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
doaj +1 more source
Modulation of chorus intensity by ULF waves deep in the inner magnetosphere [PDF]
, 2016 Previous studies have shown that chorus wave intensity can be modulated by Pc4-Pc5 compressional ULF waves. In this study, we present Van Allen Probes observation of ULF wave modulating chorus wave intensity, which occurred deep in the magnetosphere. The
Chan, Anthony A. +6 more
core +1 more source
Geophysical Monograph Series, Page i-xiv., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
wiley +1 more source
High-latitude HF Doppler observations of ULF waves. 1. Waves with large spatial scale sizes [PDF]
Annales Geophysicae, 1997 A quantitative study of observations of the ionospheric signatures of magnetospheric ultra low frequency (ULF) waves by a high-latitude (geographic: 69.6°N 19.2°E) high-frequency Doppler sounder has been undertaken.
D. M. Wright +2 more
doaj +1 more source
Modeling radiation belt radial diffusion in ULF wave fields: 1. Quantifying ULF wave power at geosynchronous orbit in observations and in global MHD model [PDF]
, 2010 [1] To provide critical ULF wave field information for radial diffusion studies in the radiation belts, we quantify ULF wave power (f = 0.5–8.3 mHz) in GOES observations and magnetic field predictions from a global magnetospheric model.
Huang, Chia-Lin L. +3 more
core +2 more sources
Chapman Conference on Magnetospheric ULF Waves [PDF]
Eos, Transactions American Geophysical Union, 2005 Waves in the ultra‐low‐frequency (ULF) band (periods of 1 to 1000 s) are a permanent feature in the region called the magnetosphere, where the behavior of charged particles is influenced by the Earth's intrinsic magnetic field. These waves transport momentum and energy from the solar wind to the magnetosphere and farther down to the ionosphere.
K. Takahashi +4 more
openaire +1 more source
Control of ULF Wave Accessibility to the Inner Magnetosphere by the Convection of Plasma Density [PDF]
, 2018 During periods of storm activity and enhanced convection, the plasma density in the afternoon sector of the magnetosphere is highly dynamic due to the development of plasmaspheric drainage plume (PDP) structure.
Degeling, AW +5 more
core +3 more sources
Modeling radiation belt radial diffusion in ULF wave fields: 2. Estimating rates of radial diffusion using combined MHD and particle codes [PDF]
, 2010 [1] Quantifying radial transport of radiation belt electrons in ULF wave fields is essential for understanding the variability of the trapped relativistic electrons.
Elkington, Scot R. +3 more
core +2 more sources
Pitch Angle Structures of Ring Current Ions Induced by Evolving Poloidal Ultra‐Low Frequency Waves
Geophysical Research Letters, 2020 Ultra‐low frequency (ULF) waves can effectively accelerate ring current ions through drift‐bounce resonance. Conventional theories have been developed to understand this resonance since the dawn of the space age, which usually assume ULF waves are quasi ...
Z.‐Y. Liu +4 more
doaj +1 more source
The Generation of ULF/ELF/VLF Waves in the Ionosphere by Modulated Heating
Universe, 2021 One of the most important effects of ionospheric modification by high power, high frequency (HF) waves is the generation of ultra low frequency/extremely low frequency/very low frequency (ULF/ELF/VLF) waves by modulated heating.
Zhe Guo, Hanxian Fang, Farideh Honary
doaj +1 more source