黄茅海河口潮波的传播特征与机理研究

龚文平; 刘欢; 任杰; 于红兵

黄茅海河口潮波的传播特征与机理研究

1. 中山大学海洋学院近岸海洋科技研究中心, 广东广州 510275;
2. 中国科学院南海海洋研究所, 广东广州 510301

基金项目: 国家自然科学基金(40976052);教育部留学回国人员科研启动基金。

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出版历程
- 收稿日期: 2011-04-14
- 修回日期: 2011-06-01

The study of tidal propagation the in Huangmaohai Estuary and its underlying mechanisms

1. Center for Coastal Ocean Science and Technology Research, Ocean School, Sun Yat-sen University, Guangzhou 510275, China;
2. South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China

摘要

摘要: 黄茅海位处珠三角的西南,潮波自外海向陆的传播过程中,潮差和潮波性质都发生复杂的变化,对其传播过程及背后机理的研究具有重要的理论和实际意义。采用环境流体动力学(Environmental Fluid Dynamics Code, EFDC)模型,通过不同时段的观测资料对模型进行良好验证后,分析了枯季和洪季时潮波在河口内传播过程中的潮差变化、水位与流速的相位关系的变化情况,探讨了合山水闸的存在以及黄茅海与珠三角河网的相互作用对河口潮波的影响, 结果表明地形变化、摩擦力作用、入射波与反射波的叠加是造成潮波沿程变化的主要原因,合山水闸形成的反射波影响范围可达上百千米,而黄茅海与珠三角河网的相互作用减小了河口的潮差。珠三角的磨刀门河口与伶仃洋—虎门—广州河口的潮波传播表现出与黄茅海河口的不同特征。
- 珠江三角洲 /
- 黄茅海 /
- 潮波传播 /
- EFDC模型
Abstract: The Huangmaohai Estuary is located in the southwest of the Zhujiang(Pearl 1) River Delta (ZRD). Tidal propagation in the estuary endures complex variations from the offshore into the inland. Understanding its transformation processes and the underlying mechanisms is of great importance in both theoretical and practical perspectives. The Environmental Fluid Dynamics Code(EFDC) model was utilized and well calibrated by various sources of observation data. After then, the variations of tidal amplitudes and the phase differences between water level and current along its propagation were studied. The impacts of an upstream lock—Heshan Lock and the interaction between the estuary and the ZRD river-network were investigated. The model results clearly indicate that topography, bottom friction and the combination of incident and reflected waves all play important roles in the tidal propagation processes. The existence of Heshan Lock can impose an impact extending up to 100 km. The interaction between the estuary and the ZRD river-network results in a reduction of tidal amplitudes in the estuary. Comparisons among the Modaomen Estuary and the Lingding Bay-Humen-Guangzhou Estuary and the Huangmaohai Estuary demonstrate their unique characteristic.
- Zhujiang River Delta /
- Huangmaohai Estuary /
- tidal propagation /
- EFDC model

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参考文献(23)

IPPEN A T. Tidal dynamics in estuaries: Ⅰ.Estuaries of rectangular section[M]//IPPEN A T. Estuary and Coastline Hydrodynamics. New York: McGraw-Hill, 1966: 493-522.

OFFICER C B. Physical Oceanography of Estuaries and Associated Coastal Waters[M]. New York: John Wiley, 1976.

HUNT J N. Tidal oscillation in estuaries[J]. Geophysical Journal of Royal Astronomy Society, 1964, 8: 440-455.

PRANDLE D, RAHMAN M. Tidal response in estuaries[J]. Journal of Physical Oceanography, 1980, 10: 1552-1573.

PARK B B. Frictional effects on the tidal dynamics of a shallow estuary. Baltimore:John Hopkins University,1984.

JAY D A. Green's law revisited: tidal long-wave propagation in channels with strong topography[J]. Journal of Geophysical Research, 1991, 96: 20585-20598.

FRIEDRICHS C T. AUBREY D G. Tidal propagation in strongly convergent channels[J]. Journal of Geophysical Research, 1994, 99(C2): 3321-3336.

LANZONI S, SEMINARA G. On tide propagation in convergent estuaries[J]. Journal of Geophysical Research, 1998, 103(C13): 30793-30812.

吴创收, 刘欢, 武亚菊,等. 黄茅河口沿程异常潮差:Ⅰ.理论模型研究[J]. 海洋科学进展, 2010, 28(4): 436-444.

武亚菊, 刘欢, 吴创收,等. 黄茅河口沿程异常潮差数值模拟研究[J]. 海洋科学进展, 2011, 29(1): 16-27.

杨雪舞,于红兵,孙宗勋,等.黄茅海河口湾现代动力地貌体系和冲淤过程分析[J].热带海洋,1997,16(1):49-59。

胡嘉堂.珠江三角洲河网与河口水-沙-污染物能量模拟研究. 广州:中山大学,2009.

黄方,叶春池,温学良,等.黄茅海盐度特征及其盐水楔活动范围[J].海洋通报,1994,13(2):33-39。

HAMRICK, J M. A three-dimensional environmental fluid dynamics computer code: theoretical and computational aspects // Special Report in Applied Marine Science and Ocean Engineering, No. 317.College of William and Mary, VIMS, 1992:63.

HAMRICK J M. WU T S. Computational design and optimization of the EFDC/HEM3D surface water hydrodynamic and eutrophication models.[M]//DELICH G, WHEELER M F. Next Generation Environmental Models and Computational Methods. Society for Industrial and Applied Mathematics, Pennsylvania, 1997: 143-161.

SHEN J, HAAS L. Calculating age and residence time in the tidal York River using three-dimensional model experiments[J]. Estuarine, Coastal and Shelf Science, 2004, 61(3): 449-461.

SHEN J, LIN J. Modeling study of the influences of tide and stratification on age of water in the tidal James River[J]. Estuarine, Coastal and Shelf Science, 2006, 68(1/2):101-112.

GONG W, SHEN J. Response of sediment dynamics in the York River Estuary, USA to tropical cyclone Isabel of 2003[J]. Estuarine, Coastal and Shelf Science, 2009, 84(1): 61-74.

WEISBERG R H, ZHENG L. Hurricane storm surge simulations comparing three-dimensional with two-dimensional formulations based on an Ivan-like storm over the Tampa Bay, Florida region[J]. Journal of Geophysical Research, 2008,113: C12001. doi: 10.1029/2008JC005115.

GONG W, SHEN J. The response of salt intrusion to changes in river discharge and tidal mixing during the dry season in the Modaomen Estuary, China[J]. Continental Shelf Research, 2011, 31: 769 788.

PAWLOWICZ R, BEARDSLEY B, LENTZ S. Classical tidal harmonic analysis including error estimates in MATLAB using T_TIDE[J]. Computers and Geosciences,2002, 28: 929-937.

SAVENIJE H H G. Analytical expression for tidal damping in alluvial estuaries[J]. Journal of Hydraulic Engineering, 1998, 124: 615-618.

HORREVOETS A C, SAVENIJE H H G, SCHUURMAN J N, et al. The influence of river discharge on tidal damping in alluvial estuaries[J]. Journal of Hydrology, 2004, 294: 213-228.

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