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After a brief review of the topside model extrapolation technique, comparisons are presented between the modeled profiles and height-integrated profiles with incoherent scatter radar and satellite measurements for the mid latitude and equatorial ionosphere.
Similar observations for the IRI-2001 topside model were reported by several workers using IRI-2007 model.
The second option (hereafter called IRI-NeQuick) is the NeQuick topside model (Radicella and Leitinger 2001; Coisson et al. 2006).
The results are compared to the three topside model options available in IRI-2007.
Results show an overestimation by the IRI-2001 topside model from 20 to 26 TECU during 2009 to 2013 at the low-latitude Singapore station.
The topside model of the NeQuick2 is represented by a semi-Epstein layer with a height-dependent thickness parameter H which is analytically obtained from bottomside measurements modeling.
Similar(40)
In 2011, all the three topside models have almost similar values of TEC during all the seasons.
Moreover, during each season from 2009 to 2013, all the three topside models predict almost the same TEC values.
This fact promotes Rt as an reliable parameter in the topside modeling.
So, henceforward, when we talk about IRI, we mean that the same is valid for all the corresponding three topside models.
Space Res. 29, 999 108, 2002; Sidorova, L.N., He+ density topside modeling based on ISS-b satellite data.
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