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Long-term all-sky-camera images and evaluated cloud-cover data at Syowa Station, Antarctica
http://hdl.handle.net/10935/0002005980
http://hdl.handle.net/10935/000200598077b0ac88-5c4f-4709-954f-3f0c2507b23c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
https://doi.org/10.20575/00000047
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| アイテムタイプ | default_学術雑誌論文 / Journal Article(1) | |||||||||||
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| タイトル | ||||||||||||
| タイトル | Long-term all-sky-camera images and evaluated cloud-cover data at Syowa Station, Antarctica | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | All sky camera | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Cloud monitoring | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Antarctica | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | Syowa Station | |||||||||||
| 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 | journal article | |||||||||||
| アクセス権 | ||||||||||||
| アクセス権 | metadata only access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||||
| 著者 |
平沢, 尚彦
× 平沢, 尚彦× 矢吹, 正教× 塩原, 匡貴× 下出, 有実
× 久慈, 誠 |
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | We acquired fish-eye camera (referred to as all-sky-camera) images for detection of cloud distribution in the entire sky and also for use as reference data for optical observations (i.e., sky radiometry and micro-pulse lidar observations) conducted at Syowa Station (69°00′S, 39°35′E), Antarctica, from 2006 to 2022 as a part of a scientific project entitled, “Monitoring observations of the Antarctic aerosols and clouds” as part of the Japanese Antarctic Research Expedition (JARE) program. We evaluated the cloud cover in all the images captured over this period using an objective algorithm based on the brightness of the RGB colors of the images. The importance of cloud properties in climate change models is well known, and obtaining long-term information on cloud properties is important for atmospheric monitoring over Antarctica. This paper describes the archives of all-sky-camera images, evaluated cloud-cover images, and text data of time series of evaluated cloud amounts for this period. Compared with eye observation, the evaluated cloud amounts from the all-sky-camera are underestimated by about 10%. Still, the so-called “U-shaped” frequency distribution is common, where the frequency increases near the maximum and minimum cloud amounts. In addition, we briefly touch on the method of cloud detection. The data are available from the National Institute of Polar Research (NIPR) at https://scidbase.nipr.ac.jp/modules/metadata/index.php?content_id=138. | |||||||||||
| 言語 | en | |||||||||||
| bibliographic_information |
en : Polar Data Journal 巻 7, p. 35-49, 発行日 2023 |
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| 出版者 | ||||||||||||
| 出版者 | National Institute of Polar Research | |||||||||||
| 言語 | en | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | 国立極地研究所 | |||||||||||
| 言語 | ja | |||||||||||
| item_10001_source_id_9 | ||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||
| 収録物識別子 | 2432-6771 | |||||||||||
| item_10001_relation_14 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.20575/00000047 | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | NA | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |||||||||||
