RAPID AURORAL PULSATIONS WITH FREQUENCIES OF 0.05-40Hz
An image intensifier-television system equipped with an auroral photometer has been installed at Syowa Station to observe the auroral rapid luminosity fluctuations. In addition to the large amplitude auroral fluctuations observed mainly at the time of onset of an auroral substorm, several different...
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National Institute of Polar Research
1980
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ftnipr:oai:nipr.repo.nii.ac.jp:00001070 2023-05-15T17:10:58+02:00 RAPID AURORAL PULSATIONS WITH FREQUENCIES OF 0.05-40Hz ヒラサワ タケオ Takeo HIRASAWA 1980-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1070 http://id.nii.ac.jp/1291/00001070/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1070&item_no=1&attribute_id=18&file_no=1 en eng National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1070 http://id.nii.ac.jp/1291/00001070/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 16, 17-24(1980-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1070&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1980 ftnipr 2022-11-12T19:41:54Z An image intensifier-television system equipped with an auroral photometer has been installed at Syowa Station to observe the auroral rapid luminosity fluctuations. In addition to the large amplitude auroral fluctuations observed mainly at the time of onset of an auroral substorm, several different spectral types of pulsating auroras are found in the active auroras in the frequency range from 0.05 to 40Hz, the principle dominant spectral frequencies being at about 0.08,1,10 and 25Hz. Study of the association between auroral luminosity and magnetic pulsations shows that correlations are good in case of 0.08Hz fluctuations, while poor in cases of the 1,10 and 25Hz rapid fluctuations. Report Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan Syowa Station |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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ftnipr |
language |
English |
description |
An image intensifier-television system equipped with an auroral photometer has been installed at Syowa Station to observe the auroral rapid luminosity fluctuations. In addition to the large amplitude auroral fluctuations observed mainly at the time of onset of an auroral substorm, several different spectral types of pulsating auroras are found in the active auroras in the frequency range from 0.05 to 40Hz, the principle dominant spectral frequencies being at about 0.08,1,10 and 25Hz. Study of the association between auroral luminosity and magnetic pulsations shows that correlations are good in case of 0.08Hz fluctuations, while poor in cases of the 1,10 and 25Hz rapid fluctuations. |
format |
Report |
author |
ヒラサワ タケオ Takeo HIRASAWA |
spellingShingle |
ヒラサワ タケオ Takeo HIRASAWA RAPID AURORAL PULSATIONS WITH FREQUENCIES OF 0.05-40Hz |
author_facet |
ヒラサワ タケオ Takeo HIRASAWA |
author_sort |
ヒラサワ タケオ |
title |
RAPID AURORAL PULSATIONS WITH FREQUENCIES OF 0.05-40Hz |
title_short |
RAPID AURORAL PULSATIONS WITH FREQUENCIES OF 0.05-40Hz |
title_full |
RAPID AURORAL PULSATIONS WITH FREQUENCIES OF 0.05-40Hz |
title_fullStr |
RAPID AURORAL PULSATIONS WITH FREQUENCIES OF 0.05-40Hz |
title_full_unstemmed |
RAPID AURORAL PULSATIONS WITH FREQUENCIES OF 0.05-40Hz |
title_sort |
rapid auroral pulsations with frequencies of 0.05-40hz |
publisher |
National Institute of Polar Research |
publishDate |
1980 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1070 http://id.nii.ac.jp/1291/00001070/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1070&item_no=1&attribute_id=18&file_no=1 |
geographic |
Syowa Station |
geographic_facet |
Syowa Station |
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=1070 http://id.nii.ac.jp/1291/00001070/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 16, 17-24(1980-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1070&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766067728598171648 |