Accession Number:

ADA043501

Title:

VLF/LF Propagation Beneath Irregularly Perturbed Ionospheres.

Descriptive Note:

Final rept. 29 Mar 76-30 Nov 76,

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s):

• Price,Gary H.
• Hatfield,V. Elaine

Report Date:

1977-01-01

Pagination or Media Count:

43.0

Abstract:

The disturbance to very-low-frequency and low-frequency propagation produced by numbers of large-yield, low-altitude nuclear detonations is considered. The consequent lower-ionospheric irregularity both reduces the coherent reflection and produces an incoherently scattered component of the signal. These effects are found to be appreciable at detonation densities in the range of those considered in conjunction with large-scale attack scenarios. Author

Descriptors:

• *NUCLEAR EXPLOSIONS
• *ELECTROMAGNETIC WAVE PROPAGATION
• *NUCLEAR EXPLOSION DAMAGE
• *ATMOSPHERIC PHYSICS
• *IONOSPHERIC DISTURBANCES
• ELECTROMAGNETIC SCATTERING
• COHERENT RADIATION
• COMMAND AND CONTROL SYSTEMS
• HIGH ALTITUDE
• STATISTICAL ANALYSIS
• INCOHERENT SCATTERING
• LOW FREQUENCY
• LOW ALTITUDE
• VERY LOW FREQUENCY
• GLOBAL COMMUNICATIONS

Subject Categories:

• Atmospheric Physics
• Electricity and Magnetism
• Radiofrequency Wave Propagation
• Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE