胶州湾潮余流和物质输送之间的关系
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摘要
基于MIKE21的HD模型,通过模拟得到胶州湾的潮流场,胶州湾在涨急时最大流速1.04m/s,落急时最大流速约为0.96m/s。胶州湾余流总体较小,平均为0.03m/s左右。并在湾内不同位置释放自由粒子,以MIKE21的Particle tracking模型计算出其在潮流作用下的运移轨迹,结果表明粒子大多数运移到湾内近岸区域,少部分在湾口区域附近;在潮流场基础上计算了欧拉余流场,并和粒子运移结果进行对比,表明欧拉余流场在区域流向比较一致时可以表示粒子运动的趋势,为物质迁移、控制污染等方面提供了一定的参考借鉴意义。
Based on the HD model of MIKE21, the tidal current field of Jiaozhou Bay is simulated. The maximum velocity of tidal current in Jiaozhou Bay is 0.5 m/s at high tide and 0.6 m/s at fall tide.The overall residual current in Jiaozhou Bay is small, with an average of about 0.03 m/s. The free particles are released at different positions in the bay, and their migration trajectories under the action of tidal current are calculated by using MIKE21's particle tracking model. The results show that most of the particles migrate to the inshore area of the bay, and a few are near the mouth of the bay. Based on the tidal current field, the Euler residual flow field is calculated and compared with the results of particle migration. It is shown that the Euler residual flow field can represent the trend of particle movement when the flow direction is relatively consistent in the regional flow direction, It provides some reference for material migration and pollution control.
Based on the HD model of MIKE21, the tidal current field of Jiaozhou Bay is simulated. The maximum velocity of tidal current in Jiaozhou Bay is 0.5 m/s at high tide and 0.6 m/s at fall tide.The overall residual current in Jiaozhou Bay is small, with an average of about 0.03 m/s. The free particles are released at different positions in the bay, and their migration trajectories under the action of tidal current are calculated by using MIKE21's particle tracking model. The results show that most of the particles migrate to the inshore area of the bay, and a few are near the mouth of the bay. Based on the tidal current field, the Euler residual flow field is calculated and compared with the results of particle migration. It is shown that the Euler residual flow field can represent the trend of particle movement when the flow direction is relatively consistent in the regional flow direction, It provides some reference for material migration and pollution control.
引文
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[3] 王雪,陈学恩.胶州湾纳潮量和水交换数值模拟[J].中国海洋大学学报(自然科学版),2017,47(03):1-9.
[4] 王以菲,蔡忠亚,王强,等.胶州湾夏季盐度长期输运机制分析[J].中国海洋大学学报(自然科学版),2014,44(06):10-17.
[5] 孙英兰,张越美.胶州湾三维变动边界的潮流数值模拟[J].海洋与湖沼,2001,(04):355-362.
[6] 闫菊,王海,鲍献文.胶州湾三维潮流及潮致余环流的数值模拟[J].地球科学进展,2001,(02):172-177.
[7] 庄海海,徐绍辉,高茂生,等.胶州湾表层沉积物粒度特征及其沉积环境[J].海洋地质前沿,2018,34(09):24-31.
[8] Bao M,Guan W,Yang Y,et al.Drifting trajectories of green algae in the western Yellow Sea during the spring and summer of 2012[J].Estuarine,Coastal and Shelf Science,2015,163:9-16.
[9] Mansui J,Molcard A,Ourmières Y.Modelling the transport and accumulation of floating marine debris in the Mediterranean basin[J].Marine Pollution Bulletin,2015,91(1):249-257.
[10] Liubartseva S,Coppini G,Lecci R,et al.Regional approach to modeling the transport of floating plastic debris in the Adriatic Sea[J].Mar Pollut Bull,2016,103(1-2):115-127.
[11] Bi H,Si H.Dynamic risk assessment of oil spill scenario for Three Gorges Reservoir in China based on numerical simulation[J].Safety Science,2012,50(4):1112-1118.
[12] Jiang T,Skyllberg U,Bjorn E,et al.Characteristics of dissolved organic matter (DOM) and relationship with dissolved mercury in Xiaoqing River-Laizhou Bay estuary,Bohai Sea,China[J].Environ Pollut,2017,223:19-30.
[13] D??s K,Rupolo V,Brodeau L.Dispersion of surface drifters and model-simulated trajectories[J].Ocean Modelling,2011,39(3-4):301-310.
[14] Leonardi N,Kolker A S,Fagherazzi S.Interplay between river discharge and tides in a delta distributary[J].Advances in Water Resources,2015,80(2015):70-75.
[15] Rodríguez P A,Carbajal N,Rodríguez J H G.Lagrangian trajectories,residual currents and rectification process in the Northern Gulf of California[J].Estuarine,Coastal and Shelf Science,2017,194(2017):263-275.
[16] Liubartseva S,Coppini G,Lecci R,et al.Regional approach to modeling the transport of floating plastic debris in the Adriatic Sea[J].Marine Pollution Bulletin,2016,103(2016):115-127.
[17] 王翠,孙英兰,张学庆.基于EFDC模型的胶州湾三维潮流数值模拟[J].中国海洋大学学报(自然科学版),2008,(05):833-840.
[18] 吕新刚,乔方利,夏长水.胶州湾潮汐潮流动边界数值模拟[J].海洋学报(中文版),2008,(04):21-29.
[19] 刘光亮.一般非线性拉格朗日余流及潮际盐度输运研究[D].中国海洋大学2013:26-33.
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