A Three-dimensional Ionospheric Model Using Observed Ionospheric Parameters
A Three-dimensional Ionospheric Model Using Observed Ionospheric Parameters

Author: Charles M. Rush

Publisher:

Published: 1973

Total Pages: 60

ISBN-13:

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An electron density model, which permits a three-dimensional specification of the ionospheric structure, has been developed. The model generates realistic electron density profiles in the altitude range from 100 to 800 km by making use of selected ionospheric parameters that are routinely observed. The model also allows for the calculation of the electron distribution over the entire path of propagation of a radio signal by employing a synoptic mapping technique. The mapping technique enagles ionospheric parameters observed at specific locations to be extended and extrapolated to regions where data are not normally accessible. The electron densities that are computed are done in a manner that is totally consistent with the observed parameters needed to generate the profiles. (Author).

Ionospheric Tomography
Ionospheric Tomography

Author: Viacheslav E. Kunitsyn

Publisher: Springer Science & Business Media

Published: 2003-05-13

Total Pages: 282

ISBN-13: 9783540004042

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Authored by leading international researchers, this monograph introduces and reviews developed tomograhic methods for discovering 2D and 3D structures of the ionosphere, and discusses the experimental implementation of these methods. The detailed derivations and explanations make this book an excellent starting point for non-specialists.

Ion Acceleration in the Magnetosphere and Ionosphere
Ion Acceleration in the Magnetosphere and Ionosphere

Author: Tom Chang

Publisher: American Geophysical Union

Published: 1986

Total Pages: 392

ISBN-13: 0875900631

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Papers and discussions presented at the Chapman Conference on Ion Acceleration in the Magnetosphere, Wellesley, Mass., 6/3-7/1985. Sponsored by the AGU and others.

Improving the Global Ionospheric Predictions of F0F2
Improving the Global Ionospheric Predictions of F0F2

Author: B. S. Dandekar

Publisher:

Published: 1976

Total Pages: 28

ISBN-13:

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Using the method of Rush and Gibbs (1973), weighted means of observed values have been used to update the global prediction of f(o)F2, which are based on monthly median values derived from the Institute of Telecommunications Sciences model (1969). This procedure improved the predictions for magnetically quiet periods, for times near minimum of the solar cycle phase, and for the equinoctial months. Furthermore, a closer grid of ionosonde stations resulted in reducing the error in the f(o)F2 prediction. For the method of Rush and Gibbs (1973) to be operationally successful in global predictions of f(o)F2 however, a closer grid of ionosondes than is presently available is needed. (Author).

Thermospheric Winds and Their Influence on the Ionosphere
Thermospheric Winds and Their Influence on the Ionosphere

Author: R. Rüster

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 25

ISBN-13: 3642660401

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It is well known that thermospheric winds play an important role in the dynamics of the upper atmo sphere and are of major importance for the behaviour of the ionosphere. The methods of calculating these winds are discussed briefly. Comparisons of the calculated winds with observational data are carried out. Some main effects of the winds on the dynamical behaviour of the ionized as well as neutral part of the upper atmosphere are discussed. 2. Calculation of thermospheric winds The system of equations describing the dynamical behaviour of the thermosphere and the ionosphere consists of: b a neutral atmosphere ionosphere continuity equations continuity equations for different ion species and electrons equations of motion (winds) equations of motion for the different constituents (ambi polar diffusion, wind induced drifts, ~ x ~ -drifts) energy balance equations energy balance equations Due to collisions between charged and neutral particles there is an interaction between the ionized and neutral gas. Both sets of equations are coupled, therefore, by the respective drag terms. Because of the complexity of the mathematics involved in solving all equations simultaneously, different approaches have been made to solve parts of this system of differential equations under additional assumptions and restrictions. There are two general approaches: a. ) Solution of the equation of motion of the neutral atmosphere together with the ionospheric continuity equations and equations of motion of the ions.