Propagated EMP from Tangent and Buried Bursts.
Abstract
Calculations describing the ionospheric propagation of high-altitude electromagnetic pulses (EMP) to satellite altitudes are reported. Both tangent and buried burst scenarios are treated. The calculations are based on the AFWL CHEMP code for self-consistent calculations of radiated EMP, modified by the inclusion of a swarm treatment of secondary and ionospheric electrons. The region of applicability of this swarm treatment has been determined by a separate Monte Carlo calculation. By carrying the calculations all the way from the burst point through the E region, the authors are able to account fully for the D region heating, the increased absorption and cascading it produces, and the increased cutoff frequency which results. The code calculations are evaluated for sensitivity to the ambient ionospheres used. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1974
- Accession Number
- AD0783246
Entities
People
- Arthur E. Greene
- Gregory H. Canavan
- James E. Brau
- Leon A. Wittwer
Organizations
- Air Force Research Laboratory