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A method of cloud field detection over Antarctica during the polar night using AVHRR data
https://doi.org/10.15094/00002935
https://doi.org/10.15094/00002935b61eed95-e96e-4629-b3f2-0c2322319955
名前 / ファイル | ライセンス | アクション |
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KJ00002364422 (1.0 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2001-11-01 | |||||
タイトル | ||||||
タイトル | A method of cloud field detection over Antarctica during the polar night using AVHRR data | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00002935 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
記事種別(英) | ||||||
en | ||||||
Scientific Note | ||||||
論文名よみ | ||||||
その他のタイトル | A method of cloud field detection over Antarctica during the polar night using AVHRR data | |||||
著者名よみ |
クジ, マコト
× クジ, マコト× キクチ, ノブユキ× ヒラサワ, ナオヒコ× ヤマノウチ, タカシ |
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著者名(英) |
Kuji, Makoto
× Kuji, Makoto× Kikuchi, Nobuyuki× Hirasawa, Naohiko× Yamanouchi, Takashi |
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著者所属(英) | ||||||
en | ||||||
Department of Information and Computer Sciences, Nara Women's University | ||||||
著者所属(英) | ||||||
en | ||||||
Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | An improved algorithm for cloud field detection over the Antarctic region is presented. The algorithm is a combination of a conventional split window method and a spatial coherence method. The conventional split window method utilizes the brightness temperature and the brightness temperature difference between split window channels. The spatial coherence method makes use of the standard deviation of the brightness temperature difference between split window channels as an index of cloud field homogeneity. The algorithm, in principle, enables us to detect an inhomogeneous cloud field which has not been well detected with only the conventional split window method. This algorithm was applied to Advanced Very High Resolution Radiometer (AVHRR) data during the polar night over the Antarctic region. It is found that the improved algorithm seems to work well for an inhomogeneous cloud field as expected, although there still remains uncertainty related to the vertical structure of the cloud field. In order to investigate the vertical structure in detail, further analyses are needed such as comparison of the result to ground-based meteorological observation, radiative transfer simulation, and analysis of TIROS-N Operational Vertical Sounder (TOVS) data. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1129795X | |||||
書誌情報 |
Polar meteorology and glaciology 巻 15, p. 114-123, 発行日 2001-11 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |