海洋科学2017,Vol.41Issue(10):94-101,8.DOI:10.11759/hykx20170502001
台湾东北部地形共振对M2内潮演化影响的数值模拟研究
Effects of topographical resonance on the evolution of M2 internal tides northeast of Taiwan
摘要
Abstract
Barotropic tides,variable bottom topography,and vertical stratification are important factors influencing the generation of internal tides.Northeast of Taiwan,M2 internal tides are effectively generated over multiple and varying topographical features that form a complex wave field.In this study,we used the Regional Ocean Modeling System to investigate the generation,propagation,and dissipation of the M2 internal tides northeast of Taiwan.The results of our numerical experiments show that the distance between the I-Lan ridge and the Mien-Hua canyon is comparable to the wavelength of M2 internal tides.The barotropic-to-baroclinic energy conversion and dissipation associated with these two sources are effectively amplified by the resonance mechanism.We used sensitive numerical experiments to investigate other factors affecting the generation of M2 internal tides.A higher resolution model can better represent small-scale topographical features,which is important for simulating the distribution of the generation sites.The results also show that stratification influences the generation and propagation of internal tides whereas the effect of the resonance mechanism is negligible.关键词
台湾东北部/内潮/ROMS(Regional Ocean Modeling System)/共振Key words
northeast of Taiwan/internal tides/ROMS(Regional Ocean Modeling System)/resonance分类
海洋科学引用本文复制引用
畅航,曹圣山,徐振华,尹宝树..台湾东北部地形共振对M2内潮演化影响的数值模拟研究[J].海洋科学,2017,41(10):94-101,8.基金项目
国家自然科学基金项目(41528601,41376029,U1406401,41421005) (41528601,41376029,U1406401,41421005)
中国科学院战略性先导科技专项(XDA10020104,XDA10020101) (XDA10020104,XDA10020101)
中国科学院青年创新促进会资助项目 ()
中国科学院创新交叉团队资助项目 ()
中国科学院前沿科学重点项目 National Natural Science Foundation of China,No.41528601,No.41376029,No.U1406401,No.41421005 ()
Strategic Priority Research Program of the Chinese Academy of Science,No.XDA10020104,No.XDA10020101 ()
Youth Innovation Promotion Association of the Chinese Academy of Sciences ()
Interdisciplinary Innovation Team of the Chinese Academy of Sciences ()
Key Research Program of Frontier Sciences,the Chinese Academy of Sciences ()