Results 1 to 10 of about 26,395 (183)

The influence of solar wind variability on magnetospheric ULF wave power [PDF]

open access: yesAnnales Geophysicae, 2015
Magnetospheric ultra-low frequency (ULF) oscillations in the Pc 4–5 frequency range play an important role in the dynamics of Earth's radiation belts, both by enhancing the radial diffusion through incoherent interactions and through the coherent ...
D. Pokhotelov   +3 more
doaj   +12 more sources

Modulation of radio frequency signals by ULF waves [PDF]

open access: yesAnnales Geophysicae, 2007
The ionospheric plasma is continually perturbed by ultra-low frequency (ULF; 1–100 mHz) plasma waves that are incident from the magnetosphere.
C. L. Waters   +4 more
doaj   +5 more sources

The ULF wave foreshock boundary: Cluster observations [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2015
The interaction of backstreaming ions with the incoming solar wind in the upstream region of the bow shock gives rise to a number of plasma instabilities from which ultra-low frequency (ULF) waves can grow.
Andres, Nahuel   +4 more
core   +5 more sources

Cross‐Scale Interactions Between ULF Waves, VLF Waves, and Electrons

open access: yesGeophysical Research Letters
Wave‐particle interactions are essential for energy transport in the magnetosphere. In this study, we investigated an event during which electrons interact simultaneously with waves in different scales, using data from the Magnetospheric Multiscale ...
Xing‐Yu Li   +14 more
doaj   +2 more sources

ULF Wave Modeling, Effects, and Applications: Accomplishments, Recent Advances, and Future

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Ultra Low Frequency (ULF) waves play important roles in magnetosphere-ionosphere coupling, ring current and radiation belt dynamics, and modulation of higher frequency wave modes and energetic particle precipitation.
Michael D. Hartinger   +6 more
doaj   +1 more source

Nonlinear interaction between particles and ultralow frequency waves

open access: yes地球与行星物理论评, 2022
One of the most important questions in space physics is how the energy of the solar wind is transmitted to energetic particles in the Earth's magnetosphere, part of which is in the form of ultra-low-frequency (ULF) electromagnetic waves in the mHz ...
Li Li, Xuzhi Zhou, Qiugang Zong
doaj   +1 more source

Quantifying the non-linear dependence of energetic electron fluxes in the Earth's radiation belts with radial diffusion drivers [PDF]

open access: yesAnnales Geophysicae, 2022
In this study, we use mutual information to characterise statistical dependencies of seed and relativistic electron fluxes in the Earth's radiation belts on ultra-low-frequency (ULF) wave power measured on the ground and at geostationary orbit.
A. Osmane   +5 more
doaj   +1 more source

ULF wave activity during the 2003 Halloween superstorm: multipoint observations from CHAMP, Cluster and Geotail missions [PDF]

open access: yesAnnales Geophysicae, 2012
We examine data from a topside ionosphere and two magnetospheric missions (CHAMP, Cluster and Geotail) for signatures of ultra low frequency (ULF) waves during the exceptional 2003 Halloween geospace magnetic storm, when Dst reached ~−380 nT. We
G. Balasis   +8 more
doaj   +1 more source

Comparative Study of Dayside Pulsating Auroras Induced by Ultralow-Frequency Waves

open access: yesUniverse, 2023
Pulsating auroras are usually observed with ultralow-frequency (ULF) waves in the Pc 3–5 band (period 10–600 s). These auroras are thought to result from interactions between energetic electrons and chorus waves, but their relationship with ULF waves ...
Xing-Yu Li   +13 more
doaj   +1 more source

Investigation of  ∼ 20–40 mHz ULF waves and their driving mechanisms in Mercury's dayside magnetosphere [PDF]

open access: yesAnnales Geophysicae, 2017
Ultra-low-frequency (ULF) waves in the  ∼  20–40 mHz range are frequently observed in the Mercury magnetosphere using Mercury Surface Space Environment Geochemistry, and Ranging (MESSENGER) magnetic field data.
E. Liljeblad, T. Karlsson
doaj   +1 more source

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