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Electron density profile modeling
Annals of Geophysics, 1996 The Base Point Model (BPM) is used to model the electron density (N) profile in the ionosphere, This model assumes two Chapman profile expressions one for the bottomside and one for the topside, and requires a characteristic point called "F region base ...
T. Heredia +2 more
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On the determination of ionospheric electron density profiles using multi-frequency riometry [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2022 Radio wave absorption in the ionosphere is a function of electron density, collision frequency, radio wave polarisation, magnetic field and radio wave frequency.
D. McKay +5 more
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A Method for Automatic Inversion of Oblique Ionograms
Remote Sensing, 2022 In this study, a method is proposed to carry out automatic inversion of oblique ionograms to extract the parameters and electron density profile of the ionosphere.
Chunhua Jiang +6 more
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Development of Ionospheric Tomography Model Using GPS [PDF]
Journal of Astronomy and Space Sciences, 2006 We produced the electron density distribution in the ionosphere over South Korea using the data from nine permanent GPS (Global Positioning System) stations which have been operated by KASI (Korea Astronomy and Space Science Institute).
Byung-Kyu Choi +2 more
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The role of atomic oxygen concentration in the ionization balance of the lower ionosphere during solar proton events [PDF]
Annales Geophysicae, 2008 The influence of atomic oxygen concentration on the height distribution of the main positive and negative ions and on electron density in the mesosphere is studied for the conditions prevailing during the solar proton event on 17 January 2005.
A. Osepian +3 more
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Remote Sensing, 2023 Reconstruction of reliable plasmaspheric electron density profiles is important for understanding physical processes in the plasmasphere. This paper proposes a technique that can be applied to correct the plasmaspheric electron density profiles using ray
Desy Purnami Singgih Putri +7 more
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Profile shape parameterization of JET electron temperature and density profiles [PDF]
Nuclear Fusion, 1997 The temperature and density profiles of the Joint European Torus are parameterized using log-additive models in the control variables. Predictive error criteria are used to determine which terms in the log-linear model to include. The density and temperature profiles are normalised to their line averages ($\bar{n}$ and $\bar{T}$).
Schunke, Beatrix +2 more
openaire +2 more sources
Determination of the vertical electron-density profile in ionospheric tomography: experimental results [PDF]
Annales Geophysicae, 1997 The reconstruction of the vertical electron-density profile is a fundamental problem in ionospheric tomography. Lack of near-horizontal ray paths limits the information available on the vertical profile, so that the resultant image of electron density
C. N. Mitchell +3 more
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Retrieval of Electron Density Profile for KOMPSAT-5 GPS Radio Occultation [PDF]
Journal of Astronomy and Space Sciences, 2007 The AOPOD (Atmosphere Occultation and Precision Orbit Determination) system, the secondary payload of KOMPSAT (KOrea Multi-Purpose SATellite)-5 scheduled to be launched in 2010, shall provide GPS radio occultation data.
Woo-Kyoung Lee +8 more
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Annals of Geophysics, 1995 Tests of the analytical model of the electron density profile originally proposed by G, Di Giovanni and S.M. Radicella (DGR model) have shown the need to introduce improvements in order to obtain a model able to reproduce the ionosphere in a larger ...
M. L. Zhang, S. M. Radicella
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