Conjugacy of ELF-VLF Emissions at Syowa Station and Husafell (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I)
Conjugate observations of ELF-VLF emissions, magnetic pulsations and auroras were carried out at Syowa Station in Antarctica and Husafell in Iceland from July 29, 1977 to September 18,1977. Husafell is located at a distance of about 50 km from the conjugate point of Syowa Station. Conjugacies of ELF...
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National Institute of Polar Research
1980
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ftdoajarticles:oai:doaj.org/article:3d0c63c97d3a4f76a4a7a5b0aa48dde2 2023-05-15T13:46:45+02:00 Conjugacy of ELF-VLF Emissions at Syowa Station and Husafell (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I) Natsuo SATO Masaru AYUKAWA Hiroshi FUKUNISHI 1980-02-01T00:00:00Z https://doi.org/10.15094/00008128 https://doaj.org/article/3d0c63c97d3a4f76a4a7a5b0aa48dde2 EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00008128 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008128 0085-7289 2432-079X https://doaj.org/article/3d0c63c97d3a4f76a4a7a5b0aa48dde2 Antarctic Record, Iss 68, Pp 181-202 (1980) Geography (General) G1-922 article 1980 ftdoajarticles https://doi.org/10.15094/00008128 2022-12-31T05:16:02Z Conjugate observations of ELF-VLF emissions, magnetic pulsations and auroras were carried out at Syowa Station in Antarctica and Husafell in Iceland from July 29, 1977 to September 18,1977. Husafell is located at a distance of about 50 km from the conjugate point of Syowa Station. Conjugacies of ELF-VLF emissions depend on emission types, such as polar chorus, quasiperiodic emissions, burst of discrete emissions and auroral hiss. Polar chorus and quasi-periodic emissions are observed simultaneously at the conjugate-pair stations. This suggests that the emissions are generated near the equatorial region in the outer magnetosphere and propagate to the both hemispheres along the field lines of force. Conjugacy of bursts of discrete emissions and auroral hiss is generally low. The emission intensity of auroral hiss is much stronger at Syowa Station (winter hemisphere) than at Husafell (summer hemisphere). Just the opposite tendency is observed for bursts of discrete emissions. The low conjugacy of these emissions may depend on the differences in geophysical conditions, such as the magnetic field, magnetic dip angle and the plasma density and also it depends on properties of the generation region of the emissions. Article in Journal/Newspaper Antarc* Antarctica Iceland Directory of Open Access Journals: DOAJ Articles Husafell ENVELOPE(-20.893,-20.893,64.700,64.700) Syowa Station |
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 Natsuo SATO Masaru AYUKAWA Hiroshi FUKUNISHI Conjugacy of ELF-VLF Emissions at Syowa Station and Husafell (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I) |
topic_facet |
Geography (General) G1-922 |
description |
Conjugate observations of ELF-VLF emissions, magnetic pulsations and auroras were carried out at Syowa Station in Antarctica and Husafell in Iceland from July 29, 1977 to September 18,1977. Husafell is located at a distance of about 50 km from the conjugate point of Syowa Station. Conjugacies of ELF-VLF emissions depend on emission types, such as polar chorus, quasiperiodic emissions, burst of discrete emissions and auroral hiss. Polar chorus and quasi-periodic emissions are observed simultaneously at the conjugate-pair stations. This suggests that the emissions are generated near the equatorial region in the outer magnetosphere and propagate to the both hemispheres along the field lines of force. Conjugacy of bursts of discrete emissions and auroral hiss is generally low. The emission intensity of auroral hiss is much stronger at Syowa Station (winter hemisphere) than at Husafell (summer hemisphere). Just the opposite tendency is observed for bursts of discrete emissions. The low conjugacy of these emissions may depend on the differences in geophysical conditions, such as the magnetic field, magnetic dip angle and the plasma density and also it depends on properties of the generation region of the emissions. |
format |
Article in Journal/Newspaper |
author |
Natsuo SATO Masaru AYUKAWA Hiroshi FUKUNISHI |
author_facet |
Natsuo SATO Masaru AYUKAWA Hiroshi FUKUNISHI |
author_sort |
Natsuo SATO |
title |
Conjugacy of ELF-VLF Emissions at Syowa Station and Husafell (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I) |
title_short |
Conjugacy of ELF-VLF Emissions at Syowa Station and Husafell (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I) |
title_full |
Conjugacy of ELF-VLF Emissions at Syowa Station and Husafell (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I) |
title_fullStr |
Conjugacy of ELF-VLF Emissions at Syowa Station and Husafell (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I) |
title_full_unstemmed |
Conjugacy of ELF-VLF Emissions at Syowa Station and Husafell (c. Wave-Particle Interactions in the Magnetosphere) (Proceedings of the Second Symposium on Coordinated Observations of the Ionosphere and Magnetosphere in the Polar Regions : Part I) |
title_sort |
conjugacy of elf-vlf emissions at syowa station and husafell (c. wave-particle interactions in the magnetosphere) (proceedings of the second symposium on coordinated observations of the ionosphere and magnetosphere in the polar regions : part i) |
publisher |
National Institute of Polar Research |
publishDate |
1980 |
url |
https://doi.org/10.15094/00008128 https://doaj.org/article/3d0c63c97d3a4f76a4a7a5b0aa48dde2 |
long_lat |
ENVELOPE(-20.893,-20.893,64.700,64.700) |
geographic |
Husafell Syowa Station |
geographic_facet |
Husafell Syowa Station |
genre |
Antarc* Antarctica Iceland |
genre_facet |
Antarc* Antarctica Iceland |
op_source |
Antarctic Record, Iss 68, Pp 181-202 (1980) |
op_relation |
https://doi.org/10.15094/00008128 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00008128 0085-7289 2432-079X https://doaj.org/article/3d0c63c97d3a4f76a4a7a5b0aa48dde2 |
op_doi |
https://doi.org/10.15094/00008128 |
_version_ |
1766245171440123904 |