潮汐和季风作用下渤海湾水交换研究  

Study on water exchange in Bohai Bay under effects of tides and seasonal winds

作　　者：陶磊[1] 孙健[2] 刘海英 李原仪 尚建程 林斌良[2] 聂振华 袁德奎[6] TAO Lei;SUN Jian;LIU Haiying;LI Yuanyi;SHANG Jiancheng;LIN Binliang;NIE Zhenhua;YUAN Dekui(Tianjin Academy of Environmental Sciences,Tianjin 300191;State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084;Bureau of Ecology and Environment of Binhai New Area of Tianjin,Tianjin 300457;Chinese Research Academy of Environmental Science,Beijing 100012;Tianjin Huanke Environment Consulting Co.,Ltd.,Tianjin 300457;Department of Mechanism,Tianjin University,Tianjin 300354)

机构地区：[1]天津市环境保护科学研究院,天津300191 [2]清华大学水沙科学与水利水电工程国家重点实验室,北京100084 [3]天津市滨海新区生态环境局,天津300457 [4]中国环境科学研究院,北京100012 [5]天津环科环境咨询有限公司,天津300457 [6]天津大学力学系,天津300354

出　　处：《水力发电学报》2020年第5期99-107,共9页Journal of Hydroelectric Engineering

基　　金：国家重点研发计划(2016YFA0600901);国家重点研发计划(2016YFE013370);国家自然科学基金面上项目(51679125)

摘　　要：渤海湾毗邻我国北方重要的经济带——环渤海经济圈,高污染负荷使其面临巨大的环境压力。水交换能力是影响渤海湾环境容量的重要动力学因素,其中潮汐和风应力是渤海湾水交换的关键驱动因素。本文针对渤海湾的水交换问题建立了基于欧拉观点的水龄模型,通过对比潮汐单独作用下与潮汐和季风共同作用下渤海湾内水龄的时空分布特征,研究了这两个因素在渤海湾水交换中的作用。研究结果表明,季风使得渤海湾与外海的水交换明显加快,是影响渤海湾物理自净能力的重要因素。对渤海湾水龄的季节变化分析表明,冬季渤海湾与渤海中部水交换较强,夏季较弱。The Bohai Bay is encircled by the Bohai Sea economic zone and faces high pressure of environmental protection due to its high pollution load. Water exchange capacity is a key factor of environmental capacity, and in the bay it is dominated by tides and winds. This study develops a water age model using an Eulerian approach, and simulates the role of winds in water exchange in this bay, focusing on comparison of the water age and its temporal and spatial distribution characteristics between two cases-under the combined effects of tides and winds, and under the effect of tides only. The results show wind action is a crucial factor of water exchange that greatly accelerates the exchange between the bay and the Yellow Sea. Seasonal variations in water age reveal that the exchange between the bay and the central Bohai Sea is strong in winter and weak in summer.

关 键 词：渤海湾 季风 水交换 水龄 季节变化 

分 类 号：P76[天文地球—海洋科学]