IOCAS-IR  > 海洋环流与波动重点实验室
A two-time-level split-explicit ocean circulation model (MASNUM) and its validation
Han Lei1,2; Han, L (reprint author), State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China.
2014-11-01
Source PublicationACTA OCEANOLOGICA SINICA
Volume33Issue:11Pages:11-35
SubtypeArticle
AbstractA two-time-level, three-dimensional numerical ocean circulation model (named MASNUM) was established with a two-level, single-step Eulerian forward-backward time-differencing scheme. A mathematical model of large-scale oceanic motions was based on the terrain-following coordinated, Boussinesq, Reynolds-averaged primitive equations of ocean dynamics. A simple but very practical Eulerian forward-backward method was adopted to replace the most preferred leapfrog scheme as the time-differencing method for both barotropic and baroclinic modes. The forward-backward method is of second-order of accuracy, computationally efficient by requiring only one function evaluation per time step, and free of the computational mode inherent in the three-level schemes. This method is superior to the leapfrog scheme in that the maximum time step of stability is twice as large as that of the leapfrog scheme in staggered meshes thus the computational efficiency could be doubled. A spatial smoothing method was introduced to control the nonlinear instability in the numerical integration. An ideal numerical experiment simulating the propagation of the equatorial Rossby soliton was performed to test the amplitude and phase error of this new model. The performance of this circulation model was further verified with a regional (northwest Pacific) and a quasi-global (global ocean simulation with the Arctic Ocean excluded) simulation experiments. These two numerical experiments show fairly good agreement with the observations. The maximum time step of stability in these two experiments were also investigated and compared between this model and that model which adopts the leapfrog scheme.
KeywordOcean Circulation Model Forward-backward Method Equatorial Rossby Soliton Yellow Sea Cold Water Mass
Subject AreaOceanography
DOI10.1007/s13131-014-0553-z
Indexed BySCI
Language英语
WOS IDWOS:000344583400002
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/23907
Collection海洋环流与波动重点实验室
Corresponding AuthorHan, L (reprint author), State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China.
Affiliation1.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China
2.Chinese Acad Sci, Inst Oceanog, Qingdao 266071, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Han Lei,Han, L . A two-time-level split-explicit ocean circulation model (MASNUM) and its validation[J]. ACTA OCEANOLOGICA SINICA,2014,33(11):11-35.
APA Han Lei,&Han, L .(2014).A two-time-level split-explicit ocean circulation model (MASNUM) and its validation.ACTA OCEANOLOGICA SINICA,33(11),11-35.
MLA Han Lei,et al."A two-time-level split-explicit ocean circulation model (MASNUM) and its validation".ACTA OCEANOLOGICA SINICA 33.11(2014):11-35.
Files in This Item:
File Name/Size DocType Version Access License
A two-time-level spl(3789KB) 开放获取ODC PDDLView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Han Lei]'s Articles
[Han, L (reprint author), State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Han Lei]'s Articles
[Han, L (reprint author), State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Han Lei]'s Articles
[Han, L (reprint author), State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: A two-time-level split-explicit ocean circulation model (MASNUM) and its validation.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.