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Earth, Planets and Space
Fig. 10 | Earth, Planets and Space

Fig. 10

From: Occurrence characteristics of electromagnetic ion cyclotron waves at sub-auroral Antarctic station Maitri during solar cycle 24

Fig. 10

For Maitri, a–c the annual variation of electron density (\(/m^3\)) at 100 km altitude as a function of time for 2011, 2014, 2017, respectively. d–f The annual variation of electron density (\(/m^3\)) at 200 km altitude as a function of time for 2011, 2014, 2017, respectively. g–i show annual variation of Hall conductivity (S/m) as a function of altitude at 14.15 UT hours for 2011, 2014, 2017, respectively. Average solar fluxes for 2011, 2014, and 2017 are 113, 146 and 77 s.f.u., respectively. With white solid and dashed lines, we have shown the average values of the corresponding parameters for winter and summer, respectively. These parameters are obtained using the IRI model and the WDC Kyoto ionospheric conductivity model

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