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Effects of Space Weather on the Ionosphere: A Case Study of Geomagnetic Storms During 17-28 February, 2014

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Title Statement Effects of Space Weather on the Ionosphere: A Case Study of Geomagnetic Storms During 17-28 February, 2014
 
Added Entry - Uncontrolled Name Aol, Sharon ; Mbarara University of Science and Technology
International Science program
 
Uncontrolled Index Term Ionospheric Physics
Space weather, Geomagnetic storms, Ionospheric disturbances
 
Summary, etc. This study focused on the effects of space weather on the ionosphere during geomagnetic storms for the<br />period 17 - 28 February, 2014 over the African low latitude region. During this period, a series of in-<br />terplanetary shocks successively hit the Earth’s magnetosphere, leading to geomagnetic storms. The dual<br />frequency Global Positioning System (GPS) data was analysed to obtain Total Electron Content (TEC) and<br />this was used to study the response of the ionosphere to the geomagnetic storms. Positive and negative<br />ionospheric storm effects were observed during the period of study. These storm effects were discussed in<br />terms of the Prompt Penetration Electric Field (PPEF), storm induced wind-lifting effect, and Disturbance<br />Dynamo (DD) electric field. Although these storms occurred during the same period and were all driven<br />by Coronal Mass Ejections (CMEs), their impacts and associated features on the ionosphere varied due<br />to different contributing factors to their driving mechanisms. In addition, Rate Of Change of TEC Index<br />(ROTI) was used to examine the occurrence of ionospheric irregularities. The generation of post-sunset<br />irregularities were attributed to the Rayleigh Taylor Instability mechanism.
 
Publication, Distribution, Etc. Indian Journal of Radio & Space Physics (IJRSP)
2020-09-02 14:52:19
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJRSP/article/view/19762
 
Data Source Entry Indian Journal of Radio & Space Physics (IJRSP); ##issue.vol## 48, ##issue.no## 1-2 (2019): Indian Journal of Radio & Space Physics
 
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