SINTEF Ocean, Trondheim, Norway.
SINTEF Ocean, Trondheim, Norway.
Mar Pollut Bull. 2019 Mar;140:65-74. doi: 10.1016/j.marpolbul.2019.01.019. Epub 2019 Jan 19.
As petroleum development and other activities move further north, the potential for oil spills in ice-covered waters is of great concern. As a tool for contingency planning and forecasting during response, oil spill models play a key role. With the development of new, high-resolution coupled ice-ocean models, better predictions of sea ice are becoming available. We have updated the OSCAR oil spill model to use sea-ice velocity and coverage fields from coupled ice-ocean models to improve simulation of oil fate and transport in ice-covered waters. We describe the implementation of oil transport in the presence of ice, and demonstrate the improvement by considering three case studies. We find clear improvement when taking ice velocity from a coupled ice-ocean model into account, compared to a heuristic model that uses surface current and wind velocity. The difference is found to be especially important in a response situation near the marginal ice zone.
随着石油开发和其他活动向北推进，浮冰覆盖水域发生溢油的潜在风险备受关注。溢油模型作为应急规划和预测的工具，在应对溢油事故中发挥着关键作用。随着新型高分辨率耦合冰海模式的发展，人们能够更好地预测海冰。我们对 OSCAR 溢油模型进行了更新，以利用耦合冰海模式的海冰速度和覆盖场，从而改进浮冰覆盖水域中油类物质的归宿和输移模拟。本文描述了在存在海冰的情况下进行油类物质输移的方法，并通过三个案例研究验证了改进效果。结果表明，与使用表面流和风速的启发式模型相比，在考虑到耦合冰海模型的冰速时，模拟结果有明显改善。在接近边缘冰区的应急响应情况下，这种差异尤为重要。
