Results 21 to 30 of about 1,668 (135)
Journal of Astronomy and Space Sciences, 2022 The dynamics of the outer zone radiation belt has received a lot of attention mainly due to the correlation between the occurrence of enhancing relativistic electron flux and spacecraft operation anomalies or even failures (e.g., Baker et al.
Eunah Lee, Ian R. Mann, Louis G. Ozeke
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Semiannual variation of Pc5 ultra-low frequency (ULF) waves and relativistic electrons over two solar cycles of observations: comparison with predictions of the classical hypotheses [PDF]
Annales Geophysicae, 2020 Pc5 ULF (ultra-low frequency) waves can energize electrons to relativistic energies of >2 MeV in geostationary orbits. Enhanced fluxes of such electrons can induce operational anomalies in geostationary satellites.
F. L. Poblet, F. Azpilicueta, H.-L. Lam
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Calculating ultra-low-frequency wave power of the compressional magnetic field vs. L and time: multi-spacecraft analysis using the Van Allen probes, THEMIS and GOES [PDF]
Annales Geophysicae, 2016 Ultra-low-frequency (ULF) pulsations are critical in radial diffusion processes of energetic particles, and the power spectral density (PSD) of these fluctuations is an integral part of the radial diffusion coefficients and of assimilative models of ...
T. E. Sarris, T. E. Sarris, X. Li
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Convolutional Neural Networks for Automated ULF Wave Classification in Swarm Time Series
Atmosphere, 2022 Ultra-low frequency (ULF) magnetospheric plasma waves play a key role in the dynamics of the Earth’s magnetosphere and, therefore, their importance in Space Weather phenomena is indisputable.
Alexandra Antonopoulou +7 more
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Space Weather, 2023 Past studies found that large‐amplitude geomagnetically induced current (GIC) related to magnetospheric Ultra Low Frequency (ULF) waves tend to be associated with periods >120 s at magnetic latitudes >60°, with comparatively (a) smaller GIC amplitudes at
Michael D. Hartinger +11 more
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Atmosphere, 2023 The study presents seismogenic ULF (ultra-low-frequency) wave effects, as observed at our own new magnetic observatory at Asahi (geographic coordinates: 35.770° N, 140.695° E) in Chiba Prefecture.
Masashi Hayakawa +3 more
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Geophysical Research Letters, 2019 Ground‐based Pc5 ultralow frequency (ULF) wave power in multiple ground‐based meridians is compared to the very low frequency (VLF) wave amplitude proxy, derived from Polar Operational Environmental Satellite (POES) precipitation, for the 33 storms ...
Stavros Dimitrakoudis, Ian R. Mann
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Letter to the editor
CUTLASS observations of a high-m ULF wave and its consequences for the DOPE HF Doppler sounder [PDF]
Annales Geophysicae, 1999 The CUTLASS (Co-operative UK Twin Located Auroral Sounding System) Finland HF radar, whilst operating in a high spatial and temporal resolution mode, has measured the ionospheric signature of a naturally occurring ULF wave in scatter artificially ...
D. M. Wright, D. M. Wright, T. K. Yeoman
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Propagation of ULF waves through the ionosphere: Inductive effect for oblique magnetic fields [PDF]
Annales Geophysicae, 2004 Solutions for ultra-low frequency (ULF) wave fields in the frequency range 1–100mHz that interact with the Earth's ionosphere in the presence of oblique background magnetic fields are described.
M. D. Sciffer, C. L. Waters, F. W. Menk
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On the Origin of ULF Magnetic Waves Before the Taiwan Chi-Chi 1999 Earthquake
Frontiers in Earth Science, 2021 The ultra low frequency (ULF) electromagnetic (EM) wave activity usually recorded on Earth’s ground has been found to depend on various types of space weather.
Georgios Anagnostopoulos
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