Ionospheric Morphology - Phase II.
Abstract
Phase II of an ionospheric morphology study provides further material leading to an improvement of HF prediction techniques. To simulate ionospheric conditions a numerical solution of the continuity equation for dN/dt=0 is obtained which gives reliable electron density cross-section between the equator and 60 degrees geomagnetic latitude. The variation of electron density during 7 disturbed time periods is investigated along the 75 degrees W. At night the peak of the F2 layer is higher by 50 to 100 km during the disturbed periods in comparison to quiet periods, but during the day it is more in the 25 to 50 km range or sometimes even smaller. The maximum electron density variations undergo seasonal and diurnal changes. Ray tracing through disturbed ionosphere shows the importance of changes in height and electron density on range and take-off angle. Changes in electron density during sunrise periods are regular on quiet days, but difficult to generalize for disturbed conditions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1969
- Accession Number
- AD0864893
Entities
People
- A. H. Katz
- R. Penndorf