globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2013MS000259
Scopus记录号: 2-s2.0-84904875810
论文题名:
A flux-form conservative semi-Lagrangian multitracer transport scheme (FF-CSLAM) for icosahedral-hexagonal grids
作者: Dubey S; , Mittal R; , Lauritzen P; H
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2014
卷: 6, 期:2
起始页码: 332
结束页码: 356
语种: 英语
英文关键词: Advection ; Finite volume method ; FF-CSLAM ; icosahedral-hexagonal ; Monotonicity ; Overall accuracies ; Polynomial reconstruction ; Reconstruction functions ; Transport schemes ; Weighted least squares ; Earth sciences
英文摘要: A high-order incremental "remap-type" transport scheme is presented (FF-CSLAM). The scheme utilizes bi-quadratic polynomial subgrid-cell reconstruction functions based on the weighted least squares method. The integration of the reconstruction functions over flux areas, which is inherent in remap schemes, makes use of CSLAM approach of line integration. Though the formal order of the scheme is second order, yet quadratic subgrid scale polynomial reconstruction does lead to improvement in the overall accuracy of the scheme. Since the rigorous search for overlap areas between flux areas and grid cells is cumbersome, two simplifications have been suggested in the literature. The main objectives of this paper are (a) to formulate flux-form CSLAM for the icosahedral-hexagonal grid and (b) to assess the accuracy of two flux-integral simplifications. Key Points FF-CSLAM on icosahedral-hexagonal grids Comparison with other schemes using new test case suite Assessment of the different flux-area approximations © 2014. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/76101
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Department of Mathematics, Indian Institute of Technology Delhi, New Delhi, Hauz Khas, India; IBM India Research Laboratory, New Delhi, India; Climate and Global Dynamics Division, NCAR Earth Systems Laboratory, National Center for Atmospheric Research, Boulder CO, United States

Recommended Citation:
Dubey S,, Mittal R,, Lauritzen P,et al. A flux-form conservative semi-Lagrangian multitracer transport scheme (FF-CSLAM) for icosahedral-hexagonal grids[J]. Journal of Advances in Modeling Earth Systems,2014-01-01,6(2)
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