Journal ArticleDOI
D-region electron density evaluated from VLF amplitude time delay during X-ray solar flares
TLDR
In this article, the authors used the continuity equation for the electron component and the amplitude time delay to estimate the effective recombination coefficient for the D-region during solar flares, which was found to be in good agreement with measurements by different techniques, as well as with the independent estimates of β and H ′.About:
This article is published in Journal of Atmospheric and Solar-Terrestrial Physics.The article was published on 2007-05-01. It has received 92 citations till now. The article focuses on the topics: Solar flare & Amplitude.read more
Citations
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Journal ArticleDOI
Classification of X-ray solar flares regarding their effects on the lower ionosphere electron density profile
TL;DR: In this paper, the effects of X-ray solar flares on very low frequency (VLF) wave propagation along the Earth-ionosphere waveguide are detected from an observed VLF signal phase and amplitude perturbations, taking place during X-Ray solar flares.
Journal ArticleDOI
Effective recombination coefficient and solar zenith angle effects on low-latitude D-region ionosphere evaluated from VLF signal amplitude and its time delay during X-ray solar flares
TL;DR: In this article, the effect of solar X-ray radiation on the ionospheric D-region was investigated and the effective electron recombination coefficient (αeff) at solar flare peak region was calculated.
Journal ArticleDOI
Solar flare detection sensitivity using the South America VLF Network (SAVNET)
Jean-Pierre Raulin,Fernando C. P. Bertoni,Hernan R. Gavilán,Walter Guevara-Day,Rodolfo Rodriguez,G. Fernandez,Emilia Correia,Emilia Correia,Pierre Kaufmann,Pierre Kaufmann,Alessandra Abe Pacini,Tardelli Ronan Coelho Stekel,W. L. C. Lima,Nelson Jorge Schuch,Paulo Roberto Fagundes,Rubens Hadano +15 more
TL;DR: In this paper, the authors used the South America VLF Network (SAVNET) to study 471 ionospheric events produced by solar X-ray flares during the period May 2006 to July 2009 which corresponds to the present minimum of solar activity.
Journal ArticleDOI
Modeling of sub-ionospheric VLF signal perturbations associated with total solar eclipse, 2009 in Indian subcontinent
TL;DR: In this paper, a week-long campaign was conducted in the Indian sub-continent to study the low-latitude D-region ionosphere using the very low frequency (VLF) signal from the Indian Navy transmitter (call sign: VTX3) operating at 18.2 kHz.
Journal ArticleDOI
On the Use of VLF Narrowband Measurements to Study the Lower Ionosphere and the Mesosphere–Lower Thermosphere
TL;DR: In this paper, a review of the use of very low frequency (VLF, 3-30 kHz) signals generated by various natural and man-made sources for the study of the ionospheric D-region and the mesosphere-lower thermosphere is presented.
References
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Book
Electromagnetic Waves in Stratified Media
TL;DR: In this article, the authors provide the theoretical basis for a variety of applications of electromagnetic (radio) waves to communications, navigation, and remote sensing, and this book is based on fundamental research in electromagnetic wave propagation that James R. Wait performed in the Central Radio Propagation Laboratory (CRPL) of NBS from 1956 to 1962.
Book
Introduction to ionospheric physics
Henry Rishbeth,Owen K. Garriott +1 more
TL;DR: In this article, a book on ionospheric physics covering neutral atmosphere and photochemical processes, morphology, phenomena, geomagnetism, storms and geomagnetic storms is presented.
Related Papers (5)
Solar flare induced ionospheric D-region enhancements from VLF phase and amplitude observations
Wayne McRae,Neil R. Thomson +1 more