Solutions for ultra-low frequency (ULF) wave fields in the frequency range 1–100 mHz that interact with the Earth’s ionosphere in the presence of oblique background magnetic fields are described. Analytic expressions for the electric and magnetic wave fields in the magnetosphere, ionosphere and atmosphere are derived within the context of an inductive ionosphere. The inductive shielding effect ...

Wemeasure the flux density, composition, and energy of outflowing ions above the polar cap, accelerated by quasi-static electric fields parallel to the magnetic field and associated with polar cap arcs, using Cluster. Mapping the spacecraft position to its ionospheric foot point, we analyze the dependence of these parameters on the solar zenith angle (SZA). We find a clear transition at SZA bet...

[1] The magnetised plasma of the near-Earth space environment supports ultra-low frequency (ULF; 1–100 mHz), magnetohydrodynamic (MHD) oscillations. For sufficiently large ionospheric conductances, field line resonances (FLRs) form between the northern and southern ionospheres. These conditions are usually met for daytime ionosphere conductance values. The FLRs are normal modes of the system an...

The ionosphere is still considered one of the most significant error sources in precise Global Navigation Satellite Systems (GNSS) positioning. On the other hand, new satellite signals and data processing methods allow for a continuous increase in the accuracy of the available ionosphere models derived from GNSS observables. Therefore, many research groups around the world are conducting resear...

[1] The Venus ionospheric response to solar and solar wind variations is most evident in its magnetic field properties. Early Pioneer Venus observations during the solar maximum revealed that the Venus ionosphere exhibits two magnetic states depending on the solar wind dynamic pressure conditions: magnetized ionosphere with large-scale horizontal magnetic field; or unmagnetized ionosphere with ...

Space vehicles launched at the near-earth orbits are able to cause the disturbances of the near-earth space areas. For purposes of such ionosphere disturbances detection the method of the estimation generalized parameter of ionosphere the relative scattering cross section was developed. It is considered the heavy rocket launch from launch site Baikonur of 25 December 2006. Presented results on ...

Studies of the ionosphere and the physics of the ionospheric processes rely on the knowledge of spatial distribution of the ionospheric plasma. Being the propagation medium for radio waves, the ionosphere significantly affects the performance of various navigation, location, and communication systems. Therefore, investigation into the structure of the ionosphere is of interest for many practica...

1. The Neutral Atmosphere 1.1. The Mesosphere 1.2. The Thermosphere 1.3. The Ionosphere 1.4. The Protonosphere 1.5. The Plasmasphere 1.6. The Magnetosphere 1.7. Geomagnetic Storms 1.8. The Auroras 2. Experimental Techniques 2.1. Measuring the Thermosphere, Mesosphere, and Ionosphere 2.2. Measuring the Magnetosphere and Plasmasphere 3. Theoretical Studies from the Stratopause to the Magnetospaus...

0019-1035/$ see front matter 2009 Elsevier Inc. A doi:10.1016/j.icarus.2009.03.014 * Corresponding author. Address: 6862 Slichter Hal Angeles, 595 Charles E. Young Drive East, Los Angeles E-mail address: [email protected] (H.Y. Wei). Magnetic flux ropes are created in the ionosphere of Venus and Mars during the interaction of the solar wind with their ionospheres and also at Titan during the i...

Titan is the only Moon in the Solar System with a significant permanent atmosphere. Within this nitrogen-methane atmosphere, an ionosphere forms. Titan has no significant magnetic dipole moment, and is usually located inside Saturn's magnetosphere. Atmospheric particles are ionized both by sunlight and by particles from Saturn's magnetosphere, mainly electrons, which reach the top of the atmosp...