scholarly journals Simulation of low-latitude ionospheric response to 2015 St. Patrick's Day super geomagnetic storm using ionosonde-derived PRE vertical drifts over Indian region

2016 ◽  
Vol 121 (3) ◽  
pp. 2489-2502 ◽  
Author(s):  
L. M. Joshi ◽  
S. Sripathi ◽  
Ram Singh
Keyword(s):  
Geomagnetic Storm ◽  
Indian Region ◽  
Low Latitude ◽  
Ionospheric Response

Low latitude ionospheric response to March 2015 geomagnetic storm using multi-instrument TEC observations over India

2020 ◽  
Vol 365 (12) ◽  
Author(s):  
A. Vishnu Vardhan ◽  
P. Babu Sree Harsha ◽  
D. Venkata Ratnam ◽  
A. K. Upadhayaya
Keyword(s):  
Geomagnetic Storm ◽  
Low Latitude ◽  
Ionospheric Response

Ionospheric response of equatorial and low latitude F-region during the intense geomagnetic storm on 24–25 August 2005

2012 ◽  
Vol 49 (3) ◽  
pp. 518-529 ◽  
Author(s):  
R. de Jesus ◽  
Y. Sahai ◽  
F.L. Guarnieri ◽  
P.R. Fagundes ◽  
A.J. de Abreu ◽  
...  
Keyword(s):  
Geomagnetic Storm ◽  
Low Latitude ◽  
Ionospheric Response ◽  
F Region

Peculiar features of the low‐latitude and midlatitude ionospheric response to the St. Patrick's Day geomagnetic storm of 17 March 2015

2016 ◽  
Vol 121 (8) ◽  
pp. 7941-7960 ◽  
Author(s):  
Chinmaya Nayak ◽  
L.‐C. Tsai ◽  
S.‐Y. Su ◽  
I. A. Galkin ◽  
Adrian Teck Keng Tan ◽  
...  
Keyword(s):  
Geomagnetic Storm ◽  
Low Latitude ◽  
Ionospheric Response

scholarly journals Ionospheric response to the corotating interaction region-driven geomagnetic storm of October 2002

2009 ◽  
Vol 114 (A12) ◽  
pp. n/a-n/a ◽  
Author(s):  
D. Pokhotelov ◽  
C. N. Mitchell ◽  
P. T. Jayachandran ◽  
J. W. MacDougall ◽  
M. H. Denton
Keyword(s):  
Geomagnetic Storm ◽  
Interaction Region ◽  
Corotating Interaction Region ◽  
Ionospheric Response

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.

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