Very low-frequency radio waves drain Earth’s inner radiation belt of satellite-killing electrons

Physics Today ◽  
2008 ◽  
Vol 61 (8) ◽  
pp. 18-21 ◽  
Author(s):  
Charles Day
Keyword(s):  
Radiation Belt ◽  
Low Frequency ◽  
Radio Waves ◽  
Very Low Frequency

scholarly journals Investigation of ionosphere response to geomagnetic storms over the propagation paths of very low frequency radio waves

2020 ◽  
Author(s):  
Victor U. J. Nwankwo ◽  
Jean-Pierre Raulin ◽  
Dra. Emilia Correia ◽  
William F. Denig ◽  
Olanike Akinola ◽  
...  
Keyword(s):  
Geomagnetic Storms ◽  
Low Frequency ◽  
Radio Waves ◽  
Very Low Frequency ◽  
Propagation Paths

Very-Low-Frequency Radio Waves and the Ionosphere

Science ◽  
1963 ◽  
Vol 142 (3591) ◽  
pp. 508-510
Author(s):  
D. D. Crombie
Keyword(s):  
Low Frequency ◽  
Radio Waves ◽  
Very Low Frequency

Modeling of temporal variation of very low frequency radio waves over long paths as observed from Indian Antarctic stations

2017 ◽  
Vol 122 (7) ◽  
pp. 7698-7712 ◽  
Author(s):  
Sudipta Sasmal ◽  
Tamal Basak ◽  
Suman Chakraborty ◽  
Sourav Palit ◽  
Sandip K. Chakrabarti
Keyword(s):  
Temporal Variation ◽  
Low Frequency ◽  
Radio Waves ◽  
Very Low Frequency ◽  
Long Paths

The ionospheric propagation of low- and very-low-frequency radio waves over distances less than 1000 km

1951 ◽  
Vol 98 (53) ◽  
pp. 221-236 ◽  
Author(s):  
R.N. Bracewell ◽  
K.G. Budden ◽  
J.A. Ratcliffe ◽  
T.W. Straker ◽  
K. Weekes
Keyword(s):  
Low Frequency ◽  
Radio Waves ◽  
Very Low Frequency ◽  
Ionospheric Propagation

scholarly journals A review of unusual VLF bursty-patches observed in Northern Finland for Earth, Planets and Space

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Claudia Martinez-Calderon ◽  
Jyrki K. Manninen ◽  
Jemina T. Manninen ◽  
Tauno Turunen
Keyword(s):  
Low Frequency ◽  
Spectral Features ◽  
Radio Waves ◽  
Very Low Frequency ◽  
Ground Station ◽  
New Type ◽  
The Moment ◽  
Electron Gyrofrequency ◽  
Different Characteristics ◽  
Large Frequency

AbstractUsing numerical filtering techniques allowing us to reduce noise from sferics, we are able to clearly study a new type of differently structured very low frequency (VLF) radio waves above f = 4 kHz at the ground station of Kannuslehto in northern Finland (KAN, MLAT = 64.4°N, L = 5.5). These emissions are intriguing, since they are detected at frequencies above half the electron gyrofrequency in the equatorial plane (fce) for the L-shell of Kannuslehto (fce ~ 5–6 kHz). They are commonly observed at Kannuslehto, but have also been infrequently reported at other stations, sometimes under different names. Their possible common origin and manner of propagation is still under investigation. This paper unifies the nomenclature by regrouping all these waves detected at frequencies higher than the local equatorial 0.5 fce at the L-shell of observation under the name of VLF bursty-patches. While these waves have different spectral features, they appeared mostly composed of hiss bursts with durations of a few seconds to several minutes. They also show periodic features with varying periodicity and shape. They are sometimes characterized by single bursts covering very large frequency ranges of several kHz. We also give a review of the different characteristics of VLF bursty-patches observed at Kannuslehto, which at the moment, is the station with the highest observation rate. We present recent observations between 2019 and 2021.

scholarly journals Plasma Waves in the Inner Magnetosphere

2021 ◽  
pp. 85-119
Author(s):  
Hannu E. J. Koskinen ◽  
Emilia K. J. Kilpua
Keyword(s):  
Radiation Belt ◽  
Low Frequency ◽  
Plasma Waves ◽  
Mhd Waves ◽  
Particle Interactions ◽  
Inner Magnetosphere ◽  
Very Low Frequency ◽  
Link Type ◽  
Wave Modes

AbstractUnderstanding the role of plasma waves, extending from magnetohydrodynamic (MHD) waves at ultra-low-frequency (ULF) oscillations in the millihertz range to very-low-frequency (VLF) whistler-mode emissions at frequencies of a few kHz, is necessary in studies of sources and losses of radiation belt particles. In order to make this theoretically heavy part of the book accessible to a reader, who is not familiar with wave–particle interactions, we have divided the treatise into three chapters. In the present chapter we introduce the most important wave modes that are critical to the dynamics of radiation belts. The drivers of these waves are discussed in Chap. 10.1007/978-3-030-82167-8_5 and the roles of the wave modes as sources and losses of radiation belt particles are dealt with in Chap. 10.1007/978-3-030-82167-8_6.

Sign in / Sign up

Export Citation Format

Share Document