Abstract
We have derived analytic expressions connecting the three plasma parameters namely hm, the height of the F2-peak; Nm, the peak density and Ym, the radius of curvature of the vertical profile at hm, which help us to explain certain features of the plasma distribution in the ionosphere. Although both Nm and TEC (total electron content) exhibit the equatorial anomaly in response to the fountain effect, TEC does not show a noon-time bite-out whereas Nm does. Moreover, we predict that the response of TEC towards the fountain effect is weaker than that of Nm, which we substantiate with simultaneous observations of Nm and TEC in the Indian zone. Thus we have shown that even one-dimensional analysis can explain those effects which are generally thought of as two-dimensional phenomena.
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