Accession Number:
AD0706635
Title:
D-REGION AERONOMICAL CHANGES DEDUCED FROM STEEP INCIDENCE SUNRISE VLF PROPAGATION DATA,
Descriptive Note:
Corporate Author:
LOWELL TECHNOLOGICAL INST RESEARCH FOUNDATION MASS
Personal Author(s):
Report Date:
1970-01-01
Pagination or Media Count:
12.0
Abstract:
Some 12 months of near vertical incidence, mid-latitude VLF data, spanning the period April 1965 through June 1966, have been reduced and analyzed. Analysis of seasonal variations in sky wave amplitude prior to ground sunrise is presented here. These amplitude changes are accounted for in terms of D-region aeronomy variations. It is shown that early morning changes in Lyman-alpha radiation, nitric oxide and atomic oxygen can explain these preground sunrise amplitude effects. Author
Descriptors:
Subject Categories:
- Atmospheric Physics
- Radiofrequency Wave Propagation