Propagation Of Elf And Vlf Waves Near The Earth PDF Download
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Author | : I︠A︡kov Lʹvovich Alʹpert |
Publisher | : Springer |
Total Pages | : 192 |
Release | : 1970 |
Genre | : Science |
ISBN | : |
Download Propagation of ELF and VLF Waves Near the Earth Book in PDF, ePub and Kindle
Author | : James R. Wait |
Publisher | : |
Total Pages | : 52 |
Release | : 1960 |
Genre | : Radio wave propagation |
ISBN | : |
Download A Survey and Bibliography of Recent Research in the Propagation of VLF Radio Waves Book in PDF, ePub and Kindle
Author | : Y. L. Al pert |
Publisher | : Springer |
Total Pages | : 0 |
Release | : 1995-12-15 |
Genre | : Science |
ISBN | : 9781489948397 |
Download Propagation of ELF and VLF Waves Near the Earth Book in PDF, ePub and Kindle
Author | : Yakov L'ovic̆ Al'pert |
Publisher | : |
Total Pages | : 171 |
Release | : 1970 |
Genre | : |
ISBN | : |
Download Propagation of ELF and VLF Waves Near the Earth Book in PDF, ePub and Kindle
Author | : James R. Wait |
Publisher | : |
Total Pages | : 40 |
Release | : 1968 |
Genre | : Ionospheric radio wave propagation |
ISBN | : |
Download VLF Mode Calculations for Propagation Across a Land/sea Boundary in the Earth-ionosphere Waveguide Book in PDF, ePub and Kindle
Author | : Kenneth P. Spies |
Publisher | : |
Total Pages | : 162 |
Release | : 1961 |
Genre | : Ionospheric radio wave propagation |
ISBN | : |
Download Mode Calculations for VLF Propagation in the Earth-ionosphere Waveguide Book in PDF, ePub and Kindle
Author | : James R. Wait |
Publisher | : |
Total Pages | : 104 |
Release | : 1964 |
Genre | : Ionospheric radio wave propagation |
ISBN | : |
Download Characteristics of the Earth-ionosphere Waveguide for VLF Radio Waves Book in PDF, ePub and Kindle
The principal results of this technical note are graphical presentations of the attenuation rates, phase velocities, and excitation factors for the dominant modes in the earth-ionosphere waveguide.The frequency range considered is 8 kc/s to 30 kc/s. *The model adopted for the ionosphere has an exponential variation for both the electron density and the collision frequency, and the effect of the earth's magnetic field is considered.Comparison with published experimental data confirms that the minimum attenuation of VLF radio waves in daytime is approximtely at 18 kc/s, while at night it is somewhat lower.The directional dependences of propagation predicted by the theory are also confirmed by experimental data.(Author).
Author | : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. Electromagnetic Wave Propagation Panel. Symposium |
Publisher | : |
Total Pages | : 364 |
Release | : 1993 |
Genre | : Aeronautics |
ISBN | : |
Download ELF/VLF/LF Radio Propagation and Systems Aspects Book in PDF, ePub and Kindle
Author | : E. C. Field |
Publisher | : |
Total Pages | : 22 |
Release | : 1969 |
Genre | : Ionospheric radio wave propagation |
ISBN | : |
Download VLF and ELF Propagation During Sudden Ionospheric Disturbances Book in PDF, ePub and Kindle
The study presents the results of a theoretical analysis of the propagation of electromagnetic waves in the very-low-frequency (VLF) and extremely-low-frequency (ELF) ranges in the earth-ionosphere cavity during solar flares. The calculations, which are based upon nominal models of ambient conditions and solar-flare x-ray fluxes and spectra, result in mode-attenuation coefficients which are in good general agreement with observations. The propagation is enhanced relative to ambient conditions at ELF and upper VLF frequencies but is degraded in the lower VLF range. This general behavior is quite insensitive to the details of the assumed x-ray spectrum, the main requirement being a sufficient concentration of x-ray energy in the 1 - 8 A wavelength band. This class of spectrum tends to cause a moderate lowering of the D-region accompanied by an increase in the height gradient of conductivity in the reflection region; this in turn causes the observed phenomena at ELF and VLF during sudden ionospheric disturbances. (Author).
Author | : A. R. W. Hughes |
Publisher | : Alpha Science Int'l Ltd. |
Total Pages | : 390 |
Release | : 2003 |
Genre | : Science |
ISBN | : 9788173194856 |
Download Very Low Frequency (VLF) Phenomena Book in PDF, ePub and Kindle
Contributed articles presented at the Workshop.