环台湾岛海域半日潮波特征的三维模拟
Numerical simulation of characteristics of semidiurnal tidal waves in sea region around Taiwan
-
摘要: 用1997版POM海洋模式,首次应用于环台湾岛海域的潮波数值研究.得到该海域的半日潮波主要为23°N以南西太平洋传来的胁振潮.影响台湾海峡的半日潮波分别由海峡南北口传入的两支潮波,且北支强于南支.福建沿岸湄州湾-兴化湾为最强潮区,其M2分潮最大振幅可达240cm.最强潮流区位于澎湖水道,M2分潮最大潮流达196cm/s.环台湾岛海域潮波潮流水平结构上除海峡北部原有一个圆流点外,还发现另外存在4个新的圆流点.潮流垂直结构上主要为右偏,接近底层处为左偏.Abstract: POM 97, an oceanic model, has been used for the first time to the numerical study on the tidal waves of the sea reg ions around Taiwan.In this paper, we have got the result that the semidiurnal tidal waves of these area mainly are the co-operating tide which comes from the south of 23°N of the western Pacific.Those semidiurnal tidal waves which affect the Taiwan channel come respectively from the south and the north entrance of the channel, and the north one is stronger than the south's.The strongest tidal field is the area from the Meizhou Bay to the Xinhua Bay along the coast of Fujian Province, where the biggest amplitude of the M2 partial tide can reach 240 cm.The strongest tidal current fields lie in Lake Penghu water course, where the maximum velocity of the M2 partial tide can arrived at 196m/s.In the hor izontal structure of the tidal currents, we have found that there is a stream dot in the north of the channel, besides, there still exist four new ones.As for the vertical structure, it mainly bias to right; and near the bottom layer, it bias to left.
-
叶安乐,梅丽明.渤黄东海潮波数值模拟[J].海洋与湖沼,1995,26(1):63～69. 窦振兴,杨连武,J.Ozer.渤海三维潮流数值模拟[J].海洋学报,1993,15(5):1～15. 夏华永,段忠斌,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. 万振文,等.渤黄东海潮波运动数值模拟[J].海洋与湖沼,1998,29(6):611～616. 丁文兰.台湾海峡潮汐与潮流的分布特征[J].台湾海峡,1983,2(1):1～8. 方国洪,杨景飞,赵绪才.台湾海峡潮汐与潮流的一个数值模型[J].海洋学报,1985,7(1):12～20. 叶安乐,等.台湾海峡及其附近海域三维半日潮的数值研究[J].海洋与湖沼,1985,16(6):439～449. BLUMBURG A F,MELLOR G L.A description of a three-demensional coastal ocean circulation model[A].In:Three Dimensional Coastal Models[C],1987,4(N.Heaps,ed),208,American Geophysical Union.Washington DC. 沈育疆.东中国海潮汐数值计算[J].山东海洋学院学报,1980,10(3):26～35. 王志豪.台湾海峡的潮汐[J].台湾海峡,1985,4(2):120～128. 朱首贤,朱建荣,沙文钰.M2分潮对夏季长江冲淡水扩展影响的数值研究[J].海洋与湖沼,1999,30(6):711～717. 郑文振,陈福年,陈新忠.台湾海峡的潮汐和潮流[J].台湾海峡,1982,1(2):1～4. 叶安乐,陈宗镛,于宜法.台湾海峡及其附近海域三维半日潮波的数值研究[J].海洋与湖沼,1985,16(6):439～449. 李立,王景寿.对台湾海峡潮流的一点认识[J].海洋与湖沼,1990,21(6):578～580. 叶安乐.潮流椭圆长轴方向随深度变化的特征[J].海洋湖沼通报,1984,2:1～6. SVERDRUP H U.Dynamics of tides on the North Siberian Shelf[J].Geofysiske Publikasjoner.1926.4(5) -
计量
- 文章访问数: 886
- HTML全文浏览量: 6
- PDF下载量: 1347
- 被引次数: 0
下载:
