DETERMINATION OF SEA ICE CONCENTRATION FROM AVHRR VISIBLE AND NEAR INFRARED IMAGERY
Sea ice concentrations are determined from the visible and near infrared albedo of the AVHRR imagery. One method uses only one channel data to interpolate the ice concentration between 0 and 100% corresponding to the open water and the snow cover, respectively. This method yields an uncertainty owin...
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ftnipr:oai:nipr.repo.nii.ac.jp:00003545 2023-05-15T13:49:00+02:00 DETERMINATION OF SEA ICE CONCENTRATION FROM AVHRR VISIBLE AND NEAR INFRARED IMAGERY ヤマノウチ タカシ スズキ カズヤ マツシタ マサトシ シミズ マサノブ ナイトウ ヤスヒコ Takashi YAMANOUCHI Kazuya SUZUKI Masatoshi MATSUSHITA Masanobu SHIMIZU Yasuhiko NAITO 1987-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3545 http://id.nii.ac.jp/1291/00003545/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3545&item_no=1&attribute_id=18&file_no=1 en eng ABSTRACT National Institute of Polar Research Space Systems Department, Fujitsu Ltd / University of Electro-Communications https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3545 http://id.nii.ac.jp/1291/00003545/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 1, 153-154(1987-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3545&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1987 ftnipr 2022-12-10T19:45:40Z Sea ice concentrations are determined from the visible and near infrared albedo of the AVHRR imagery. One method uses only one channel data to interpolate the ice concentration between 0 and 100% corresponding to the open water and the snow cover, respectively. This method yields an uncertainty owing to the variation of albedo by the surface condition change. Another method uses two-channel data to derive not only the ice concentration but also the ice surface condition and can eliminate uncertainties involved in the first method. The ice surface condition is expressed by "snow coverage". Air photographs are compared with the satellite data. They are helpful to discuss the surface condition of sea ice. Time variations of the concentration and surface condition of summer sea ice are discussed. For detail, the reader may refer to the full paper of this work (YAMANOUCHI et al. : Nankyoku Shiryo (Antarct. Rec.), 30,89,1986). Report Antarc* Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology Sea ice National Institute of Polar Research Repository, Japan |
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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 |
Sea ice concentrations are determined from the visible and near infrared albedo of the AVHRR imagery. One method uses only one channel data to interpolate the ice concentration between 0 and 100% corresponding to the open water and the snow cover, respectively. This method yields an uncertainty owing to the variation of albedo by the surface condition change. Another method uses two-channel data to derive not only the ice concentration but also the ice surface condition and can eliminate uncertainties involved in the first method. The ice surface condition is expressed by "snow coverage". Air photographs are compared with the satellite data. They are helpful to discuss the surface condition of sea ice. Time variations of the concentration and surface condition of summer sea ice are discussed. For detail, the reader may refer to the full paper of this work (YAMANOUCHI et al. : Nankyoku Shiryo (Antarct. Rec.), 30,89,1986). |
format |
Report |
author |
ヤマノウチ タカシ スズキ カズヤ マツシタ マサトシ シミズ マサノブ ナイトウ ヤスヒコ Takashi YAMANOUCHI Kazuya SUZUKI Masatoshi MATSUSHITA Masanobu SHIMIZU Yasuhiko NAITO |
spellingShingle |
ヤマノウチ タカシ スズキ カズヤ マツシタ マサトシ シミズ マサノブ ナイトウ ヤスヒコ Takashi YAMANOUCHI Kazuya SUZUKI Masatoshi MATSUSHITA Masanobu SHIMIZU Yasuhiko NAITO DETERMINATION OF SEA ICE CONCENTRATION FROM AVHRR VISIBLE AND NEAR INFRARED IMAGERY |
author_facet |
ヤマノウチ タカシ スズキ カズヤ マツシタ マサトシ シミズ マサノブ ナイトウ ヤスヒコ Takashi YAMANOUCHI Kazuya SUZUKI Masatoshi MATSUSHITA Masanobu SHIMIZU Yasuhiko NAITO |
author_sort |
ヤマノウチ タカシ |
title |
DETERMINATION OF SEA ICE CONCENTRATION FROM AVHRR VISIBLE AND NEAR INFRARED IMAGERY |
title_short |
DETERMINATION OF SEA ICE CONCENTRATION FROM AVHRR VISIBLE AND NEAR INFRARED IMAGERY |
title_full |
DETERMINATION OF SEA ICE CONCENTRATION FROM AVHRR VISIBLE AND NEAR INFRARED IMAGERY |
title_fullStr |
DETERMINATION OF SEA ICE CONCENTRATION FROM AVHRR VISIBLE AND NEAR INFRARED IMAGERY |
title_full_unstemmed |
DETERMINATION OF SEA ICE CONCENTRATION FROM AVHRR VISIBLE AND NEAR INFRARED IMAGERY |
title_sort |
determination of sea ice concentration from avhrr visible and near infrared imagery |
publisher |
ABSTRACT |
publishDate |
1987 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3545 http://id.nii.ac.jp/1291/00003545/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3545&item_no=1&attribute_id=18&file_no=1 |
genre |
Antarc* Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology Sea ice |
genre_facet |
Antarc* Polar meteorology and glaciology Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology Sea ice |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3545 http://id.nii.ac.jp/1291/00003545/ AA10756213 Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 1, 153-154(1987-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3545&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250408051736576 |