DocumentCode
1186828
Title
Characteristics of the Ionosphere at Washington, D.C., May, 1939
Author
Gilliland, T.R. ; Kirby, S.S. ; Smith, N.
Author_Institution
National Bureau of Standards, Washington, D.C.
Volume
27
Issue
7
fYear
1939
fDate
7/1/1939 12:00:00 AM
Firstpage
472
Lastpage
473
Abstract
Data on the ordinary-wave critical frequencies and virtual heights of the ionospheric layers are presented for the period indicated in the title. The monthly average values of the maximum usable frequencies for undisturbed days, for radio transmission by way of the regular layers is also provided.
Keywords
Absorption; Associate members; Frequency; Hafnium; Ionosphere; NIST; Observatories; Reflection; Storms; US Department of Commerce;
fLanguage
English
Journal_Title
Proceedings of the IRE
Publisher
ieee
ISSN
0096-8390
Type
jour
DOI
10.1109/JRPROC.1939.228567
Filename
1686951
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