Improvements of the International Reference Ionosphere model for the topside electron density profile
Dieter Bilitza,Bodo W. Reinisch,Sandro M. Radicella,Sergey Pulinets,Tamara Gulyaeva,Lida Triskova +5 more
TLDR
In this article, the authors reviewed the different approaches, their implications for IRI, and their current status, and special emphasis is given to the coupling between topside and plasmaspheric models.Abstract:
[1] Shortcomings of the representation of the topside electron density profile in the International Reference Ionosphere (IRI) model have been noted in comparison with recently analyzed topside sounder data and also with total electron content (TEC) data. Various studies have proposed corrections of the IRI formulas or have introduced a new formalism. This paper reviews the different approaches, their implications for IRI, and their current status. An important challenge for topside modeling is the truthful representation of profiles in the equatorial anomaly (EA) region over the whole range of the EA fountain. This means that the latitudinal representation has to reproduce the merging of the double-peak signature at F region heights into a single peak at the top of the fountain. In this context, special emphasis is given to the coupling between topside and plasmaspheric models.read more
Citations
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Journal ArticleDOI
International Reference Ionosphere 2007: Improvements and new parameters
TL;DR: The International Reference Ionosphere (IRI) is the de facto international standard for the climatological specification of ionospheric parameters and as such it is currently undergoing registration as Technical Specification (TS) of the International Standardization Organization (ISO) as discussed by the authors.
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An analysis of the scale heights in the lower topside ionosphere based on the Arecibo incoherent scatter radar measurements
TL;DR: In this article, the ionospheric scale heights in the lower topside ionosphere were analyzed based on the electron density and temperature profiles observed from the incoherent scatter radar (ISR) at Arecibo (293.2E, 18.3N), Puerto Rico.
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Evaluation of the IRI-2007 model options for the topside electron density
Dieter Bilitza,Dieter Bilitza +1 more
TL;DR: The International Reference Ionosphere (IRI) 2007 provides two new options for the topside electron density profile: (a) a correction of the IRI-2001 model, and (b) the NeQuick topside formula as mentioned in this paper.
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Topside ionospheric scale heights retrieved from Constellation Observing System for Meteorology, Ionosphere, and Climate radio occultation measurements
TL;DR: The vertical scale height (VSH) in the ionosphere can be derived from electron density profiles retrieved from the COSMIC/FORMOSAT-3 (a Constellation Observing System for Meteorology, Ionosphere, and Climate mission; C/F3 for short) ionospheric radio occultation (IRO) observations have been collected to investigate the local time, seasonal, latitudinal, and longitudinal variations of the VSH as discussed by the authors.
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Application of neural networks to South African GPS TEC modelling
TL;DR: In this paper, the authors presented a feasibility study for the development of a Neural Network (NN) based model for the prediction of South African GPS derived total electron content (TEC) which can be considered as the ionosphere's measure of ionisation.
References
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Global Core Plasma Model
TL;DR: The Global Core Plasma Model (GCPM) as discussed by the authors is an attempt to assimilate previous empirical evidence and regional models into a continuous, smooth model of thermal plasma density in the inner magnetosphere.
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The evolution of the DGR approach to model electron density profiles
Sandro M. Radicella,R. Leitinger +1 more
TL;DR: In this paper, the authors describe the evolution of the "profiler" proposed by Di Giovanni and Radicella (1990) to calculate the electron density distribution with height up to the F2 peak based on the Epstein layer.
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An analytical model of the electron density profile in the ionosphere
TL;DR: In this article, the electron density height profiles and their first derivatives with height from the E region to the peak of the F2 layer, as calculated by inversion of ionogram traces, are reproduced with good accuracy by formally identical simple analytical functions, different from those used by other authors.
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Topside electron density in IRI and NeQuick: Features and limitations
TL;DR: In this paper, the authors compare ISIS-2 topology profiles with IRI and NeQuick topology models and identify weak points in their topology formulation, and present an alternative formulation based on k values derived from experimental profiles.