National Taiwan Ocean University Institutional Repository:Item 987654321/43680
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 27329/39174
造访人次 : 2479479      在线人数 : 32
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 进阶搜寻

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/43680

题名: Parallel domain-decomposed Taiwan Multi-scale Community Ocean Model (PD-TIMCOM)
作者: Yu-hengTseng;Mu-huaChien
贡献者: 國立臺灣海洋大學:海洋環境資訊學系
关键词: Ocean General Circulation Model (OGCM);Domain-decomposition;Error Vector Propagating (EVP)
日期: 2011-06
上传时间: 2017-10-24T08:30:15Z
出版者: Computers & Fluids
摘要: Abstract:The Parallel Domain-decomposed Taiwan Multi-scale Community Ocean Model (PD-TIMCOM) was developed to provide a flexible and efficient community ocean model for simulating a variety of idealized and real ocean flows over a wide range of scales and boundary conditions. The model is particularly targeted at resolving multi-scale dynamics in the ocean environment, ranging from small scale turbulence to the global circulation gyres. The novel parallel algorithm improves the efficiency of the Error Vector Propagating (EVP) method, a simple direct solver for the typical pressure Poisson equations in the PD-TIMCOM. The new approach is ideal for multiple processes and takes advantage of parallel domain-decomposition, which can significantly reduce the operational counts and computational costs simultaneously. The speed-up is proportional to the number of domains, thus making the PD-TIMCOM a practical eddy-resolving global ocean model for climate projection. We illustrate the parallel performance based on the 1/4° global adaptation of PD-TIMCOM. Our results show accurate meso-scale variability, the reasonable separation of several western boundary currents from the coast, and the appropriate watermass distribution in the global ocean. Consistent with satellite altimetry, the results also show clear mean fronts in the Kuroshio Extension and extensive Kuroshio–Oyashio interaction. This leads to a quasi-equilibrium eddy field associated with three meandering jets in the Kuroshio Extension and Gulf Stream.
關聯: 45(1) pp.77-83
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/43680
显示于类别:[海洋環境資訊系] 演講及研討會

文件中的档案:

没有与此文件相关的档案.



在NTOUR中所有的数据项都受到原著作权保护.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈