globalchange  > 科学计划与规划
DOI: 10.1002/2015GL065172
论文题名:
Low-latitude 10 eV electrons: Nighttime plasma line as a new research capability
作者: Carlson H.C.; Djuth F.T.; Perillat P.; Sulzer M.
刊名: Geophysical Research Letters
ISSN: 0094-9380
EISSN: 1944-9111
出版年: 2015
卷: 42, 期:18
起始页码: 7255
结束页码: 7263
语种: 英语
英文关键词: low-latitude particle precipitation ; nighttime plasma line ; plasma wave excitation
Scopus关键词: Electron gas ; F region ; Radar ; Causative mechanisms ; Excitation mechanisms ; Incoherent scatter radar ; Particle precipitation ; Plasma lines ; Research capabilities ; Space environment ; Wave excitation ; Precipitation (chemical) ; amplitude ; calibration ; electron density ; F region ; frequency analysis ; latitude ; plasma ; precipitation (chemistry) ; radar ; research work ; temperature effect
英文摘要: The incoherent scatter radar (ISR) plasma line (PL) in daylight is excited by photoelectrons. Measurement of its intensity (κTp) has long been used for their study. At night, despite the absence of any other excitation mechanism, the PL intensity should have a thermal amplitude level κTe, determined by the electron gas temperature Te. To the contrary Carlson et al. (1982) found nighttime PLs over Arecibo enhanced >3 times above thermal intensities despite the absence of any known causative mechanism. Here we present discovery that nighttime PLs frequently recur, with quite variable enhancement. In the absence of direct solar EUV, these enhanced PLs must be produced by particle precipitation, manifested by the presence of variable recurring F region ~10 eV electron fluxes. We see this as offering a new tool for space environment studies, opening a new era of particle precipitation research and ISR calibration. © 2015 American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945207988&doi=10.1002%2f2015GL065172&partnerID=40&md5=bdf1354d322f8228ddb48ac6b00a3cdf
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8995
Appears in Collections:科学计划与规划
气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: CASS, Utah State University, Logan, UT, United States

Recommended Citation:
Carlson H.C.,Djuth F.T.,Perillat P.,et al. Low-latitude 10 eV electrons: Nighttime plasma line as a new research capability[J]. Geophysical Research Letters,2015-01-01,42(18).
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Carlson H.C.]'s Articles
[Djuth F.T.]'s Articles
[Perillat P.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Carlson H.C.]'s Articles
[Djuth F.T.]'s Articles
[Perillat P.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Carlson H.C.]‘s Articles
[Djuth F.T.]‘s Articles
[Perillat P.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.