HF RADIO MEASUREMENTS OF THE HIGH-ALTITUDE ACOUSTIC EFFECTS OF A GROUND- LEVEL EXPLOSION
Abstract
An hf radio experiment was performed to measure the high-altitude effect of the vertically traveling pressure wave resulting from a large ground- level explosion. The blast--Project Snowball--consisted of 500 tons of TNT and was detonated at the Suffield Experimental Station, Alberta, Canada, July, 1964. The ionospheric disturbance was monitored using vertical-incidence, phase- sensitive sounders located 85 km from ground zero. Simple, linear, acoustic theory was used to calculate the onset time, amplitude, and period of the radio- signal disturbance. These calculations agree closely with measurements taken by the vertical-incidence sounders--onset time was predicted within 10 sec, and both amplitude and period agreed within a factor of two.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1965
- Accession Number
- AD0467419
Entities
People
- G. H. Barry
- J. C. Taenzer
- L. J. Griffiths
Organizations
- Stanford University