首页|期刊导航|中国海洋湖沼学报（英文版）|An isopycnic-coordinate internal tide model and its application to the South China Sea
中国海洋湖沼学报（英文版）2011，Vol.29Issue(6)：1339-1353,15.DOI:10.1007/s00343-011-1023-5
An isopycnic-coordinate internal tide model and its application to the South China Sea
An isopycnic-coordinate internal tide model and its application to the South China Sea
摘要
Abstract
A three-dimensional isopycnic-eoordinate ocean model for the study of internal tides is presented.In this model,the ocean interior is viewed as a stack of isopycnic layers,each characterized by a constant density.The isopycnic coordinate performs well at tracking the depth variance of the thermocline,and is suitable for simulation of internal tides.This model consists of external and internal modes,and barotropic and baroclinic motions are calculated in the two modes,respectively.The capability of simulating internal tides was verified by comparing model results with an analytical solution.The model was then applied to the simulation of internal tides in the South China Sea (SCS) with the forcing of M2 and K1 tidal constituents.The results show that internal tides in the SCS are mainly generated in the Luzon Strait.The generated M2 internal tides propagate away in three different directions (branches).The branch with the widest tidal beam propagates eastward into the Pacific Ocean,the most energetic branch propagates westward toward Dongsha Island,and the least energetic branch propagates southwestward into the basin of the SCS.The generated K1 internal tides propagate in two different directions (branches).One branch propagates eastward into the Pacific Ocean,and the other branch propagates southwestward into the SCS basin.The steepening process of internal tides due to shoaling effects is described briefly.Meridionally integrated westward energy fluxes into the SCS are comparable to the meridionally integrated eastward energy fluxes into the Pacific Ocean.关键词
internal tides/isopycnic coordinate/numerical simulation/South China Sea (SCS)Key words
internal tides/isopycnic coordinate/numerical simulation/South China Sea (SCS)引用本文复制引用
MIAO Chunbao,CHEN Haibo,L(U) Xianqing..An isopycnic-coordinate internal tide model and its application to the South China Sea[J].中国海洋湖沼学报（英文版）,2011,29(6):1339-1353,15.基金项目
Supported by the National High Technology Research and Development Program of China (863 Program) (Nos.2007AA09Z 118,2008AA09A402) （863 Program）
the National Natural Science Foundation of China (No.41076006) （No.41076006）
the International Cooperate Fund of NNSFC (No.40810104046) （No.40810104046）
and the Program for New Century Excellent Talents in University (111 Project)(No.B07036) （111 Project）
