Implementation of WAVEWATCH III at Fleet Numerical Meteorology and Oceanography Center

MTS/IEEE Oceans 2001. An Ocean Odyssey. Conference Proceedings (IEEE Cat. No.01CH37295) Pub Date : 2001-11-05 DOI:10.1109/OCEANS.2001.968051

P. Wittmann

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引用次数: 14

Abstract

Fleet Numerical Meteorology and Oceanography Center (FNMOC) Is in the process of transitioning its operational models suite from a Cray C90 shared memory architecture to SGI Origin 2000 (O2K) and Origin 3000 (O3K) distributed memory systems. As part of this transition, the third generation WAVEWATCH III (WW3) wave model is currently being implemented to replace the third generation Wave Model (WAM). WW3 offers several advantages over WAM. For example, WW3 has a third-order accurate wave propagation scheme that reduces the numerical diffusion of swell energy characteristic of the first-order scheme used In WAM. Also, WW3 has been programmed to run efficiently on distributed memory computers. The global Implementation of WW3 was ported to the O2K in December 2000, with atmospheric forcing provided by the FNMOC Navy Operational Global Atmospheric Prediction System (NOGAPS) model. Regional versions of WW3 have also been implemented on the O3K computer in six areas of naval Interest. The wave models were run in parallel two months and the results are compared to wave height measurements. WW3 became operational at FNMOC, replacing WAM, In August of 2001.

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在舰队数值气象与海洋学中心实施WAVEWATCH III

船队数值气象和海洋学中心(FNMOC)正在将其操作模型套件从Cray C90共享内存架构过渡到SGI Origin 2000 (O2K)和Origin 3000 (O3K)分布式内存系统。作为这一转变的一部分，第三代WAVEWATCH III (WW3)波模型目前正在实施，以取代第三代波模型(WAM)。与WAM相比，WW3提供了几个优势。例如，WW3具有三阶精确的波传播格式，它减少了WAM中使用的一阶格式的膨胀能量特性的数值扩散。此外，WW3已被编程为在分布式内存计算机上高效运行。第三次世界大战的全球实施在2000年12月被移植到O2K，由FNMOC海军作战全球大气预测系统(NOGAPS)模式提供大气强迫。第三次世界大战的地区版本也在O3K计算机上在六个海军感兴趣的地区实施。波浪模型并行运行了两个月，并将结果与波高测量结果进行了比较。第三次世界大战于2001年8月在FNMOC开始运作，取代了WAM。

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MTS/IEEE Oceans 2001. An Ocean Odyssey. Conference Proceedings (IEEE Cat. No.01CH37295)

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