Simulating pathways of subsurface oil in the Faroe-Shetland Channel using an ocean general circulation model.
Simulating pathways of subsurface oil in the Faroe-Shetland Channel using an ocean general circulation model.
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DOI：
10.1016/j.marpolbul.2016.09.041
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发表时间：
2017-01
影响因子：
5.8
通讯作者：
C. Main;A. Yool;N. P. Holliday;E. Popova;D. O. Jones;H. Ruhl
中科院分区：
文献类型：
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作者：
C. Main;A. Yool;N. P. Holliday;E. Popova;D. O. Jones;H. Ruhl
人们对深海油井井喷产生的地下碳氢化合物羽流的命运及其对过程和群落的影响知之甚少。随着法罗-设得兰海峡 (FSC) 深水钻探的扩大，油井井喷的可能性很大，而该地区不寻常的海洋环流对了解发生泄漏时可能的地下石油路径提出了挑战。在这里，海洋环流模型与粒子跟踪算法一起使用来评估 FSC 中深海油井井喷的油羽分布的时间变化。粒子的漂移在释放后一年内首次被追踪。然后，使用环境模型温度来模拟温度介导的生物降解，相应地截断颗粒的轨迹。模拟的地下羽流的释放深度影响其传输方向和从释放位置移动的距离，并且传输存在相当大的年际变化。
Little is known about the fate of subsurface hydrocarbon plumes from deep-sea oil well blowouts and their effects on processes and communities. As deepwater drilling expands in the Faroe–Shetland Channel (FSC), oil well blowouts are a possibility, and the unusual ocean circulation of this region presents challenges to understanding possible subsurface oil pathways in the event of a spill. Here, an ocean general circulation model was used with a particle tracking algorithm to assess temporal variability of the oil-plume distribution from a deep-sea oil well blowout in the FSC. The drift of particles was first tracked for one year following release. Then, ambient model temperatures were used to simulate temperature-mediated biodegradation, truncating the trajectories of particles accordingly. Release depth of the modeled subsurface plumes affected both their direction of transport and distance travelled from their release location, and there was considerable interannual variability in transport.