| タイトル | 東部太平洋における海水中の宇宙線生成核種Be-7、Be-10の分布 |
| その他のタイトル | Distribution of cosmogenic Be-7 and Be-10 in the eastern Pacific Ocean |
| 著者（日） | 齋藤 千春; 山形 武靖; 米田 成一; 松崎 浩之; 永井 尚生 |
| 著者（英） | Saito, Chiharu; Yamagata, Takeyasu; Yoneda, Shigekazu; Matsuzaki, Hiroyuki; Nagai, Hisao |
| 著者所属（日） | 日本大学 大学院総合基礎科学研究科; 日本大学 大学院総合基礎科学研究科; 国立科学博物館 理工学研究部; 東京大学 原子力研究総合センター; 日本大学 文理学部 |
| 著者所属（英） | Nihon University Graduate School of Integrated Basic Sciences; Nihon University Graduate School of Integrated Basic Sciences; National Science Museum Department of Science and Engineering; University of Tokyo Research Center for Nuclear Science and Technology; Nihon University College of Humanities and Sciences |
| 発行日 | 2004-10 |
| 刊行物名 | Proceedings of the Fifth Workshop on Environmental Radioactivity
Proceedings of the Fifth Workshop on Environmental Radioactivity |
| 開始ページ | 160 |
| 終了ページ | 163 |
| 刊行年月日 | 2004-10 |
| 言語 | jpn |
| 抄録 | To investigate the vertical profiles and latitudinal distributions of Be-7 (T(sub 1/2) = 53.3 day) and Be-10 (T(sub 1/2) = 1.5 x 10(exp 6) y) in the eastern Pacific Ocean, seawater samples from 6 m to 500 m depth at 10 stations and 33 surface water samples were collected during the R/V Hakuho-Maru KH03-1 cruise from June to September 2003. Based on the Be-7 and Be-10 concentrations in the surface layer, the mean residence times for Be isotopes were estimated to be 1 to 20 years, and the Be-7 and Be-10 fluxes across the ocean surface ware estimated to be 0.01 to 0.06 and 0.01 to 0.09 atoms cm(sup -2) sec(sup -1), respectively. |
| キーワード | aerosol; Be-7; Be-10; ocean dynamics; cosmic ray; mass transfer; adsorption; surface water; upwelling current; エアロゾル; Be-7; Be-10; 海洋ダイナミクス; 宇宙線; 物質移動; 吸着; 表面水; 湧昇流 |
| 資料種別 | Conference Paper |
| SHI-NO | AA0047521029 |
| レポートNO | KEK-Proceedings-2004-8 |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/56605 |
