DOI: 10.1002/2014GL059360
论文题名: Variations of nitric oxide in the mesosphere and lower thermosphere over Antarctica associated with a magnetic storm in April 2012
作者: Isono Y. ; Mizuno A. ; Nagahama T. ; Miyoshi Y. ; Nakamura T. ; Kataoka R. ; Tsutsumi M. ; Ejiri M.K. ; Fujiwara H. ; Maezawa H.
刊名: Geophysical Research Letters
ISSN: 0094-10213
EISSN: 1944-9944
出版年: 2014
卷: 41, 期: 7 起始页码: 2568
结束页码: 2574
语种: 英语
英文关键词: Antarctica
; geomagnetic storm
; lower thermosphere
; mesosphere
; nitric oxide
; precipitated electrons
Scopus关键词: Geomagnetism
; Nitric oxide
; Plasma sheaths
; Storms
; Sun
; Antarctica
; Diurnal variation
; Geomagnetic storm
; Large geomagnetic storms
; Lower thermosphere
; mesosphere
; Mesosphere and lower thermosphere
; Polar-orbiting operational environmental satellites
; Electrons
; diurnal variation
; electron
; geomagnetic storm
; mesosphere
; MetOp
; nitric oxide
; POES
; radiometer
; thermosphere
; Antarctica
; East Antarctica
; Syowa Station
英文摘要: We report extreme enhancements of the nitric oxide (NO) column density observed with the ground-based millimeter-wave spectroscopic radiometer installed at Syowa Station, Antarctica, during a large geomagnetic storm in April 2012. From the NO spectrum line shape and NO column density relationship with solar radiation, we concluded that the NO was emitted in the altitude range between 75-km and 100-km the column density of NO gradually increased during the recovery phase. In addition to variations on a time frame of several days, we found diurnal variations the increase of NO was related to precipitated electrons in the energy range of 30-300-keV observed by Polar-orbiting Operational Environmental Satellite (POES)/The Meteorological Operational (METOP). We found a rapid response (within 1 h) and a one-to-one correspondence between them. For the first time, we show that a remarkable increase of the column density of NO is caused by dawn-dusk asymmetry of the plasma sheet electrons. Key Points Sporadic NO enhancement due to precipitated electrons was clearly detected Correlation between NO intensity and electron flux is analyzed in detail NO increase at UT 0 was caused by dawn-dusk asymmetry of plasma sheet electrons © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897121811&doi=10.1002%2f2014GL059360&partnerID=40&md5=f5d78c483d523ef257c92981ac60daaf
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7477
Appears in Collections: 气候减缓与适应
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作者单位: Solar-Terrestrial Environment Laboratory, Nagoya University, Nagoya, Japan
Recommended Citation:
Isono Y.,Mizuno A.,Nagahama T.,et al. Variations of nitric oxide in the mesosphere and lower thermosphere over Antarctica associated with a magnetic storm in April 2012[J]. Geophysical Research Letters,2014-01-01,41(7).