浙闽沿岸海域跨陆架输运的特征和动力机制研究

项目名称： 浙闽沿岸海域跨陆架输运的特征和动力机制研究

项目编号： No.41506030

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 天文学、地球科学

项目作者： 曾定勇

作者单位： 自然资源部第二海洋研究所

项目金额： 22万元

中文摘要： 通过基于大量观测资料的分析和数值模拟，研究在东海浙闽沿岸海域的跨陆架输运大小、路径、时间变化和影响的动力机制。利用近年来在东海大面观测的温盐资料和走航观测的海流资料分析跨陆架输运的路径和影响范围。运用MITgcm模拟浙闽沿岸海域跨陆架输运的空间分布特征和时间演变过程，剖析影响跨陆架输运的动力机制，例如冬季风下游堆积效应和黄海生成的地形罗斯贝波南传在东海南部造成的海平面升高而形成的地转输运、夏季风埃克曼输运造成的跨陆架流动。再利用在浙闽沿岸海域锚系观测的海流资料分析跨陆架海流的时间演变过程，检验数值模拟结果，提高对浙闽沿岸跨陆架输运的演变过程和影响机制的认识。

中文关键词： 跨陆架输运；动力机制；；浙闽沿岸；数值模拟；观测

英文摘要： Through analysis a number of observations and numerical simulation, researching magnitude, path, temporal variation and dynamic mechanism of cross-shelf transport in the East China Sea near coast of Zhejiang and Fujian provinces. Based on many station observations of temperature and salinity data and underway observations of current in recent year, paths and extents of the cross-shelf transport will be analyzed. MITgcm is used to simulate the spatial distribution and temporal evolution of cross-shelf transport near coast of Zhejiang and Fujian provinces, and analyze the dynamic mechanisms of the cross-shelf transport. Such as the downwind pile-up of sea level caused by winter wind , southward propagation of the topographic Rossby waves originated in Yellow Sea, and sea-level rise in southern of the East China Sea caused by Ekman transport in summer. Some mooring current data in Zhejiang and Fujian coastal waters will be used to analyze the time evolution of cross shelf current, test results of numerical simulation, and improve the understanding of mechanism on the evolution of cross-shelf transport in coastal areas of Zhejiang and Fujian provinces

英文关键词： cross-shelf transport;dynamic mechanism;Zhejiang and Fujian coastal area;numerical simulation;observation