Medium-Latitude VLF/ELF Emissions as Deduced from the Multi-Stationed Direction Finding Measurements
Some early results are presented on medium-latitude VLF/ELF emissions observed by the simultaneous measurements at the two stations in Europe during November 1978 through January 1979. The main aim of the present research is the adoption of two different kinds of direction finding systems; (i) a fie...
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ftnipr:oai:nipr.repo.nii.ac.jp:00001119 2023-05-15T17:10:58+02:00 Medium-Latitude VLF/ELF Emissions as Deduced from the Multi-Stationed Direction Finding Measurements Masashi Hayakawa Yoshihito Tanaka Akira Iwai Jinsuke Ohtsu Mizuo Kashiwagi Toshimi Okada 1981-03 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1119 http://id.nii.ac.jp/1291/00001119/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1119&item_no=1&attribute_id=18&file_no=1 en eng Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1119 http://id.nii.ac.jp/1291/00001119/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 18, 23-39(1981-03) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1119&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1981 ftnipr 2022-11-12T19:42:00Z Some early results are presented on medium-latitude VLF/ELF emissions observed by the simultaneous measurements at the two stations in Europe during November 1978 through January 1979. The main aim of the present research is the adoption of two different kinds of direction finding systems; (i) a field-analysis direction finding, and (ii) a goniometer network, which has enabled us to locate the ionospheric exit points of different kinds of VLF/ELF emissions over a wide range in L values. The VLF/ELF emissions observed are found to be classified into four major categories; (1) plasmapause-associated VLF emissions, (2) VLF hiss in the electron slot region, (3) periodic hiss emissions, and (4) periodic VLF emissions triggered by the hiss band. The characteristics of one example from each category are described, and the mechanisms of their generation and propagation will be studied in the future. Report Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Some early results are presented on medium-latitude VLF/ELF emissions observed by the simultaneous measurements at the two stations in Europe during November 1978 through January 1979. The main aim of the present research is the adoption of two different kinds of direction finding systems; (i) a field-analysis direction finding, and (ii) a goniometer network, which has enabled us to locate the ionospheric exit points of different kinds of VLF/ELF emissions over a wide range in L values. The VLF/ELF emissions observed are found to be classified into four major categories; (1) plasmapause-associated VLF emissions, (2) VLF hiss in the electron slot region, (3) periodic hiss emissions, and (4) periodic VLF emissions triggered by the hiss band. The characteristics of one example from each category are described, and the mechanisms of their generation and propagation will be studied in the future. |
format |
Report |
author |
Masashi Hayakawa Yoshihito Tanaka Akira Iwai Jinsuke Ohtsu Mizuo Kashiwagi Toshimi Okada |
spellingShingle |
Masashi Hayakawa Yoshihito Tanaka Akira Iwai Jinsuke Ohtsu Mizuo Kashiwagi Toshimi Okada Medium-Latitude VLF/ELF Emissions as Deduced from the Multi-Stationed Direction Finding Measurements |
author_facet |
Masashi Hayakawa Yoshihito Tanaka Akira Iwai Jinsuke Ohtsu Mizuo Kashiwagi Toshimi Okada |
author_sort |
Masashi Hayakawa |
title |
Medium-Latitude VLF/ELF Emissions as Deduced from the Multi-Stationed Direction Finding Measurements |
title_short |
Medium-Latitude VLF/ELF Emissions as Deduced from the Multi-Stationed Direction Finding Measurements |
title_full |
Medium-Latitude VLF/ELF Emissions as Deduced from the Multi-Stationed Direction Finding Measurements |
title_fullStr |
Medium-Latitude VLF/ELF Emissions as Deduced from the Multi-Stationed Direction Finding Measurements |
title_full_unstemmed |
Medium-Latitude VLF/ELF Emissions as Deduced from the Multi-Stationed Direction Finding Measurements |
title_sort |
medium-latitude vlf/elf emissions as deduced from the multi-stationed direction finding measurements |
publisher |
Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University/Research Institute of Atmospherics, Nagaya University |
publishDate |
1981 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1119 http://id.nii.ac.jp/1291/00001119/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1119&item_no=1&attribute_id=18&file_no=1 |
genre |
Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Memoirs of National Institute of Polar Research Polar Research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1119 http://id.nii.ac.jp/1291/00001119/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 18, 23-39(1981-03) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1119&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766067732408696832 |