Accession Number : AD0329405

Title :   Very Low Frequency Propagation Research.

Descriptive Note : Final rept.

Corporate Author : SYLVANIA ELECTRIC PRODUCTS INC WALTHAM MA

Report Date : MAR 1962

Pagination or Media Count : 1

Abstract : Contents: Exponential conductivity model ionosphere for terrestrial extremely low frequency propagation Effect of gyro-resonance of D-region ions Frequency spectrum of earth-ionosphere cavity response to electrical storms Perturbation of Schumann resonances by a low conductivity sharply bounded ionosphere Perturbation of Schumann resonances by a small hemispherical step in effective reflecting height of the ionosphere Effect of induced polarization in the ground on waveguide mode constants Complete theory of the terrestrial extremely low frequency noise spectrum Extremely low frequency noise spectrum in the presence of exponential ionospheric conductiv ity profiles Extremely low frequency antennas Conductivity depth profiles in the sea Effect of sea surface motion on sub-surface fields (Confidential Contents Note)

Descriptors :   *ATMOSPHERE MODELS, *EARTH MODELS, *ELECTROMAGNETIC RADIATION, *IONOSPHERE, *IONOSPHERIC PROPAGATION, *SEA WATER, ATTENUATION, AUDIO FREQUENCY, DIELECTRICS, ELECTRICAL CONDUCTIVITY, EXTREMELY LOW FREQUENCY, IONOSPHERIC DISTURBANCES, PROPAGATION, SLOT ANTENNAS, VERY LOW FREQUENCY.

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE