• DocumentCode
    1185897
  • Title

    Characteristics of the Ionosphere at Washington, D.C., December, 1938

  • Author

    Gilliland, T.R. ; Kirby, S.S. ; Smith, N.

  • Author_Institution
    National Bureau of Standards, Washington, D.C.
  • Volume
    27
  • Issue
    2
  • fYear
    1939
  • Firstpage
    151
  • Lastpage
    152
  • 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
    Associate members; Frequency; Ionosphere; NIST; Observatories; Radio transmitters; 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.1939.228066
  • Filename
    1686847
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1185897