An ocean circulation model based on Eulerian forward-backward difference scheme and three-dimensional, primitive equations and its application in regional simulations

IOCAS-IR

	An ocean circulation model based on Eulerian forward-backward difference scheme and three-dimensional, primitive equations and its application in regional simulations
	Han L(韩磊); Yuan YL(袁业立)
发表期刊	Journal of Hydrodynamics
ISSN	1001-6058
	2014-02-15
出版年	2014
卷号	v.26 期号:01 页码:51-63
文献类型	CNKI期刊论文
摘要	A two-time-level,three-dimensional numerical ocean circulation model is established with a two-level,single-step Eulerian time-difference scheme.The mathematical model of the large-scale oceanic motions is based on the terrain-following coordinated,Boussinesq,Reynolds-averaged primitive equations of ocean dynamics.A simple but very practical Eulerian forward-backward method is adopted to replace the most preferred leapfrog scheme as the time-difference method for both barotropic and baroclinic modes.The forward-backward method is of the second order of accuracy,requires only once of the function evaluation per time step,and is free of the computational mode inherent in the three-level schemes.It is superior in many respects to the original leapfrog and Asselin-filtered leapfrog schemes in the practical use.The performance of the newly-built circulation model is tested by simulating a barotropic(tides in marginal seas of China)and a baroclinic phenomenon(seasonal evolution of the Yellow Sea Cold Water Mass),respectively.The three-year time histories of four prognostic variables obtained by the POM model and the two-time-level model are compared in a regional simulation experiment for the northwest Pacific to further show the reliability of the two-level scheme circulation model.
关键词	forward-backward scheme,ocean circulation model,Yellow Sea Cold Water Mass
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A010;
CNKI专题名称	海洋学;
分类号	P731.2
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Project supported by the National Science Foundation of China(Grant No.40906017,41376038) ; the National High Technology Research and Development Program of China(863 Program,Grant No.2013AA09A506)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/190556
专题	中国科学院海洋研究所
作者单位	1.InstituteofOceanography,ChinaAcademyofSciences 2.FirstInstituteofOceanography,StateOceanicAdministration
推荐引用方式 GB/T 7714	Han L,Yuan YL. An ocean circulation model based on Eulerian forward-backward difference scheme and three-dimensional, primitive equations and its application in regional simulations. 2014.