Delaunay mesh generation for an unstructured-grid ocean general circulation model

被引:28
作者
Legrand, S. [1 ,2 ]
Legat, V. [2 ]
Deleersnijder, E. [1 ]
机构
[1] Catholic Univ Louvain, Inst Astron & Geophys G Lemaitre, B-1348 Louvain, Belgium
[2] Catholic Univ Louvain, Ctr Syst Engn & Appl Mech, B-1348 Louvain, Belgium
关键词
Unstructured grid; Delaunay triangulation; Sphere; Global ocean;
D O I
10.1016/S1463-5003(00)00005-6
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
An incremental method is presented to generate automatically boundary-fitted Delaunay triangulations of the global ocean. The method takes into account Earth curvature and allows local mesh refinement in order to resolve topological or dynamical features like midocean ridges or western boundary currents. Crucial issues like the nodes insertion process, the boundary integrity problem or the creation of inner nodes are explained. Finally, the quality of generated triangulations is discussed. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:17 / 28
页数:12
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