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WAVEWATCH-Ⅲ海浪模式中岛屿次网格效应的检验与比较

, PP. 11-19

Keywords: WAVEWATCH-Ⅲ模式,次网格效应,通量穿透度系数

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Abstract:

综合利用水深数据和高分辨率海岸线数据,在优化WAVEWATCH-Ⅲ模式计算网格的基础上,发展了波能通量穿透度系数自动计算方法,完善了岛屿次网格地形效应计算方案;并与直接提高网格空间分辨率来分辨多岛屿地形处理方案的计算效果进行对比研究。表明:岛屿次网格效应方案充分体现了海岸和多岛屿地形对海浪传播的影响,且主要是对低频海浪能量的抑制和阻碍作用,对模式计算结果有明显改善;在低分辨计算网格中考虑岛屿次网格效应时,模式对有效波高的计算精度与高分辨率网格的结果精度相当,且计算效率有显著提高。

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