Effects of E-region electric fields on F-region parameters at the magnetic equator |
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| Authors: | KSen Gupta BVKrishna Murthy |
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| Institution: | Space Physics Division, Vikram Sarabhai Space Centre, Trivandrum 695022, India |
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| Abstract: | The effects of E-region electric fields on F-region parameters like height of constant electron density contours (hN) and semi-thickness, at an equatorial station, Trivandrum, are investigated. The E-region east-west electric field (Ey) has been deduced using the horizontal magnetic field values from the ground magnetograms. It is found that the semi-thickness parameter and hN follow closely the E-region electric field (Ey) variations in the forenoon and noon periods. In the afternoon, it is shown that there is close association between hN and Ey, when the electric field variations are large. On a day-to-day basis also, hN and the E-region electric field show very good correlation in the forenoon and noon hours. It is also shown that higher levels are affected more than the lower levels in the F-region by Ey. |
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