Vertical Distribution of a Demodulated Low-Frequency Field in the Disturbed Low-Latitude Ionosphere

2018 ◽  
Vol 63 (2) ◽  
pp. 118-122 ◽  
Author(s):  
A. V. Moshkov ◽  
V. N. Pozhidaev
Keyword(s):  
Vertical Distribution ◽  
Low Frequency ◽  
Low Latitude ◽  
Frequency Field ◽  
Low Latitude Ionosphere

VLF/LF (Very Low Frequency/Low Frequency) Reflection Properties of the Low Latitude Ionosphere

1988 ◽  
Author(s):  
Wayne I. Klemetti ◽  
Paul A. Kossey ◽  
John E. Rasmussen ◽  
Maria Sueli Da Silveira Macedo Moura
Keyword(s):  
Low Frequency ◽  
Low Latitude ◽  
Very Low Frequency ◽  
Low Latitude Ionosphere

scholarly journals Study of oblique whistlers in the low-latitude ionosphere, jointly with the C/NOFS satellite and the World-Wide Lightning Location Network

2011 ◽  
Vol 29 (5) ◽  
pp. 851-863 ◽  
Author(s):  
A. R. Jacobson ◽  
R. H. Holzworth ◽  
R. F. Pfaff ◽  
M. P. McCarthy
Keyword(s):  
World Wide ◽  
Low Frequency ◽  
Great Majority ◽  
Detection Algorithm ◽  
Low Latitude ◽  
Automated Algorithm ◽  
The World ◽  
Low Latitude Ionosphere ◽  
Relationship Of ◽  
Vlf Waves

Abstract. We use the C/NOFS satellite's Vector Electric Field Instrument (VEFI) to study the relationship of impulsive electron whistlers in the low-latitude ionosphere to lightning strokes located by the World-Wide Lightning Location Network (WWLLN). In order to systematize this work, we develop an automated algorithm for recognizing and selecting the signatures of electron whistlers amongst many Very Low Frequency (VLF) recordings provided by VEFI. We demonstrate the application of this whistler-detection algorithm to data mining of a ~ two-year archive of VEFI recordings. It is shown that the relatively simple oblique electron whistler adequately accounts of the great majority of low-latitude oscillatory VLF waves seen in this study.

Polarization pattern of low-frequency geomagnetic field fluctuations (0.8-3.6 mHz) at high and low latitude

1999 ◽  
Vol 104 (A1) ◽  
pp. 305-310 ◽  
Author(s):  
S. Lepidi ◽  
P. Francia ◽  
U. Villante ◽  
L. J. Lanzerotti ◽  
A. Meloni
Keyword(s):  
Geomagnetic Field ◽  
Low Frequency ◽  
Polarization Pattern ◽  
Low Latitude ◽  
Field Fluctuations

scholarly journals Remote auroral activity detection and modeling using low frequency transmitter signal reception at a midlatitude site

2010 ◽  
Vol 28 (9) ◽  
pp. 1807-1811 ◽  
Author(s):  
E. D. Schmitter
Keyword(s):  
Power Systems ◽  
Low Frequency ◽  
Solar Energetic Particle ◽  
Auroral Oval ◽  
Activity Level ◽  
Propagation Model ◽  
Low Latitude ◽  
Activity Data ◽  
Auroral Activity ◽  
Local Intensity

Abstract. The low frequency propagation conditions along the path from Iceland to Germany (52° N 8° E) using the NRK/TFK 37.5 kHz transmitter (63.9° N 22.5° W) prove as an easy to monitor and reliable proxy for north auroral activity. Signal processing using wavelet decomposition allows for quantitative activity level estimations. Calibration is based upon NOAA POES auroral activity data. Using an auroral oval model for the local intensity distribution of solar energetic particle precipitation and a wave propagation model ionospheric D-layer height decreases along the path can be derived. This in turn gives a hint to the low latitude extension and intensity of the auroral electrojet currents that can be responsible for communication and power systems failures.

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