HF Radio Wave Absorption in the Nighttime : Part III. Ray Paths and Absorption of MF and HF Radio Waves Incident at the Nighttime Ionosphere (Reports of the Japanese Antarctic Research Expedition)

Computations of the ray path and absorption of radio waves by means of the ray-tracing technique are applied to the oblique propagation of MF and HF waves passing through model ionospheres in the nighttime under different conditions. The field intensity deduced from those computed results is discuss...

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Bibliographic Details
Main Author: Noboru WAKAI
Format: Article in Journal/Newspaper
Language:English
Japanese
Published: National Institute of Polar Research 1971
Subjects:
Geography (General)
G1-922
Antarctic
Antarc*
Online Access:https://doi.org/10.15094/00007625
https://doaj.org/article/7620dc010bd847c2ae9020f62e56155b
id ftdoajarticles:oai:doaj.org/article:7620dc010bd847c2ae9020f62e56155b
record_format openpolar
spelling ftdoajarticles:oai:doaj.org/article:7620dc010bd847c2ae9020f62e56155b 2023-05-15T13:54:13+02:00 HF Radio Wave Absorption in the Nighttime : Part III. Ray Paths and Absorption of MF and HF Radio Waves Incident at the Nighttime Ionosphere (Reports of the Japanese Antarctic Research Expedition) Noboru WAKAI 1971-07-01T00:00:00Z https://doi.org/10.15094/00007625 https://doaj.org/article/7620dc010bd847c2ae9020f62e56155b EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00007625 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007625 0085-7289 2432-079X https://doaj.org/article/7620dc010bd847c2ae9020f62e56155b Antarctic Record, Iss 41, Pp 9-23 (1971) Geography (General) G1-922 article 1971 ftdoajarticles https://doi.org/10.15094/00007625 2022-12-31T14:16:11Z Computations of the ray path and absorption of radio waves by means of the ray-tracing technique are applied to the oblique propagation of MF and HF waves passing through model ionospheres in the nighttime under different conditions. The field intensity deduced from those computed results is discussed in comparison with that measured on board the ship of the Japanese Antarctic Research Expeditions as already reported in Parts I and II of this paper. It is confirmed quantitatively to a certain degree that the ionization in the nighttime E region is responsible for the absorption of MF and lower HF waves. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
Japanese
topic Geography (General)
G1-922
spellingShingle Geography (General)
G1-922
Noboru WAKAI
HF Radio Wave Absorption in the Nighttime : Part III. Ray Paths and Absorption of MF and HF Radio Waves Incident at the Nighttime Ionosphere (Reports of the Japanese Antarctic Research Expedition)
topic_facet Geography (General)
G1-922
description Computations of the ray path and absorption of radio waves by means of the ray-tracing technique are applied to the oblique propagation of MF and HF waves passing through model ionospheres in the nighttime under different conditions. The field intensity deduced from those computed results is discussed in comparison with that measured on board the ship of the Japanese Antarctic Research Expeditions as already reported in Parts I and II of this paper. It is confirmed quantitatively to a certain degree that the ionization in the nighttime E region is responsible for the absorption of MF and lower HF waves.
format Article in Journal/Newspaper
author Noboru WAKAI
author_facet Noboru WAKAI
author_sort Noboru WAKAI
title HF Radio Wave Absorption in the Nighttime : Part III. Ray Paths and Absorption of MF and HF Radio Waves Incident at the Nighttime Ionosphere (Reports of the Japanese Antarctic Research Expedition)
title_short HF Radio Wave Absorption in the Nighttime : Part III. Ray Paths and Absorption of MF and HF Radio Waves Incident at the Nighttime Ionosphere (Reports of the Japanese Antarctic Research Expedition)
title_full HF Radio Wave Absorption in the Nighttime : Part III. Ray Paths and Absorption of MF and HF Radio Waves Incident at the Nighttime Ionosphere (Reports of the Japanese Antarctic Research Expedition)
title_fullStr HF Radio Wave Absorption in the Nighttime : Part III. Ray Paths and Absorption of MF and HF Radio Waves Incident at the Nighttime Ionosphere (Reports of the Japanese Antarctic Research Expedition)
title_full_unstemmed HF Radio Wave Absorption in the Nighttime : Part III. Ray Paths and Absorption of MF and HF Radio Waves Incident at the Nighttime Ionosphere (Reports of the Japanese Antarctic Research Expedition)
title_sort hf radio wave absorption in the nighttime : part iii. ray paths and absorption of mf and hf radio waves incident at the nighttime ionosphere (reports of the japanese antarctic research expedition)
publisher National Institute of Polar Research
publishDate 1971
url https://doi.org/10.15094/00007625
https://doaj.org/article/7620dc010bd847c2ae9020f62e56155b
geographic Antarctic
geographic_facet Antarctic
genre Antarc*
Antarctic
genre_facet Antarc*
Antarctic
op_source Antarctic Record, Iss 41, Pp 9-23 (1971)
op_relation https://doi.org/10.15094/00007625
https://doaj.org/toc/0085-7289
https://doaj.org/toc/2432-079X
doi:10.15094/00007625
0085-7289
2432-079X
https://doaj.org/article/7620dc010bd847c2ae9020f62e56155b
op_doi https://doi.org/10.15094/00007625
_version_ 1766259902922096640

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