罗源湾海水与外海水的交换研究

Study on the sea water exchange between the open sea and Luoyuan Bay

根据多年的实测潮位资料，分析了罗源湾的潮汐特征，共计算出该湾的纳潮量、海水的交换率及海水半更换期。结果表明：罗源湾潮差较大，具有较大的纳潮量，大潮期间该湾的总纳潮量可达到0．96×109m3。就平均而言，罗源湾海水的半更换期约为17个潮周期。

Based on several years of the measured tide records, the characteristics of tide in theLuoyuan Bay has been analysed, then the tidal prism, the exchange rate of the sea water and thehalf-exchange period of the bay have also been computed. The results show that: the LuoyuanBay has the higher tidal range and higher tidal prism. The total tidal prism of the Luoyuan Baycan reach 0. 96 × 109 m3 during the spring tide. The average half-exchange period of the LuoyuanBay is about 17 tidal periods.