热带海洋学报 ›› 2010, Vol. 29 ›› Issue (3): 1-9.doi: 10.11978/j.issn.1009-5470.2010.03.001

• 海洋水文学 •    下一篇

不考虑局地引潮势的南海正压潮能通量与潮能耗散

佟景全1,2, 雷方辉3, 毛庆文1, 齐义泉1   

  1. 1. 中国科学院南海海洋研究所热带海洋环境动力学重点实验室, 广东 广州 510301; 2. 中国科学院研究生院, 北京 100049; 3. 中国海洋石油研究中心, 北京 100027
  • 收稿日期:2008-12-25 修回日期:2009-04-06 出版日期:2010-07-01 发布日期:2010-05-24
  • 作者简介:佟景全(1979—), 男, 辽宁省庄河市人, 博士研究生, 目前从事海洋动力过程数值模拟和分析工作。
  • 基金资助:

    中国科学院知识创新工程项目(Kzcx2-Yw-201); 国家科技计划支撑项目(2006BAB19B01); 国家“973计划”(2006CB403604)

Tidal energy fluxes and dissipation in the South China Sea without considering tide-generated potential energy

TONG Jing-quan1,2, LEI Fang-hui3, MAO Qing-wen1, QI Yi-quan1   

  1. 1. Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sci-ences, Guangzhou 510301, China; 2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China; 3. CNOOC Research Center, Beijing 100027, China
  • Received:2008-12-25 Revised:2009-04-06 Online:2010-07-01 Published:2010-05-24
  • About author:佟景全(1979—), 男, 辽宁省庄河市人, 博士研究生, 目前从事海洋动力过程数值模拟和分析工作。
  • Supported by:

    中国科学院知识创新工程项目(Kzcx2-Yw-201); 国家科技计划支撑项目(2006BAB19B01); 国家“973计划”(2006CB403604)

摘要:

利用ECOM模式模拟南海正压M2、S2、K1、O1分潮, 对南海潮能通量及潮能耗散进行研究。结果显示, M2、S2、K1和O1分潮分别有38.93、5.77、29.73和28.97GW的能通量经吕宋海峡传入南海, 并有2.42、0.36、8.67和7.86GW的能通量由南海经卡里马塔海峡传入爪哇海。由东海及吕宋海峡西北部传入台湾海峡的M2分潮能通量为25.28GW。半日潮进入北部湾和泰国湾的能通量较少(6.52GW), 全日潮则较大(24.74GW)。通过民都洛和巴拉巴克海峡断面, 全日潮由南海向苏禄海共输送12.28GW的能通量, 而半日潮则由苏禄海向南海输送1.92GW的能通量。由模式输出结果估计得到的南海各局部海域的底摩擦耗散与净潮能通量存在差异, 为使二者平衡, 可对南海不同海域的底摩擦系数进行调整。依净潮能通量与底摩擦耗散平衡关系计算得到台湾海峡、北部湾、泰国湾及南海深水海域的底摩擦系数分别为0.0023、0.0024、0.0023和0.0021。

关键词: 南海, 潮能通量, 底摩擦耗散, 底摩擦系数

Abstract:

The tidal energy fluxes and dissipation of the principal barotropic tidal constituents M2, S2, K1 and O1 over the South China Sea (SCS) are examined in detail using the simulated tidal results of the Estuarine, Coastal and Ocean Model(ECOM). The results show that the M2, S2, K1 and O1 tidal energy fluxes across the Luzon Strait from the west Pacific are 38.93, 5.77, 29.73 and 28.97 GW into the SCS respectively, and the corresponding fluxes across the Karimata Strait into the Java Sea are 2.42, 0.36, 8.67 and 7.86 GW, respectively. There are also M2 tidal energy fluxes of 25.28 GW into the Taiwan Strait from the East China Sea and northwest of the Luzon Strait. The semi-diurnal tidal energy fluxes into the Beibu Gulf of and the Gulf of Thailand (6.52 GW in all) are much weaker than the diurnal tides (24.74GW). There is 12.28GW of diurnal tidal energy flux into the Sulu Sea from the SCS, while 1.92 GW of semi-diurnal tidal energy flux in a contrary direction. The net tidal energy fluxes and bottom boundary layer dissipation, which should be equal to each other in steady state, are not balanced in each area of the SCS. The most convenient management to this is to modulate the bottom friction coefficients, which are calculated to be 0.0023, 0.0024, 0.0023, and 0.0021 for the Taiwan Strait, the Beibu Gulf, the Gulf of Thailand and deep sea areas in the SCS, respectively.

Key words: South China Sea, tidal energy flux, bottom boundary layer dissipation, bottom friction coefficient