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...

Full description

Bibliographic Details
Main Authors: Noboru WAKAI, Masami OSE, Kazuo TANOHATA
Format: Article
Language:English
Published: National Institute of Polar Research 1971-01-01
Series:Antarctic Record
Online Access:https://doi.org/10.15094/00007597