Results 1 to 10 of about 606 (259)
Photochemistry of planetary ionospheres [PDF]
Advances in Space Research, 1987 The basic photochemical processes in the upper atmospheres and ionospheresof the various bodiesin our solar system (planets, moons and comets)are similar. However, there are many different factors (e.g. gas composition, energy input, gravity) which control/change the relative importance of these controlling processes.
A. F. Nagy
openalex +4 more sources
Derivation of a planetary ionospheric storm index [PDF]
Annales Geophysicae, 2008 Abstract. The planetary ionospheric storm index, Wp, is deduced from the numerical global ionospheric GPS-IONEX maps of the vertical total electron content, TEC, for more than half a solar cycle, 1999–2008. The TEC values are extracted from the 600 grid points of the map at latitudes 60° N to 60° S with a step of 5° and longitudes 0° to 345° E with a ...
T.L. Gulyaeva, I. Stanisławska
openalex +6 more sources
Planetary waves and vortex structures in the ionosphere [PDF]
Annales Geophysicae, 2009 Abstract. The problem of propagation of large-scale vortices in the ionosphere is investigated. Permanently acting fundamental factors have been discovered making it possible to reveal the mechanisms of generation of large-scale vortices and planetary waves in conductive atmosphere.
A. G. Khantadze +3 more
openalex +6 more sources
Meteoric ions in planetary ionospheres [PDF]
Advances in Space Research, 2001 Solar system debris, in the form of meteoroids, impacts every planet. The flux, relative composition and speed of the debris at each planet depends on the planet's size and location in the solar system. Ablation in the atmosphere evaporates the meteoric material and leaves behind metal atoms.
W. D. Pesnell, J. M. Grebowsky
openalex +3 more sources
On the new modes of planetary-scale electromagnetic waves in the ionosphere [PDF]
Annales Geophysicae, 2004 Abstract. Using an analogy method the frequencies of new modes of the electromagnetic planetary-scale waves (with a wavelength of 103 km or more), having a weather forming nature, are found at different ionospheric altitudes. This method gives the possibility to determine spectra of ionospheric electromagnetic perturbations directly from the dynamic ...
G. D. Aburjania +4 more
openalex +7 more sources
Planetary ionospheres – sources and dynamic drivers [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractExternal energy inputs into all planetary upper atmospheres (including more than a half dozen moons with atmospheres) are comprised of combinations of solar EUV, soft x-rays, solar energetic particles, solar wind charged particles, magnetospherically accelerated particles, solar wind electric field, interplanetary dust particles as well as ...
J. M. Grebowsky, A. C. Aikin
openalex +3 more sources
Ionospheric Ambipolar Electric Fields of Mars and Venus: Comparisons Between Theoretical Predictions and Direct Observations of the Electric Potential Drop [PDF]
Geophysical Research Letters, 2019 We test the hypothesis that their dominant driver of a planetary ambipolar electric field is the ionospheric electron pressure gradient (∇Pe). The ionospheres of Venus and Mars are mapped using Langmuir probe measurements from NASA's Pioneer Venus ...
Glyn Collinson +7 more
doaj +2 more sources
Excitation of planetary electromagnetic waves in the inhomogeneous ionosphere [PDF]
Annales Geophysicae, 2014 Abstract. In this paper we develop a new method for the analysis of excitation and propagation of planetary electromagnetic waves (PEMW) in the ionosphere of the Earth. The nonlinear system of equations for PEMW, valid for any height, from D to F regions, including intermediate altitudes between D and E and between E and F regions, is derived.
Yuriy Rapoport +6 more
openalex +5 more sources
Vortex Dynamics in the Wake of Planetary Ionospheres
, 2021 Measurements conducted with spacecraft around Venus and Mars have shown the presence of vortex structures in their plasma wake. Such features extend across distances of the order of a planetary radius and travel along their wake with a few minutes rotation period.
H. Pérez‐de‐Tejada, R. Lundin
openalex +4 more sources
Transplanet: A web service dedicated to modeling of planetary ionospheres
Planetary and Space Science, 2019 Abstract We present a new web service ( http://transplanet.irap.omp.eu/ ) dedicated to the modeling of planetary ionospheres. Thanks to the development made for IRAP ionospheric model IPIM, it uses a unified description of the different ionized environments (presently Venus, Earth, Mars and Jupiter).
Pierre‐Louis Blelly +9 more
openalex +3 more sources