Results 31 to 40 of about 475 (211)

Variability of the Martian ionosphere from the MAVEN Radio Occultation Science Experiment

open access: yesEarth and Planetary Physics, 2019
The Martian ionosphere is produced by a number of controlling processes, including solar extreme ultraviolet radiation (EUV) and X-ray ionization, impact ionization by precipitating electrons, and day-to-night transport.
MeiJuan Yao   +4 more
doaj   +1 more source

Evaluating Local Ionization Balance in the Dayside Martian Ionosphere

open access: yesThe Astronomical Journal
Local ionization balance (LIB), defined as the equality between ion production and ion destruction, is a fundamental assumption underlying classical descriptions of the dayside Martian ionosphere.
Wenjun Liang   +5 more
doaj   +1 more source

Ionospheres and atmosphere of non-magnetic planets and solar wind interaction: Part I - Venus [PDF]

open access: yes, 2002
The solar-planetary interaction is unique for non-magnetic planets, since the solar wind interacts directly with the atmospheres and ionospheres of these planets.
Dwivedi, A. K., Mahajan, K. K.
core   +2 more sources

On the Seasonal Variations of the Ion Precipitation Down to the Upper Atmosphere of Mars

open access: yesThe Astrophysical Journal
We investigate the seasonal variations of ion precipitation, utilizing observations from the Mars Atmosphere and Volatile Evolution mission spanning from 2014 January 4 to 2023 February 14.
Xinzhi Qiu   +5 more
doaj   +1 more source

Building a Continental‐Scale Geodetic Network: The Plate Boundary Observatory (PBO)

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract The Plate Boundary Observatory (PBO) transformed the use of geodesy in North America to study crustal deformation and plate boundary processes by establishing a continental‐scale, standardized, open‐access geodetic network. Built and operated by UNAVCO between 2003 and 2018 as part of the National Science Foundation (NSF)‐funded EarthScope ...
Emily E. Zawacki   +5 more
wiley   +1 more source

The two-frequency, bistatic radar-occultation method for the study of planetary ionospheres scientific reports no. 1 and no. 7 [PDF]

open access: yes, 1965
Method for study of planetary ionospheres based on radio wave propagation between earth and ...
Smith, F. L., III   +3 more
core   +1 more source

Modification of planetary atmospheres by material from the rings [PDF]

open access: yes, 1984
The atmospheres and ionospheres of ringed planets can be, and perhaps are, modified by the injection of gaseous neutral and ionized species, and dust of ring origin.
Atreya, Sushil K.
core   +1 more source

Vortex Dynamics in the Wake of Planetary Ionospheres

open access: yes, 2022
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.
Hector Pérez-de-Tejada, Rickard Lundin
openaire   +2 more sources

Planetary waves and vortex structures in the ionosphere [PDF]

open access: yesAnnales 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
openaire   +3 more sources

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