Modulation of radio frequency signals by ULF waves [PDF]
Annales 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 +1 more source
Nonlinear interaction between particles and ultralow frequency waves
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
The influence of solar wind variability on magnetospheric ULF wave power [PDF]
Annales 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 +1 more source
Quantifying the non-linear dependence of energetic electron fluxes in the Earth's radiation belts with radial diffusion drivers [PDF]
Annales 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]
Annales 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
Universe, 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]
Annales 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
The interactions between ULF waves and cold charged particles in the Earth's magnetosphere
地球与行星物理论评, 2022 In the solar wind-magnetosphere coupling processes, many kinds of plasma waves can be excited in the Earth's magnetosphere including ULF waves, hiss waves, chorus waves, etc. Among these waves, ULF waves are featured by the lowest wave frequency (1 mHz～1
Jie Ren, Qiugang Zong
doaj +1 more source
A numerical model to investigate the polarisation azimuth of ULF waves through an ionosphere with oblique magnetic fields [PDF]
Annales Geophysicae, 2005 A one dimensional, computational model for the propagation of ultra low frequency (ULF; 1-100 mHz) wave fields from the Earth's magnetosphere through the ionosphere, atmosphere and into the ground is presented.
M. D. Sciffer, C. L. Waters, F. W. Menk
doaj +1 more source
An initial ULF wave index derived from 2 years of Swarm observations [PDF]
Annales Geophysicae, 2018 The ongoing Swarm satellite mission provides an opportunity for better knowledge of the near-Earth electromagnetic environment. Herein, we use a new methodological approach for the detection and classification of ultra low-frequency (ULF) wave events ...
C. Papadimitriou +4 more
doaj +1 more source