深沪湾水交换特性的研究  

Study on water exchange characters in the Shenhu Bay

作　　者：刘浩[1] 潘伟然[1] 骆智斌[1] 

机构地区：[1]厦门大学海洋系,福建厦门361005

出　　处：《海洋环境科学》2008年第2期157-160,共4页Marine Environmental Science

基　　金：中国博士后科学基金资助(20060400737)

摘　　要：纳潮量与水交换时间的大小直接决定了半封闭海湾内污染物的稀释速率,因此对其进行深入探讨对于预测湾内水质的长期变化具有重要意义。本文以11个分潮共同驱动一个三维斜压海流模式用以模拟深沪湾的潮汐潮流,进而计算出深沪湾的纳潮量。另外,浓度为1 g/m3的保守示踪物在模型启动之初被作为初始条件均匀投放在湾内,观察其后示踪物浓度随涨落潮流的变化情况,进而可以估算出深沪湾的半交换周期约为14 d。Both of the tidal prism and period of water exchange are generally used as an index to examine the dilution rate of pollutants in a semi-enclosed bay,so understanding them is significant to predict the long-term variation of water quality.Eleven tides are used to force the baroclinic coastal model by a three dimensional to reproduce the tidal regime in the Shenhu Bay.Based on the validated simulations,the tidal prism is estimated further,which also is unanimous with our observations.In addition,the period o...

关 键 词：深沪湾 纳潮量 水交换时间 数值模拟 

分 类 号：P731.26[天文地球—海洋科学]