CNA quiet day curves and their sidereal time dependence
This paper presents a method of obtaining a riometer quiet day curve (QDC) of the correct shape, after modifying the technique of inflection point method proposed by R.J. ARMSTRONG et al. (Planet. Space Sci., 25,1193,1977) with Fourier analysis using computer assisted programing of the data. This me...
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Faculty of Education, Hirosaki University/National Institute of Polar Research
1991
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ftnipr:oai:nipr.repo.nii.ac.jp:00004103 2023-05-15T16:48:07+02:00 CNA quiet day curves and their sidereal time dependence Takashi Araki Natsuo Sato 1991-06 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=4103 http://id.nii.ac.jp/1291/00004103/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=4103&item_no=1&attribute_id=18&file_no=1 en eng Faculty of Education, Hirosaki University/National Institute of Polar Research National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=4103 http://id.nii.ac.jp/1291/00004103/ AA10756224 Proceedings of the NIPR Symposium on Upper Atmosphere Physics, 4, 62-69(1991-06) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=4103&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1991 ftnipr 2023-01-14T19:56:31Z This paper presents a method of obtaining a riometer quiet day curve (QDC) of the correct shape, after modifying the technique of inflection point method proposed by R.J. ARMSTRONG et al. (Planet. Space Sci., 25,1193,1977) with Fourier analysis using computer assisted programing of the data. This method was applied to 30MHz riometer data observed at Tjornes (from 8 September 1984 to 30 September 1986) and Husafell (from 15 August 1985 to 31 August 1986) in Iceland. The QDCs are usefull in studying the diurnal, seasonal and solar cycle variations of average ionospheric absorption level. Report Iceland National Institute of Polar Research Repository, Japan Husafell ENVELOPE(-20.893,-20.893,64.700,64.700) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
This paper presents a method of obtaining a riometer quiet day curve (QDC) of the correct shape, after modifying the technique of inflection point method proposed by R.J. ARMSTRONG et al. (Planet. Space Sci., 25,1193,1977) with Fourier analysis using computer assisted programing of the data. This method was applied to 30MHz riometer data observed at Tjornes (from 8 September 1984 to 30 September 1986) and Husafell (from 15 August 1985 to 31 August 1986) in Iceland. The QDCs are usefull in studying the diurnal, seasonal and solar cycle variations of average ionospheric absorption level. |
format |
Report |
author |
Takashi Araki Natsuo Sato |
spellingShingle |
Takashi Araki Natsuo Sato CNA quiet day curves and their sidereal time dependence |
author_facet |
Takashi Araki Natsuo Sato |
author_sort |
Takashi Araki |
title |
CNA quiet day curves and their sidereal time dependence |
title_short |
CNA quiet day curves and their sidereal time dependence |
title_full |
CNA quiet day curves and their sidereal time dependence |
title_fullStr |
CNA quiet day curves and their sidereal time dependence |
title_full_unstemmed |
CNA quiet day curves and their sidereal time dependence |
title_sort |
cna quiet day curves and their sidereal time dependence |
publisher |
Faculty of Education, Hirosaki University/National Institute of Polar Research |
publishDate |
1991 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=4103 http://id.nii.ac.jp/1291/00004103/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=4103&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(-20.893,-20.893,64.700,64.700) |
geographic |
Husafell |
geographic_facet |
Husafell |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=4103 http://id.nii.ac.jp/1291/00004103/ AA10756224 Proceedings of the NIPR Symposium on Upper Atmosphere Physics, 4, 62-69(1991-06) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=4103&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766038231736909824 |