The spatial and seasonal distributions of air-transport origins to the Antarctic based on 5-day backward trajectory analysis

• 資料種別: 文書・図像類
• タイトル: The spatial and seasonal distributions of air-transport origins to the Antarctic based on 5-day backward trajectory analysis
• 著者・編者: 鈴木, 香寿恵; 山内, 恭; 川村, 賢二; 本山, 秀明; Kazue , Suzuki; Takashi, Yamanouchi; Kenji, Kawamura; Hideaki, Motoyama
• 著者標目: 鈴木, 香寿恵; 山内, 恭; 川村, 賢二; 本山, 秀明; Kazue , Suzuki; Takashi, Yamanouchi; Kenji, Kawamura; Hideaki, Motoyama
• 出版年月日等: 2013-11-15
• 出版年（W3CDTF）: 2013-11-15
• 並列タイトル等: 南極氷床への大気輸送起源分布の季節変化
• 本文の言語コード: eng
• 対象利用者: 一般
• 一般注記: Transport of moisture-bearing air to the Antarctic is one of the important factors that control the mass balance of the ice sheet. Here, we investigate the distribution of air-parcel transport using a backward trajectory analysis over the entire Antarctic ice sheet, based on whether the air parcel was located inside or outside of Antarctica at 5 days before arrival. At this time, we considered the air from outside Antarctica to be moisture rich. Oceanic air was found to dominate in West Antarctica throughout the year, whereas air from inland was more prominently distributed around East Antarctica, especially in summer. In East Antarctica, there was a significant seasonal variation: air from inland dominated in summer, while air of oceanic origin dominated in winter. The distribution of air parcels that came from oceanic/inland sources was similar to the accumulation map (based on satellite data), which indicates that oceanic air parcels could be a substitute for moisture transport to the Antarctic. To determine the future impacts of climate change (e.g., sea level rise), more precise predictions of the variations in the surface mass balance will be required. Our results contribute towards the improved understanding of the spatial distributions of accumulation and aerosols found in Antarctic snow and ice cores.; 第4回極域科学シンポジウム個別セッション：[OM] 気水圏11月15日（金） 国立極地研究所 ３階ラウンジ
• オンライン閲覧公開範囲: 限定公開
• 連携機関・データベース: 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• 提供元機関・データベース: 国立極地研究所 : 国立極地研究所学術情報リポジトリ