globalchange  > 气候减缓与适应
DOI: 10.1002/2017JA025075
Scopus记录号: 2-s2.0-85044538792
论文题名:
Low-Altitude Observations of Recurrent Short-Lived keV Ion Microinjections Inside the Diffuse Auroral Zone
作者: Sauvaud J.-A.; Delcourt D.; Parrot M.; Payan D.; Raita T.; Penou E.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:3
起始页码: 2054
结束页码: 2063
语种: 英语
英文关键词: acceleration ; diffuse auroral zone ; ion beams ; ion diffusion ; waves
英文摘要: The AMBRE experiment onboard the ocean topography mapper JASON-3 aims at measuring the spacecraft potential as well as auroral particle precipitation using two top-hat analyzers for electrons and ions in the 20 eV–28 keV energy range. The JASON-3 spacecraft has a nearly circular orbit at an altitude of 1,336 km with an inclination of 66°, at times probing the equatorward part of the auroral oval in a nearly tangential manner upon leaving the outer radiation belt. In this region of space, during periods of enhanced geomagnetic activity with small or moderate storms, AMBRE detected recurrent “microinjections” of ions with energies in the 200 eV–28 keV range and which exhibit clear time-of-flight dispersion. Ray tracing using single trajectory computations suggests that these ions are launched from a source located in the 8,000–12,000 km altitudinal range and subsequently propagate downward toward the ionosphere. Such observations of quasiperiodic dispersed downflowing ions are new, and we argue that these structures could be produced by ion-wave interactions at midaltitudes. ©2018. The Authors.
Citation statistics:
被引频次[WOS]:3   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114346
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, CNRS, UPS, CNES, Toulouse, France; Laboratoire de Physique des Plasmas, Ecole Polytechnique, CNRS, Université Pierre et Marie Curie, Palaiseau, France; Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, CNRS, Université d'Orléans, Orléans, France; Centre National d'Etudes Spatiales, Toulouse, France; Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland

Recommended Citation:
Sauvaud J.-A.,Delcourt D.,Parrot M.,et al. Low-Altitude Observations of Recurrent Short-Lived keV Ion Microinjections Inside the Diffuse Auroral Zone[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(3)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Sauvaud J.-A.]'s Articles
[Delcourt D.]'s Articles
[Parrot M.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Sauvaud J.-A.]'s Articles
[Delcourt D.]'s Articles
[Parrot M.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Sauvaud J.-A.]‘s Articles
[Delcourt D.]‘s Articles
[Parrot M.]‘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.