OBLIQUE INCIDENCE IONOSPHERIC INVESTIGATIONS.
Abstract
Oblique incidence ionospheric soundings originated at Puerto Rico have been recorded at Maynard, Mass. The course of the MOF is close to the F2JF (predicted o-ray JF), especially in winter months. In summer months agreement is good if care is taken to segregate E sub s- and E-layer effects. Differential amplitude measurements made of F2 upper and lower rays near JF for selected days in a quiet month were compared with computed relative amplitudes in attempt to set limits on collisional absorption. Although assumed extrapolated mid-path profiles had many similarities, observed amplitudes do not generally follow predicted trend from models owing to incomplete description of the focusing, especially near JF. A crude upper limit on the peak F2 layer collisional frequency is 2000/sec. Values much lower are plausible at any one time as reference to recent aeronomix electron temperature determinations suggests. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1967
- Accession Number
- AD0651420
Entities
People
- David F Davidson
Organizations
- Westinghouse Electric Corporation