摘要
为科学评估港区溢油事故的影响,以嘉兴港乍浦港区码头航道发生溢油事故对周边环境敏感区影响为例,应用MIKE21软件,基于拉格朗日“油粒子”理论并考虑溢油入海后不同过程影响构建平面二维数值模型,采用连续工况法设计5 200组工况对该地区水文气象及溢油条件的组合工况实现全覆盖,得到溢油72 h油膜扩散状况,并将周边主要敏感目标区域按照溢油风险指数计算结果进行区域划分。研究结果表明:连续工况相比随机工况更具有地域典型性和非偶然性,连续工况下溢油海上扩散影响统计面积最高达2 547.0 km^(2);九龙山重要滨海旅游区、海盐农渔业区和杭州湾湿地海洋保护区属于高风险区,受该地区航道溢油事故油膜影响大,其他敏感目标所受影响程度随油膜扩散距离而不同。
To scientifically assess the impact of oil spill accidents in port areas,taking the spill accident in the navigation channel of Zhapu Port area of Jiaxing Port as an example,the MIKE21 software was applied.Based on the Lagrangian“oil particle”theory and considering the different processes after the oil spills into the sea,a twodimensional numerical model was constructed.The model incorporated 5,200 sets of continuous operating conditions to comprehensively cover the hydrological and meteorological conditions as well as oil spill scenarios in the area.The oil spill spreading situation within 72 hours was obtained,and the surrounding major sensitive target areas were divided into regions based on the results of oil spill risk index calculations.The research results indicate that continuous operating conditions are more geographically typical and non-random compared to random operating conditions.Under continuous operating conditions,the statistical area affected by oil spill spreading at sea reaches up to 2,547.0 km^(2).The Jiulongshan important coastal tourist area,Haiyan agricultural and fishery area,and Hangzhou Bay wetland marine protected area are considered high-risk areas,significantly impacted by the oil film from the spill accident in the navigation channel of the area.The degree of impact on other sensitive targets varies with the distance of oil film spreading.
作者
李燃
许雪峰
宋泽坤
杨万康
袁行知
LI Ran;XU Xuefeng;SONG Zekun;YANG Wankang;YUAN Xingzhi(Second Institute of Oceanography,Marine Engineering Survey and Design Institute,Hangzhou 310012,China;Key Laboratory of Marine Space Resources Management,Ministry of Natural Resources,Hangzhou 310012,China)
出处
《水利水运工程学报》
CSCD
北大核心
2024年第3期24-33,共10页
Hydro-Science and Engineering
基金
国家重点研发专项资助项目(2018YFB1501901)
浙江省自然科学基金资助项目(LO20D060003)。
关键词
水动力模型
溢油扩散
敏感区
风险预测
嘉兴港区
hydrodynamic model
oil spill spreading
sensitive area
risk prediction
Jiaxing Port area
