| 言語種別 | 英語 |
|---|---|
| 発行・発表の年月 | 2005/09/08 |
| 形態種別 | 学術研究論文 |
| 査読 | 査読あり |
| 標題 | Modeling near-field dispersion from direct injection of carbon dioxide into the ocean |
| 執筆形態 | 共著 |
| 掲載誌名 | Journal of Geophysical Research C: Oceans |
| 掲載区分 | 国外 |
| 巻・号・頁 | 110(9),1-13 |
| 著者・共著者 | Baixin Chen,Yongchen Song,Masahiro Nishio,Satoshi Someya,Makoto Akai |
| 概要 | In this paper we have predicted the dynamics of double plume formation and dispersion from direct injection of liquid CO2 into middle-depth ocean water. To do so, we used a three-dimensional, two-fluid numerical model. The model consists of a CO2 droplet submodel and a small-scale turbulent ocean submodel, both of which were calibrated against field observation data. With an injection rate of 100 kg s-1 CO2, numerical simulations indicated that the injection of 8-mm-diameter CO2 droplets from fixed ports at 858 m (20 m above the seafloor) into a current flowing at 2.5 cm s-1 could create a plume that reaches the bottom and has at most a 2.6-unit decrease in pH. The strong interaction between the buoyant rise of the liquid CO2 and the fall of the CO2-enriched water produced a vertically wavy plume tip at about 190 m above the seafloor. The maximum pH decrease, how |
| DOI | 10.1029/2004JC002567 |
| ISSNコード | 0148-0227 |