Calibration of CRL all-sky imagers using an integrating sphere
As part of an international collaboration with the Geophysical Institute of the University of Alaska, we have developed two all-sky imagers (CRL-ASIs). A sensitivity calibration of the CRL-ASIs was performed using an integrating sphere belonging to the National Institute of Polar Research (NIPR). Th...
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Communications Research Laboratory/Communications Research Laboratory/National Institute of Polar Research/Communications Research Laboratory/Communications Research Laboratory/National Institute of Polar Research
2002
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ftnipr:oai:nipr.repo.nii.ac.jp:00006356 2023-05-15T17:14:18+02:00 Calibration of CRL all-sky imagers using an integrating sphere Masa-yuki Yamamoto Minoru Kubota Shu Takeshita Mamoru Ishii Yasuhiro Murayama Masaki Ejiri 2002-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6356 http://id.nii.ac.jp/1291/00006356/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6356&item_no=1&attribute_id=18&file_no=1 en eng Communications Research Laboratory/Communications Research Laboratory/National Institute of Polar Research/Communications Research Laboratory/Communications Research Laboratory/National Institute of Polar Research National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6356 http://id.nii.ac.jp/1291/00006356/ AA11397422 Advances in polar upper atmosphere research, 16, 173-180(2002-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6356&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 2002 ftnipr 2023-03-25T20:26:56Z As part of an international collaboration with the Geophysical Institute of the University of Alaska, we have developed two all-sky imagers (CRL-ASIs). A sensitivity calibration of the CRL-ASIs was performed using an integrating sphere belonging to the National Institute of Polar Research (NIPR). The two-dimensional sensitivities of the CRL-ASIs produced symmetrical distributions. Using this sensitivity data, we converted airglow/aurora images into two-dimensional distributions of absolute intensity. The sensitivity of the CRL-ASIs was measured for 13 wavelengths between 427.8 nm and 866.5 nm, and the relationship between the sensitivity and the wavelength was investigated for both imagers. The peak sensitivity occurred at about 550 nm. Report National Institute of Polar Research Advances in polar upper atmosphere research Alaska National Institute of Polar Research Repository, Japan |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
As part of an international collaboration with the Geophysical Institute of the University of Alaska, we have developed two all-sky imagers (CRL-ASIs). A sensitivity calibration of the CRL-ASIs was performed using an integrating sphere belonging to the National Institute of Polar Research (NIPR). The two-dimensional sensitivities of the CRL-ASIs produced symmetrical distributions. Using this sensitivity data, we converted airglow/aurora images into two-dimensional distributions of absolute intensity. The sensitivity of the CRL-ASIs was measured for 13 wavelengths between 427.8 nm and 866.5 nm, and the relationship between the sensitivity and the wavelength was investigated for both imagers. The peak sensitivity occurred at about 550 nm. |
format |
Report |
author |
Masa-yuki Yamamoto Minoru Kubota Shu Takeshita Mamoru Ishii Yasuhiro Murayama Masaki Ejiri |
spellingShingle |
Masa-yuki Yamamoto Minoru Kubota Shu Takeshita Mamoru Ishii Yasuhiro Murayama Masaki Ejiri Calibration of CRL all-sky imagers using an integrating sphere |
author_facet |
Masa-yuki Yamamoto Minoru Kubota Shu Takeshita Mamoru Ishii Yasuhiro Murayama Masaki Ejiri |
author_sort |
Masa-yuki Yamamoto |
title |
Calibration of CRL all-sky imagers using an integrating sphere |
title_short |
Calibration of CRL all-sky imagers using an integrating sphere |
title_full |
Calibration of CRL all-sky imagers using an integrating sphere |
title_fullStr |
Calibration of CRL all-sky imagers using an integrating sphere |
title_full_unstemmed |
Calibration of CRL all-sky imagers using an integrating sphere |
title_sort |
calibration of crl all-sky imagers using an integrating sphere |
publisher |
Communications Research Laboratory/Communications Research Laboratory/National Institute of Polar Research/Communications Research Laboratory/Communications Research Laboratory/National Institute of Polar Research |
publishDate |
2002 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6356 http://id.nii.ac.jp/1291/00006356/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6356&item_no=1&attribute_id=18&file_no=1 |
genre |
National Institute of Polar Research Advances in polar upper atmosphere research Alaska |
genre_facet |
National Institute of Polar Research Advances in polar upper atmosphere research Alaska |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=6356 http://id.nii.ac.jp/1291/00006356/ AA11397422 Advances in polar upper atmosphere research, 16, 173-180(2002-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=6356&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766071658662068224 |