A Modeling Study on the Oil Spill of M/V Marathassa in Vancouver Harbour
A Modeling Study on the Oil Spill of M/V Marathassa in Vancouver Harbour
复制标题
温哥华港M/V Marathassa漏油事件的模拟研究
DOI：
10.3390/jmse6030106
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发表时间：
2018
影响因子：
2.9
通讯作者：
T. King
中科院分区：
文献类型：
--
作者：
Xiaomei Zhong;H. Niu;Yongsheng Wu;C. Hannah;Shihan Li;T. King
马拉萨号油轮于2015年4月8日在英吉利湾发生漏油事故。本文采用有限体积群落海洋模型（FVCOM）强制建立的基于颗粒的三维溢油应急与响应（OSCAR）模型，研究了溢油的运移轨迹和运移机制。FVCOM提供了OSCAR溢油模型使用的水动力变量。结果表明，浮油在水面和岸线上的比例以及回收的浮油量受到初始释放时间、总排放持续时间、风力和回收行动的影响。Marathassa号油轮溢油的后向预测表明，2015年4月8日14点至15点之间可能发生溢油。释放可能持续了相对较长的时间（本研究假设为22小时）。本研究的建模结果被认为是合理的，可以进一步应用于英吉利湾和温哥华港的风险评估研究。泄漏轨迹主要受潮流控制，潮流对第一海峡和中央海港的海岸线和地形非常敏感。模型的结果还表明，要模拟港口的石油泄漏，需要一个高分辨率的模型，能够解决海岸线和地形的突然变化。
The M/V Marathassa oil spill occurred on 8 April 2015 in the English Bay. In the present study, the trajectory and the transport mechanism of the spilled oil have been studied by using the three-dimensional and particle-based Oil Spill Contingency and Response (OSCAR) model forced by the Finite-Volume Community Ocean Model (FVCOM). FVCOM provided the hydrodynamic variables used by the oil spill model of OSCAR. The results showed that the fraction of the oil on the water surface and on the shoreline, as well as the amount of oil recovered were affected by the time of the initial release, the overall duration of the discharge, wind and recovery actions. The hindcast study of the M/V Marathassa oil spill showed that the likely starting time for the discharge was between 14:00 and 15:00, on 8 April 2015. The release may have lasted for a relatively long time (assumed to be 22 h in this study). The results of modeling in this study were found reasonably acceptable allowing for further application in risk assessment studies in the English Bay and Vancouver Harbour. The trajectory of the spill was mainly controlled by the tidal currents, which were strongly sensitive to the local coastline and topography of First Narrows and that in the central harbour. The model results also suggested that a high-resolution model, which was able to resolve abrupt changes in the coastlines and topography, was necessary to simulate the oil spill in the harbour.