Results 51 to 60 of about 2,351 (233)

Oscillation of the Ionosphere at Planetary‐Wave Periods

open access: yesJournal of Geophysical Research: Space Physics, 2018
AbstractF‐region ionospheric oscillations at planetary‐wave (PW) periods (2–20 days) are investigated, with primary focus on those oscillations transmitted to the ionosphere by PW modulation of the vertically propagating tidal spectrum. Tidal effects are isolated by specifically designed numerical experiments performed with the National Center for ...
J. M. Forbes   +3 more
openaire   +4 more sources

Modeling the Detectability of Energetic Heliospheric Ions at Pluto During the New Horizons Flyby

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract We investigate the detectability of heliospheric helium ions at energies up to 100 keV by the New Horizons (NH) spacecraft during its flyby through Pluto's induced magnetosphere. The Pluto Energetic Particle Spectrometer Science Investigation energetic ion detector observed a reduction in their flux by an order of magnitude as the spacecraft ...
Randall T. Ruch   +3 more
wiley   +1 more source

Effects of the 2007 Martian Global Dust Storm on Boundary Positions in the Induced Magnetosphere

open access: yesThe Planetary Science Journal
Mars's magnetosphere is a sensitive system, varying due to external and internal factors, such as solar wind conditions and crustal magnetic fields.
Catherine E. Regan   +10 more
doaj   +1 more source

Research at the Stanford Center for Radar Astronomy Semiannual report no. 5, 1 Jan. - 30 Jun. 1965 [PDF]

open access: yes
Radio and radar astronomy - lunar and planetary ionospheres, atmospheres, and surfaces, and radar studies of sun and interplanetary ...
Eshleman, V. R.
core   +1 more source

Global MHD simulation of flux transfer events at the high-latitude magnetopause observed by the cluster spacecraft and the SuperDARN radar system [PDF]

open access: yes, 2008
A global magnetohydrodynamic numerical simulation is used to study the large-scale structure and formation location of flux transfer events (FTEs) in synergy with in situ spacecraft and ground-based observations. During the main period of interest on the
Daly, P. W.   +7 more
core   +1 more source

Validation of 1‐Day Repeat SWOT Measurements Against Tide‐Gauge and Glider Data Off Canada's West Coast

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The Surface Water and Ocean Topography (SWOT) satellite observations are shown to agree well with tide gauge and underwater glider data in the Northeast Pacific. The SWOT mission measures sea surface height in a 120‐km wide swath. It had a 1‐day repeat cycle for 3 months in 2023.
Guoqi Han   +3 more
wiley   +1 more source

Frequency Characteristics of Magnetosonic Waves Driven by Hot Ring-Beam Protons

open access: yesThe Astrophysical Journal
Magnetosonic (MS) waves can be generated by energetic ring-beam protons, appearing as harmonics near the local proton cyclotron frequency, in the planetary ionospheres/magnetospheres.
Amrutha   +3 more
doaj   +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
Method for study of planetary ionospheres based on radio wave propagation between earth and ...
Eshleman, V. R.   +3 more
core   +1 more source

Magnetic Fluctuations and Turbulence in the Venus Magnetosheath and Wake

open access: yes, 2008
Recent research has shown that distinct physical regions in the Venusian induced magnetosphere are recognizable from the variations of strength and of wave/fluctuation activity of the magnetic field.
Amerstorfer   +21 more
core   +1 more source

Simultaneous Compressive Kinetic‐Scale Fluctuations and Second‐Harmonic Proton Cyclotron Waves Inside a Martian Magnetosheath Structure

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Mars directly interacts with the solar wind and hosts a complex plasma‐wave environment. Using MAVEN observations, we identify an event in the dusk‐side Martian magnetosheath where strongly compressive sub‐cyclotron kinetic‐scale fluctuations coexist with second‐harmonic proton cyclotron waves (PCWs).
Jintian Yang   +10 more
wiley   +1 more source

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