SAMI2 model results for the quiet time low latitude ionosphere over India

•EIA region along 75°E longitude has been simulated using SAMI2 model.•Efficacy of SAMI2 model has been tested for different levels of solar flux.•Seasonal and solar activity dependence of an electron hole has been obtained. Efficacy of SAMI2 model for the Indian low latitude region around 75°E long...

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Bibliographic Details
Published in:Advances in space research 2018-04, Vol.61 (8), p.2031-2039
Main Authors: Rao, S.S., Sharma, Shweta, Pandey, R.
Format: Article
Language:English
Subjects:
Electron hole
Equatorial ionization anomaly
Low latitude ionosphere
SAMI2 model
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Summary:•EIA region along 75°E longitude has been simulated using SAMI2 model.•Efficacy of SAMI2 model has been tested for different levels of solar flux.•Seasonal and solar activity dependence of an electron hole has been obtained. Efficacy of SAMI2 model for the Indian low latitude region around 75°E longitudes has been tested for different levels of solar flux. With a slight modification of the plasma drift velocity the SAMI2 model has been successful in reproducing quiet time ionospheric low latitude features like Equatorial Ionization Anomaly. We have also showed the formation of electron hole in the topside equatorial ionosphere in the Indian sector. Simulation results show the formation of electron hole in the altitude range 800–2500 km over the magnetic equator. Indian zone results reveal marked differences with regard to the time of occurrence, seasonal appearances and strength of the electron hole vis-a-vis those reported for the American equatorial region.
ISSN:0273-1177
1879-1948
DOI:10.1016/j.asr.2018.01.016