Accession Number : AD0853981

Title :   Nighttime Ionospheric Profile Matching for 1030 UT, 1 August 1967,

Corporate Author : NAVAL WEAPONS CENTER CORONA LABS CA

Personal Author(s) : Morfitt, D. G. ; Hildebrand, V. E.

Report Date : MAY 1969

Pagination or Media Count : 53

Abstract : Electric field strength levels have been recorded by a VLF multiple-frequency oblique-incidence ionospheric sounder over a nighttime propagation path from Hawaii to Southern California. The field strength values recorded at 1030 UT on 1 August 1967 are compared with predicted fields obtained from a mathematical propagation model using various electron density profiles representative of the lowest region of the nighttime ionosphere. A 'best fit' profile to the sounder data at this time is determined. (Author)

Descriptors :   (*RADIO TRANSMISSION, IONOSPHERIC PROPAGATION), (*IONOSPHERE, ELECTRON DENSITY), DIURNAL VARIATIONS, ELECTRIC FIELDS, MULTIPLE OPERATION, VERY LOW FREQUENCY, MATHEMATICAL MODELS, REFLECTION, DISTRIBUTION, COMPUTERS.

Subject Categories : Atmospheric Physics
      Plasma Physics and Magnetohydrodynamics
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE