北部湾潮波数值研究

赵昌; 吕新刚; 乔方利

北部湾潮波数值研究

1.
国家海洋局第一海洋研究所,山东青岛 266061;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;中国海洋大学海洋环境学院,山东青岛 266100
2.
国家海洋局第一海洋研究所,山东青岛 266061;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

基金项目: 国家自然科学基金项目(40806016);我国近海海洋综合调查与评价专项"海洋可再生能源开发与利用前景评价"(908-02-05-01);我国近海海洋综合调查与评价专项"我国近海海洋可再生能源调查与研究成果集成"(908-ZC-I-21)。

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出版历程
- 收稿日期: 2010-01-18

Numerical study of the tidal waves in the Gulf of Tonkin

1.
The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Key Laboratory of Marine Science and Numerical Modeling (MASNUM), State Oceanic Administration, Qingdao 266061, China;Collage of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China
2.
The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;Key Laboratory of Marine Science and Numerical Modeling (MASNUM), State Oceanic Administration, Qingdao 266061, China

摘要

摘要: 利用普林斯顿海洋模式(POM08)建立了北部湾及其临近海区潮汐潮流数值模式,模拟了K₁,O₁,M₂和S₂这4个主要分潮,分析了模拟的潮汐和潮流分布特征,从潮波能量的角度讨论了琼州海峡对北部湾潮波系统的影响,并给出北部湾潮能的耗散情况。研究表明,北部湾是典型的全日潮海区,K₁和O₁分潮在南部湾口形成半个旋转潮波系统,无潮点位于越南顺安附近岸边。琼州海峡中的欧拉潮汐余流为西向流,潮余流造成的水通量约为0.034×10⁶m³/s;余流出海峡西口后,先折向北,然后转向南流出湾外。研究海区中两个强潮流区分别位于琼州海峡和海南岛的西侧,同时这也是两个潮能的高耗散区。北部湾的潮能自南部湾口由外海传入,通过西口涌入琼州海峡,到达海峡东口时日潮波的能量已基本耗散殆尽,在海峡内耗散的4个分潮的潮能约为3.33 GW,相当于北部湾潮能耗散量的35%左右。数值试验表明,琼州海峡作为潮能耗散的重要海区,其存在对于北部湾潮波系统的形成具有较大影响。计算了底边界潮能耗散,结果表明在北部湾和琼州海峡,底边界耗散的潮能分别占该海区总耗散的83%和80%。
- 潮汐 /
- 潮流 /
- 北部湾 /
- 数值模拟 /
- 琼州海峡 /
- 潮能
Abstract: A high resolution numerical model for the tides and tidal currents in the Gulf of Tonkin (GT, also known as Beibu Gulf) and its adjacent waters is developed on the basis of Princeton Ocean Model (POM08),and is used to numerically simulate the four principal tidal constituents, K₁, O₁, M₂ and S₂. The main tidal characteristics are presented in detail, followed by an analysis of the influences of Qiongzhou Strait (QzS) on the tidal wave system in the GT from the point of tidal energy dissipation.Diurnal tides are dominant in the GT.For either K₁ or O₁ constituent, there is a half rotary tidal system near the southern mouth of GT, with the amphidromic points located almost on the coast near Thuan An, Vietnam.The residual current is westward in the QzS, resulting in a water volume transport of 0.034 Sv; after flowing out of the western mouth of QzS, it first turns northward and then southward, forming a anticlockwise curve in the GT.Strong tidal currents are found in two regions: the QzS and the waters off the west coast of Hainan Island, where the tidal energy dissipation rates are the highest in the modal domain.The tidal motion in the GT is maintained by the energy flux from the South China Sea through the southern mouth of the GT.Tidal energy fluxes into the QzS from the western mouth, and nearly all the energy of diurnal tides dissipates away within the strait.The energy dissipation of the four constituents amounts to 3.33 GW in the QzS, accounting for 35% of that consumed in the GT, though the area of QzS is only 2% of that of the GT.The Qiongzhou Strait, as an important area of energy dissipation, plays a significant role in the formation of the tidal waves in the GT.Calculation shows that the bottom boundary dissipation of tidal energy accounts for 83% and 80% of the total dissipation in the GT and QzS, respectively.
- tide /
- tidal current /
- Gulf of Tonkin (Beibu Gulf) /
- numerical simulation /
- Qiongzhou Strait /
- tidal energy

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参考文献(23)

李树华, 夏华永, 陈明剑.广西近海水文及水动力环境研究[M].北京:海洋出版社, 2001:210.

李树华.北部湾潮波的数值模拟试验[J].热带海洋, 1986, 5(3):7—14.

LIU X G, YE A L.Numerical investigation of the three-dimensional tidal current fields in the Gulf of Tonkin[J].Journal of Ocean University of Qingdao, 1988, 18(2):8—16.

周朦,方国洪.二维长波方程的一个无条件稳定有限差分格式[J].海洋与湖沼, 1988, 19(2):164—172.

朱耀华,方国洪.一种二维和三维嵌套海洋流体动力学数值模式及其在北部湾潮汐和潮流数值模拟中的应用[J].海洋与湖沼, 1993, 24(2):117—125.

曹德明,方国洪.北部湾潮汐和潮流的数值模拟[J].海洋与湖沼, 1990, 21(2):105—113.

刘爱菊,张延廷.北部湾潮汐数值预报及其分析[J].海洋与湖沼, 1997, 28(6):640—645.

夏华永, 殷忠斌, 郭芝兰, 等.北部湾三维潮流数值模拟[J].海洋学报, 1997, 19(2):21—31.

MANH D, YANAGI T.A three-dimensional numerical model of tide and tidal current in the Gulf of Tongking[J].La mer, 1997, 35:15—22.

孙洪亮, 黄卫民.北部湾潮汐潮流的三维数值模拟[J].海洋学报, 2001,23(2): 1—8.

俎婷婷.北部湾环流及其机制的分析 .青岛:中国海洋大学, 2005.

LV X G,QIAO F L, WANG G S, et al.Upwelling off the west coast of Hainan Island in summer:its detection and mechanisms[J]. Geophysical Research Letters, 35, L02604, doi: 10.1029/2007GL032440.

BLUMBERG A F, MELLOR G L.A description of a three dimensional coastal ocean circulation model //HEAPS N S.Three Dimensional Coastal Ocean Models, Coastal and Estuarine Sciences, Vol 4.Washington: American Geophysical Union, 1987:1—16.

FANG G H, KWOK Y K, YU K J, et al.Numerical simulation of principal tidal constituents in the South China Sea, Gulf of Tonkin and Gulf of Thailand[J].Continental Shelf Research, 1999, 19:845—869.

方国洪,郑文振,陈宗镛,等.潮汐和潮流的分析和预报[M].北京:海洋出版社, 1986:474.

吴自库, 王丽娅, 吕咸青, 等.北部湾潮汐的伴随同化数值模拟[J].海洋学报, 2003, 25(2):128—135.

CHEN C L, LI P L, SHI M C, et al.Numerical study of the tides and residual currents in the Qiongzhou Strait[J].Chinese Journal of Oceanology and Limnology, 2009, 27(4): 931—942.

HU J Y, KAWAMURA H, TANG D L.Tidal front around the Hainan Island, northwest of the South China Sea[J].Geophys Res, 108(C11), 3342, doi: 10.1029/2003JC001883.

陈波,严金辉,王道儒,等.琼州海峡冬季水量输运计算[J].中国海洋大学学报, 2007, 37(3):357—364.

柯佩辉.琼州海峡的海流和水交换的初步分析[J].热带海洋, 1983, 2(1):42—46.

SHI M C, CHEN C S, XU Q C, et al.The Role of Qiongzhou Strait in the Seasonal Variation of the South China Sea Circulation[J]. Journal of Physical Oceanography, 2002, 32(1):103—121.

孙湘平.中国近海区域海洋[M].北京:海洋出版社, 2006:136—137.

TAYLOR G I.Tidal friction in the Irish Sea[J].Philosophical Transactions of the Royal Society of London, 1919, A220:1—33.

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