On the Origin of STEVE: Particle Precipitation or Ionospheric Skyglow?

On the Origin of STEVE: Particle Precipitation or Ionospheric Skyglow?
复制标题

关于史蒂夫的起源:粒子降水还是电离层天辉?

DOI:
10.1029/2018gl078509
复制
发表时间:
2018
影响因子:
5.2
通讯作者:
Donovan, E.
Donovan, E.
中科院分区:
地球科学1区
文献类型:
--
作者:
Gallardo-Lacourt, B.;Liang, J.;Nishimura, Y.;Donovan, E.

文献摘要

参考文献

被引文献

相似文献

电离层研究的最新发展之一是引入了一种名为STEVE(强热发射速度增强)的亚极光奇观。尽管业余夜空观察者已经记录了几十年的STEVE,但对于科学界来说,这是一个令人兴奋的高层大气现象。由业余极光摄影师首次观察到,史蒂夫出现在夜空中作为一个狭窄的发光结构。目前,只有一项科学研究关注STEVE,揭示它对应于位于极光下区域的狭窄(南北延伸数十公里)和长(东西方向数千公里)结构。从这项研究中产生的一个重要和基本的问题是史蒂夫的起源;更具体地说,史蒂夫对应于一个新的电离层现象,还是由于粒子沉淀?在这封信中,我们分析了2008年3月28日的STEVE事件,该事件由亚暴期间事件和大尺度相互作用的时间历史(THEMIS)地面全天成像仪和极轨环境卫星(POES)观测到。POES-17卫星在全天空成像仪视场的中心穿过史蒂夫,使我们能够同时收集粒子数据。这些同时进行的测量表明,STEVE可能与粒子沉淀(电子或离子)无关。因此,这一事件表明,史蒂夫的天空辉光(我们定义为与极光或气辉无关)可能是在电离层中产生的。
One of the recent developments in ionospheric research was the introduction of a subauroral spectacle called STEVE (Strong Thermal Emission Velocity Enhancement). Although STEVE has been documented by amateur night sky watchers for decades, it is an exciting new upper atmospheric phenomenon for the scientific community. Observed first by amateur auroral photographers, STEVE appeared as a narrow luminous structure across the night sky. Currently, only one scientific study has focused on STEVE, revealing that it corresponds to a narrow (tens of kilometers in north‐south extent) and long (thousands of kilometers in east‐west direction) structure located in the subauroral region. An important and fundamental question that arises from this study is the origin of STEVE; more specifically, does STEVE correspond to a new ionospheric phenomenon or is it due to particle precipitation? In this letter, we analyze a STEVE event on 28 March 2008 observed by Time History of Events and Macroscale Interactions during Substorms (THEMIS) ground‐based All‐Sky Imagers and a Polar Orbiting Environmental Satellite (POES). The POES‐17 satellite crossed STEVE at the center of the All‐Sky Imager field‐of‐view, allowing us to collect particle data simultaneously. These concurrent measurements show that STEVE might not be associated with particle precipitation (electrons or ions). Therefore, this event suggests that STEVE's skyglow (which we defined to be unrelated to aurora or airglow) could be generated in the ionosphere.
DOI: --
发表时间: 2013
期刊:
影响因子: --
作者:
E. Donovan;E. Spanswick;Jun Liang;J. Grant;B. Jackel;M. Greffen
通讯作者: M. Greffen
极光区的电离层和场对准电流系统:简明回顾
DOI: --
发表时间: 1982
期刊:
影响因子: --
作者:
Wolfgang Baumjohann
通讯作者: Wolfgang Baumjohann
极化射流事件和弱合成孔径雷达弧的激发
DOI: --
发表时间: 2002
期刊:
影响因子: --
作者:
S. Sazykin;B. Fejer;Y. Galperin;L. Zinin;S. A. Grigoriev;M. Mendillo
通讯作者: M. Mendillo
夜间气辉现象学
DOI: --
发表时间: 1969
期刊:
影响因子: --
作者:
S. Silverman
通讯作者: S. Silverman
DOI: --
发表时间: 1971
期刊:
影响因子: --
作者:
B. Hultqvist;H. Borg;W. Riedler;P. Christophersen
通讯作者: P. Christophersen