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A global shallow-water model on an icosahedral-hexagonal grid by amulti-moment constrained finite-volume scheme
Chen CG(陈春刚); Bin JZ(宾聚忠); Xiao F(肖锋); Li XL; Shen XS; Chen, CG (reprint author), 28 Xianning West Rd, Xian 710049, Shaanxi, Peoples R China.
Source PublicationQuarterly Journal of The Royal Meteorological Society
2014-01
Volume140Issue:679Pages:639-650
ISSN0035-9009
AbstractA third-order global shallow-water model was developed on an icosahedral-hexagonal grid with the application of the multi-moment constrained finite-volume (MCV) method. Using the hexagonal grid, the sphere is divided into quasi-uniform elements and free of polar problems. The MCV model defines seven degrees of freedom (DOFs) as the prognostic variables which are the point values at the six vertices and the centre for each hexagonal element to construct a third-order scheme. The time evolution equations to update the DOFs are derived through the constraint conditions on different moments, i.e. the point value and the volume-integrated average (VIA) moments. Rigorous conservation is guaranteed by the constraint on the VIA through a flux form. The MCV formulation is very simple and easy to implement. We evaluated the model with benchmark tests, and the competitive results reveal the proposed model to be an accurate and practical framework for developing general circulation models.
KeywordGlobal Model Icosahedral-hexagonal Grid Multi-moment Constraints High-order Scheme Shallow-water Equations
Subject AreaThermodynamics ; Engineering
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Indexed BySCI
Language英语
WOS IDWOS:000332763400022
Funding OrganizationThis study was supported by National Key Technology R&D Program of China (project number 2012BAC22B01), Natural Science Foundation of China (project number 10902116) and JSPS KAKENHI (grant number 24560187).
Classification二类/Q1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48879
Collection高温气体动力学国家重点实验室
Corresponding AuthorChen, CG (reprint author), 28 Xianning West Rd, Xian 710049, Shaanxi, Peoples R China.
Recommended Citation
GB/T 7714
Chen CG,Bin JZ,Xiao F,et al. A global shallow-water model on an icosahedral-hexagonal grid by amulti-moment constrained finite-volume scheme[J]. Quarterly Journal of The Royal Meteorological Society,2014,140(679):639-650.
APA Chen CG,Bin JZ,Xiao F,Li XL,Shen XS,&Chen, CG .(2014).A global shallow-water model on an icosahedral-hexagonal grid by amulti-moment constrained finite-volume scheme.Quarterly Journal of The Royal Meteorological Society,140(679),639-650.
MLA Chen CG,et al."A global shallow-water model on an icosahedral-hexagonal grid by amulti-moment constrained finite-volume scheme".Quarterly Journal of The Royal Meteorological Society 140.679(2014):639-650.
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