基于粒子相对离散探测海洋中的物质输运结构——以海州湾为例  

Based on the relative dispersion approach to detect the material structure in the ocean-a case on Haizhou bay

作　　者：刘耀民 向旭昇 张学庆[1,2] 于金珍 熊瑛[4] LIU Yaomin;XIANG Xusheng;ZHANG Xueqing;YU Jinzhen;XIONG Ying(Key Laboratory of Marine Environment and Ecology,Ministry of Education of China,Ocean University of China,Qingdao 266100,China;College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100,China;Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,State Key Laboratory of Mariculture Breeding and Sustainable Goods,Qingdao 266071,China;Jiangsu Marine Fisheries Research Institute,Nantong 226007,China)

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100 [2]中国海洋大学海洋环境与生态教育部重点实验室,山东青岛266100 [3]中国水产科学研究院黄海水产研究所海水养殖生物育种与可持续产出全国重点实验室,山东青岛266071 [4]江苏省海洋水产研究所,江苏南通226007

出　　处：《海洋环境科学》2025年第1期126-134,共9页Marine Environmental Science

基　　金：江苏省省级农业生态保护与资源利用-渔业生态与资源监测项目(2022-SJ-061-01);国家自然科学基金资助项目(31802297)。

摘　　要：探究海洋流体中隐藏的物质输运结构对了解物质输运过程具有重要意义。本研究采用区域海洋模拟系统(regional ocean modelling system,ROMS)和粒子追踪模型模拟时变双螺旋流场和海州湾水动力场的物质输运过程,并通过四粒子相对离散(relative dispersion,RD)方法探测隐藏在流体中的物质输运结构。结果表明,四粒子RD方法能够有效识别出近海流场的物质混合屏障及物质聚集区等结构,这些结构有助于对物质的输运趋势进行宏观的预测。四粒子RD方法在海州湾的应用表明,在灌河河口附近的浅滩区域存在逆时针螺旋状的前向RD结构,这些结构形成的物质输运屏障或输运通道,可以阻碍或加快物质的输运过程。It is important to study the hidden structures of material transport in marine fluids to understand the material transport process.Therefore,this study uses the four-particle RD approach to detect the material transport structure hidden in the time-varying double gyre ideal flow field and the flow field in Haizhou bay,and the material transport processes in these fields are simulated by Regional Ocean Modelling System(ROMS)and particle tracking model.The results indicate that the four-particle RD approach effectively identifies structures such as material mixing barriers and material aggregation zones in the nearshore flow fields,offering macroscopic insights into predicting trends in material transport.The application of the four-particle RD approach in Haizhou bay reveals the presence of clockwise helical forward RD structures in the shoal areas outside the Guanhe River estuary.These structures form material transport barriers or channels that impede or accelerate the material transport process.

关 键 词：拉格朗日 粒子统计方法 相对离散 物质输运 

分 类 号：X143[环境科学与工程—环境科学]