基于双矩形海湾模型的泰国湾潮汐潮流研究  

Study on Tide and Tidal Current in the Gulf of Thailand Based on a Two-Rectangular-Gulf Model

作　　者：吴頔[1,2] 方国洪[1,2] 滕飞[1,2] 崔欣梅[1,2] 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061 [2]海洋环境科学和数值模拟国家海洋局重点实验室,山东青岛266061

出　　处：《海洋科学进展》2013年第4期465-477,共13页Advances in Marine Science

基　　金：国家国际科技合作专项--中印尼合作南海-西印尼海-印度洋水交换及其气候效应(2010DBF23580);国家自然科学基金--中国近海及邻近海区海洋与地球潮汐相互作用研究(40676009);国家自然科学青年基金--印尼海潮波和潮混合的分析和数值研究(40606006);青岛市科技计划基础研究项目--渤黄东海潮汐潮流预报系统(11-1-4-98-jch);中央级公益性科研院所基本科研业务费专项资金--海洋环流建模研究(2007-31)

摘　　要：基于推广后Taylor解新建双矩形海湾模型,加入摩擦及开边界强迫,给出泰国湾的一种理论模型。模型良好地再现泰国湾K1和M2分潮的潮汐特征,并给出K1和M2分潮的潮流及潮能通量密度分布图。模型揭示了Kelvin波和Poincaré波在泰国湾潮波形成中的贡献。针对M2分潮设计了2组敏感性实验,证明曼谷湾对于泰国湾湾顶无潮点的存在及位置起到关键作用;开边界迟角向西滞后是湾口附近顺时针旋转潮波系统形成的必要条件。To investigate the tidal dynamics in the Gulf of Thailand, a theoretical tide model for the Gulf of Thailand is given by establishing a two-rectangular-gulf model based on a generalized Taylor problem solu- tion, to which a bottom friction and an open boundary are incorporated. This model reproduces well the characteristics of the tidal components K1 and M2 in the Gulf of Thailand. It can provide with the distribu- tions of tidal current ellipses and tidal energy flux density vectors of M2 and K1 and reveal the contributions of Kelvin- and Poincaré-waves to the formation of the tidal waves in the Gulf of Thailand. Two sensitive experiments are designed for the component M2 and the experimental results indicate that 1） the Gulf of Bangkok plays a key role in determining the existence and position of the amphidromic point at the top of the Gulf of Thailand; and 2） the westward delay of the phase lag along the open boundary is the prerequi- site for forming a clockwise rotation tide system at the mouth area of the Gulf of Thailand.

关 键 词：双矩形海湾模型 Taylor问题 泰国湾 潮波 

分 类 号：P731.23[天文地球—海洋科学]