渤海水交换的数值研究-水质模型对半交换时间的模拟  

Numerical Study on the Water Exchange of the Bohai Sea:Simulation of the Half-Life Time by Dispersion Model

作　　者：魏皓[1] 田恬[1] 周锋[2] 赵亮[1] 

机构地区：[1]青岛海洋大学,青岛266003 [2]国家海洋局第二海洋研究所,杭州310012

出　　处：《青岛海洋大学学报（自然科学版）》2002年第4期519-525,共7页Journal of Ocean University of Qingdao

基　　金：国家自然科学基金项目 (49790 10 0 1);国家重点基础研究项目 (G19990 4 380 4 )资助

摘　　要：介绍了几种关于水交换的概念和模型。认为以水质模型模拟半交换时间研究海域的水交换能力更全面、客观。对渤海水交换的研究表明 ,由于渤海环流结构及季节变化 ,使得渤海 3个海湾及渤海中部交换能力相差很大 ,莱州湾交换能力最强 ,辽东湾特别是其西部海域交换能力最弱。交换时间与物质初始浓度无关 ,与投放时刻、外源强迫密切相关。在治理渤海环境时 ,应分区进行 。In this paper some concepts and models for water exchange in the coastal sea are introduced. Half life time, simulated by a dispersion model, can represent the exchange ability of an area more completely and objectively. Study on the water exchange of the Bohai Sea by using this approach shows that the Laizhou Bay has the highest exchange ability and the Liaodong Bay, especially in the northwest part, has the lowest one. Half life time is independent of the initial concentration, but dependent on the initial time and the extra load. The best time and place for discharging the waste water should be chosen for different areas.

关 键 词：水质模型 半交换时间 渤海 季节变化 莱州湾 水动物模型 

分 类 号：P731.2[天文地球—海洋科学]