HF radio wave absorption in the nighttime. Part I. Measurements of the field intensity of HF radio waves on board the ship for the 2nd(1958)-8th(1966) Japanese Antarctic Research Expedition
Observations of the nighttime ionospheric absorption have been carried out since 1958 on board the ship for the Japanese antarctic research. Field intensities of the HF standard frequency signals at different frequencies were measured during hours around midnight. In this paper, techniques of the me...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
National Institute of Polar Research
1971-01-01
|
Series: | Antarctic Record |
Online Access: | https://doi.org/10.15094/00007597 |