文关键词 | pulsating aurora proton aurora remote sensing magnetosphere |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000485376000001 |
WOS关键词 | PITCH-ANGLE SCATTERING ; CURRENT SHEET ; ARRAY ; PRECIPITATION ; PERSISTENT |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/186949 |
专题 | 气候变化 |
作者单位 | Univ Calgary, Dept Phys & Astron, Calgary, AB, Canada |
推荐引用方式 GB/T 7714 | Grono, Eric,Donovan, Eric. Constraining the Source Regions of Pulsating Auroras[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Grono, Eric,&Donovan, Eric.(2019).Constraining the Source Regions of Pulsating Auroras.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Grono, Eric,et al."Constraining the Source Regions of Pulsating Auroras".GEOPHYSICAL RESEARCH LETTERS (2019). |
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