Some variations in VLF diurnal shift
Abstract
VLF diurnal shifts of differing magnitude have been observed at the same frequency over paired propagation paths of nearly equal length. Computed diurnal shifts demonstrate that a small variation in modal interference spacing with path azimuth may explain these results.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- March 1977
- Bibcode:
- 1977STIN...7813301L
- Keywords:
-
- Electromagnetic Radiation;
- Very Low Frequencies;
- Diurnal Variations;
- Phase Shift;
- Radio Communication;
- Communications and Radar