Modeling atomic oxygen nightglow during the strong magnetic storm on 20 November 2003

2018 ◽  
Author(s):  
Anattoly V. Tashchilin ◽  
Liudmila A. Leonovich
Keyword(s):  
Magnetic Storm ◽  
Atomic Oxygen ◽  
Strong Magnetic Storm

Peculiarities of the outer radiation belt dynamics during the strong magnetic storm of May 15, 2005

2007 ◽  
Vol 47 (6) ◽  
pp. 696-703 ◽  
Author(s):  
L. V. Tverskaya ◽  
E. A. Ginzburg ◽  
T. A. Ivanova ◽  
N. N. Pavlov ◽  
P. M. Svidsky
Keyword(s):  
Magnetic Storm ◽  
Radiation Belt ◽  
Outer Radiation Belt ◽  
Strong Magnetic Storm

Plasmaspheric response to the geomagnetic storm period March 20–23, 1990, observed by the ACTIVNY (MAGION-2) satellite

1992 ◽  
Vol 70 (7) ◽  
pp. 569-574 ◽  
Author(s):  
M. Förster ◽  
N. Jakowski ◽  
A. Best ◽  
J. Smilauer
Keyword(s):  
Magnetic Storm ◽  
Electron Density ◽  
Geomagnetic Storm ◽  
Joule Heating ◽  
Growth Phase ◽  
Langmuir Probe ◽  
Atomic Oxygen ◽  
Scale Height ◽  
Ionospheric Response ◽  
Increased Pressure

Langmuir probe data obtained during the storm period March 20–23, 1990, on board the MAGION-2 subsatellite of the ACTIVNY experiment are analyzed to study the plasmaspheric and ionospheric response to a magnetic storm. The data indicate a well-pronounced equatorward edge of the electron density trough in the afternoon (18:15 LT) at about 800 km height that moves towards lower latitudes during the course of the storm. It is interesting to note that the electron density inside the plasmasphere is increased by more than 20% in the morning shortly after sunrise (07:30 LT). This is due to enhanced O+ densities in the lower plasmasphere during the growth phase of the geomagnetic storm as measured by the ion mass spectrometer NAM-5 onboard the main satellite. It is suggested that the source for the increased density is thermospheric Joule heating at auroral latitudes with a commensurate increase in thermospheric pressure. This increased pressure causes the local thermosphere to expand both upward and equatorward. The increased atomic-oxygen scale height coupled with equatorward motion of fhermospheric perturbations results in an increased O density and resulting O+ density within the lower plasmasphere. The observations indicate a storm-induced compression of the plasmasphere that favourizes an enhanced outflow of plasma into the ionosphere leading to an increased nighttime F2-layer ionization and a depletion of the plasmasphere during the following hours.

Daytime geomagnetic disturbances at high latitudes during a strong magnetic storm of June 21–23, 2015: The storm initial phase

2016 ◽  
Vol 56 (3) ◽  
pp. 281-292 ◽  
Author(s):  
L. I. Gromova ◽  
N. G. Kleimenova ◽  
A. E. Levitin ◽  
S. V. Gromov ◽  
L. A. Dremukhina ◽  
...  
Keyword(s):  
Magnetic Storm ◽  
Initial Phase ◽  
High Latitudes ◽  
Geomagnetic Disturbances ◽  
Strong Magnetic Storm

Unusual spatial-temporal dynamics of geomagnetic disturbances during the main phase of the extremely strong magnetic storm of November 7–8, 2004

2006 ◽  
Vol 46 (5) ◽  
pp. 580-592 ◽  
Author(s):  
O. V. Kozyreva ◽  
N. G. Kleimenova ◽  
T. A. Kornilova ◽  
K. Kauriste ◽  
J. Manninen ◽  
...  
Keyword(s):  
Magnetic Storm ◽  
Temporal Dynamics ◽  
Main Phase ◽  
Geomagnetic Disturbances ◽  
Strong Magnetic Storm

Response of Hainan GPS ionospheric scintillations to the different strong magnetic storm conditions

2008 ◽  
Vol 41 (4) ◽  
pp. 579-586 ◽  
Author(s):  
S.P. Shang ◽  
J.K. Shi ◽  
P.M. Kintner ◽  
W.M. Zhen ◽  
X.G. Luo ◽  
...  
Keyword(s):  
Magnetic Storm ◽  
Strong Magnetic Storm ◽  
Ionospheric Scintillations

scholarly journals Parameters of large-scale TEC disturbances during the strong magnetic storm on 29 October 2003

2008 ◽  
Vol 113 (A3) ◽  
pp. n/a-n/a ◽  
Author(s):  
N. P. Perevalova ◽  
E. L. Afraimovich ◽  
S. V. Voeykov ◽  
I. V. Zhivetiev
Keyword(s):  
Magnetic Storm ◽  
Large Scale ◽  
Strong Magnetic Storm

scholarly journals Studying 630 nm atomic oxygen emission sources during strong magnetic storms in the night mid-latitude ionosphere

2019 ◽  
Vol 5 (2) ◽  
pp. 33-38
Author(s):  
Людмила Леонович ◽  
Lyudmila Leonovich ◽  
Анатолий Тащилин ◽  
Anatoliy Tashchilin ◽  
Сергей Лунюшкин ◽  
...  
Keyword(s):  
Magnetic Storm ◽  
Emission Intensity ◽  
Atomic Oxygen ◽  
Geomagnetic Storms ◽  
Energetic Electron ◽  
Magnetic Storms ◽  
Optical Measurements ◽  
Model Calculations ◽  
Good Agreement ◽  
Red Line

We analyze significant increases in 630 nm atomic oxygen night emissions during very strong geomagnetic storms, using optical measurements, theoretical modeling, and magnetogram inversion technique (MIT) data. It is shown that during strong magnetic storms when electron precipitation equatorial boundary at the night sector expands up to ~40°, the interaction of energetic electron flux with thermospheric components may cause extreme increases in the 630 nm emission intensity. Model calculations of the red line intensity show good agreement with observational data. Using the November 20, 2003 magnetic storm as an example, we have found that oxygen atom collisions with thermal Maxwell and superthermal electrons make a major contribution to the integral emission intensity. Thermospheric density variations during the magnetic storm significantly affect the red line generation.

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