中国海洋大学学报（自然科学版）2011，Vol.41Issue(1)：16-24,9.
吕宋海峡M2内潮生成与传播数值模拟研究
Numerical Simulation Study of M2 Internal Tides Generation and Propagation in the Luzon Strait
摘要
Abstract
Based on the z-coordinate model HAMSOM, we introduced the internal-tide viscosity term and applied the modified model to numerically investigate the M2 internal tides in the Luzon strait for its generation and propagation.The results show that: (1) The amplitude upper 250 m of the M2 internal tides generated in the Luzon strait is maximum at the thermocline.The internal tides near island slopes are stronger than those in other areas and the maximum amplitude there is about 40 m.(2) The island slope areas in the northwest of Itbayat island, the southwest of Batan islands and the northwest of Babuyan islands are the generation source areas of the M2 internal tides.(3) The M2 internal tides generated in the strait propagate eastward and westward.The westward internal tide energy at the west of Batan islands travels slantingly downwards and returns to seasurface after the reflection near the Heng-Chun Ridge,which returns to bottom after the second reflection on the seasurface.In this progress, high mode internal tides are stimulated and different modes appear the destructive interference phenomenon.The westward energy divides into two branches, one branch generated in the northwest of Babuyan Islands directly turns into the sea basin, the other branch generated in the island slope areas of Itbayat island and Batan islands travels to the South China Sea shelf like a beam.When arriving in 118°E, a part of this energy turns into the sea basin, and the rest part travels northwest to coast area of China.Continental shelf and slopes have an important function of energy dissipation.The highest internal tide energy in the Luzon Strait is at the northwest of Itbayat island, which propagates northeastwards to the Pacific Ocean.And in the east of 122°E, the eastward internal tide energy propagates southeastwards to the Pacific Ocean like a beam.关键词
M2内潮/HAMSOM/内潮能通量/吕宋海峡Key words
M2 internal tides/ HAMSOM/ internal tide energy flux/ the Luzon Strait分类
海洋科学引用本文复制引用
李欢,陈学恩,宋丹..吕宋海峡M2内潮生成与传播数值模拟研究[J].中国海洋大学学报（自然科学版）,2011,41(1):16-24,9.基金项目
海洋公益性行业科研专项(200905001),科技部对欧盟科技合作专项(0816),教育部留学回国人员科研启动基金,全球海洋水体质量的再分布及相应角动量变化研究项目资助 （200905001）
